ДИСКОВЫЙ НОСИТЕЛЬ ЗАПИСИ, УСТРОЙСТВО ЗАПИСИ И/ИЛИСЧИТЫВАНИЯ ИНФОРМАЦИИ С НОСИТЕЛЯ ЗАПИСИ

Дисковый носитель записи 1 представляет собой диск, на котором записан управляющий сигнал. Управляющий сигнал содержит информацию о диаметре. Устройство записи и/или считывания содержит приводное средство 2, предназначенное для вращения дискового носителя информации 1. Устройство содержит управляющий блок 5, который изменяет коэффициент усиления управляющего контура 2, 3, 7, 8, 9 для управления количеством оборотов в минуту носителя информации 1 в зависимости от управляющего сигнала, записанного на носителе записи. Технический результат - возможность использовать носители различных диаметров, оптимально согласовав записывающие/считывающие устройства с диаметром носителя записи. 4 с. и 2 з.п. ф-лы, 2 ил.

НОСИТЕЛЬ ЗАПИСИ СО СТРУКТУРОЙ ДАННЫХ ДЛЯ УПРАВЛЕНИЯ ПРОДОЛЖИТЕЛЬНОСТЬЮ ВОСПРОИЗВЕДЕНИЯ ЗАПИСАННЫХ НА НЕМ СТАТИЧЕСКИХ ИЗОБРАЖЕНИЙ И СПОСОБЫ И УСТРОЙСТВА ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ

Изобретение относится к оптическим дискам с высокой плотностью записи. Структура данных включает навигационную область носителя записи, в которой хранится, по меньшей мере, один список воспроизведения, первая карта точек входа и вторая карта точек входа. Список воспроизведения включает, по меньшей мере, один элемент воспроизведения и, по меньшей мере, один субэлемент воспроизведения. Элемент воспроизведения обеспечивает навигационную информацию для воспроизведения, по меньшей мере, одного статического изображения из первого файла, а субэлемент воспроизведения обеспечивает навигационную информацию для воспроизведения аудиоданных из второго файла. Первая карта точек входа включает, по меньшей мере, одну точку входа, указывающую статическое изображение, а вторая карта точек входа включает, по меньшей мере, одну точку входа, указывающую аудиоданные. Изобретение обеспечивает эффективную структуру данных для управления воспроизведением статических изображений, записанных на оптическом диске с ...

НОСИТЕЛЬ ЗАПИСИ ВЫСОКОЙ ПЛОТНОСТИ И СПОСОБ И УСТРОЙСТВО УПРАВЛЕНИЯ ВОСПРОИЗВЕДЕНИЕМ/ЗАПИСЬЮ ДАННЫХ С НЕГО

Изобретение относится к носителю записи высокой плотности и способу и устройству управления воспроизведением/записью данных с него. Информация о длине канального бита записывается в служебную область (ВСА) оптического диска в виде извилин. На основе управляющей информации о емкости диска выполняется оптимальный режим воспроизведения/записи данных. Альтернативно при последовательном выполнении множества заданных режимов детектирования битов вычисляют значения частоты ошибок по битам и воспроизводят данные в режиме детектирования битов, соответствующем наименьшему значению частоты ошибок. Благодаря этому оказывается возможным выполнять операцию воспроизведения данных, оптимальную по отношению к емкости при записи Blu-ray диска только для чтения BD-ROM даже в случае, когда дисковая информация (DI) записана в зоне постоянной информации и управляющих данных (PIC) в формате записи, требующем процесса декодирования, а емкость при записи может иметь любое из следующих значений: 23, 25, 27 Гбайт ...

ОПТИЧЕСКИЙ ДИСК ОДНОКРАТНОЙ ЗАПИСИ И СПОСОБ И УСТРОЙСТВО ДЛЯ РАЗМЕЩЕНИЯ РЕЗЕРВНОЙ ОБЛАСТИ НА ОПТИЧЕСКОМ ДИСКЕ ОДНОКРАТНОЙ ЗАПИСИ

Предлагаются оптический диск однократной записи и способ и устройство для размещения резервной области на оптическом диске однократной записи. Способ включает выделение области данных на носителе записи однократной записи и выделение внутри области данных на носителе записи области пользовательских данных и, как минимум, одной резервной области, как минимум, одной резервной области, имеющей переменный размер. Причем, максимальная емкость записи, как минимум, одной резервной области на носителе записи меньше, чем максимальная емкость записи, как минимум, одной переменной резервной области на оптическом диске перезаписываемого типа. 6 н. и 38 з.п. ф-лы, 8 ил.

ОПТИЧЕСКИЙ МНОГОСЛОЙНЫЙ НОСИТЕЛЬ ИНФОРМАЦИИ

Изобретение относится к оптическим носителям информации. Имеется информационный слой со стандартной плотностью и информационный слой с высокой плотностью. Первый из них размещен на дне подложки толщиной, например, 1,2 мм и считывается через подложку лазерным лучом. Второй слой сформирован из вещества, которое является прозрачным для лазерного излучения с длиной волны стандартных CD-плейеров (λ = 780 нм), но отражается для более короткой длины волны, используемой для дисков с высокой плотностью (λ = 635 нм). Для достижения высокой плотности во втором слое применены меньший шаг дорожки и меньшие выемки. Слой с высокой плотностью расположен рядом со стороной входа лазерного луча в подложку. Изобретение обеспечивает улучшение качества сигнала считывания, поскольку сигнал при считывании стандартного слоя меньше подвергается искажениям. 7 з.п.ф-лы, 3 ил.

ИНФОРМАЦИОННАЯ ЗАПОМИНАЮЩАЯ СРЕДА И УСТРОЙСТВО ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДЛЯ ИСПОЛЬЗОВАНИЯ С ИНФОРМАЦИОННОЙ ЗАПОМИНАЮЩЕЙ СРЕДОЙ

Изобретение относится к информационной запоминающей среде. Информационная запоминающая среда имеет области пользовательских данных и области дополнительных данных, а также синхронизирующие комбинации для различения областей пользовательских данных и областей дополнительных данных. Информационная запоминающая среда включает в себя область пользовательских данных, в которой записываются пользовательские данные, и область дополнительных данных, расположенную по меньшей мере в одной из областей перед и после области пользовательских данных. Вторые синхронизирующие комбинации, используемые в области дополнительных данных, отличаются от первых синхронизирующих комбинаций, используемых в области пользовательских данных. 2 н. и 19 з.п. ф-лы, 4 ил.

ОПТИЧЕСКИЙ НОСИТЕЛЬ ЗАПИСИ И УСТРОЙСТВО ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ

Предложен оптический носитель записи. Он включает в себя специально выделенную область, в которой записана информация, касающаяся дефекта, соответствующего дефектному блоку в области пользовательских данных. При этом информация, касающаяся дефекта, включает в себя запись списка последовательных дефектов, включающего в себя информацию, касающуюся дефектов, размещенных в последовательных местоположениях области пользовательских данных. Также предложено устройство для использования этого оптического носителя записи. 3 н.п. ф-лы, 12 ил.

НОСИТЕЛЬ ЗАПИСИ, СПОСОБ И УСТРОЙСТВО ДЛЯ ЗАПИСИ И СПОСОБ ВОСПРОИЗВЕДЕНИЯ

Изобретение относится к носителям записи, в частности, к таким, которые позволяют известному устройству воспроизведения воспроизводить данные содержимого и авторское право данных содержимого, которые должны быть защищены. Носитель записи содержит вводную зону, зону записи данных, которая сформирована на внешней периферийной стороне вводной зоны и в которую записывают множество частей данных содержимого, и выводную зону, сформированную на внешней периферийной стороне зоны для записи данных. Первая и вторая информация управления авторским правом, с помощью которых управляют авторскими правами множества частей данных содержимого, записывают на носителе в различных положениях, секретность которых отличается друг от друга. 4 н. и 43 з.п. ф-лы, 21 ил.

УСТРОЙСТВО ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДЛЯ ЗАПИСИ ДАННЫХ НА НОСИТЕЛЬ ЗАПИСИ (ВАРИАНТЫ)

Изобретение относится к области оптических носителей записи, в частности к записи на носитель записи шаблонов, характеризующих данные, относящиеся к связыванию, информации о типе связывания, указывающей, применима ли схема связывания к области, расположенной непосредственно за поврежденной областью, и к обработке поврежденной области, в котором используется указанная информация. Устройство записи и/или воспроизведения данных содержит блок записи/считывания и блок обработки. Последний после регистрации поврежденных областей в списке назначает в области управления поврежденными участками записывающей среды область связывания непосредственно за одной поврежденной областью. При этом область связывания содержит заданный шаблон. В другом варианте устройство записи и/или воспроизведения данных содержит блок обработки для выделения заранее определенного количества блоков кода с исправлением ошибок (КИО) для области, расположенной непосредственно за одной из обнаруженных поврежденных областей, и ...

ДИСКОВЫЙ НОСИТЕЛЬ ЗАПИСИ, СПОСОБ ПРОИЗВОДСТВА ДИСКОВ, УСТРОЙСТВО ПРИВОДА ДИСКА

Описан дисковый носитель записи, который позволяет осуществлять способ записи с обеспечением высокой степени надежности дополнительной информации. Дисковый носитель записи имеет область записи и воспроизведения, в которую могут быть записаны и из которой могут воспроизводиться первые данные, в соответствии со способом записи с возможностью повторной записи или со способом однократной-записи-многократного-воспроизведения, и из которой могут быть воспроизведены вторые данные, записанные в форме качания канавки. Вторые данные включают информацию адреса и дополнительную информацию. Дополнительная информация вторых данных закодирована в соответствии с первым способом коррекции ошибки, и закодированная дополнительная информация и информация адреса записаны в состоянии, закодированном в соответствии со вторым способом коррекции ошибки. 3 н. и 9 з.п. ф-лы, 39 ил.

МНОГОСЛОЙНЫЙ ОПТИЧЕСКИЙ ДИСК, ИМЕЮЩИЙ УКАЗАТЕЛЬ ТИПА СТЕКА ЗАПИСИ

Многослойный носитель записи записываемого типа имеет первый записывающий слой (40), имеющий первый стек записи (50, 51) первого типа, и второй записывающий слой (41), имеющий второй стек записи (54, 55) второго типа. Первый и второй стеки записи имеют разные параметры записи. Каждый записывающий слой имеет предварительно сформированный шаблон управления записью, считываемый с помощью лазерного пучка, для указания дорожки. По меньшей мере один шаблон управления записью содержит указатель типа стека записи для указания параметров записи второго стека записи. Записывающее устройство имеет блок (20) управления для регулировки параметров записи в устройстве в зависимости от указателя типа стека записи, извлеченного из шаблона управления записью. 2 н. и 6 з.п. ф-лы, 7 ил.

ОДНОКРАТНО ЗАПИСЫВАЕМЫЙ ДИСК, СПОСОБ РАСПРЕДЕЛЕНИЯ ОБЛАСТИ ДАННЫХ ОДНОКРАТНО ЗАПИСЫВАЕМОГО ДИСКА И СПОСОБ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ С ТАКОГО ДИСКА

Однократно записываемый диск содержит начальную зону, область данных и выходную зону. Однократно записываемый диск содержит предварительно заданную область, хранящую информацию распределения, которая указывает, распределен ли, по меньшей мере, один сегмент области данных для обработки дефектов диска. В диске и в способе информация распределения областей, определяющая структуру области данных, записана на диск, обеспечивая тем самым возможность устройству записи/воспроизведения распознавать структуру области данных. Поэтому для обработки дефектов диска возможно распределение областей, таких как резервная область, отличающихся от области хранения пользовательских данных, для области данных. 3 н. и 26 з.п. ф-лы, 18 ил.

ОПТИЧЕСКИЙ ДИСК И УСТРОЙСТВО ДЛЯ СКАНИРОВАНИЯ ОПТИЧЕСКОГО ДИСКА

Изобретение относится к оптическому диску, содержащему область для записи данных, закодированных в оптических метках с плотностью записи. Область записи содержит круговые или спиральные дорожки, сформированные с помощью сервоструктуры, содержащей заголовки, чередующиеся с частями дорожки. Заголовки содержат информацию о местоположении, закодированную в предварительно сформированных метках. Части дорожек содержат периодические характеристики, например качание, для синхронизации операций записи и считывания данных. Благодаря тому, что фаза периодических характеристик содержит скачок фазы на заданном расстоянии перед каждым заголовком, обеспечивается надежное обнаружение заголовков. 3 н. и 9 з.п. ф-лы, 10 ил.

ОПТИЧЕСКАЯ СРЕДА ДЛЯ ЗАПИСИ С РАЗЛИЧНЫМИ ХАРАКТЕРИСТИКАМИ КОЛЕБАНИЙ ДЛЯ ЗОНЫ ПОЛЬЗОВАТЕЛЯ И КОНЕЧНОЙ ЗОНЫ

Изобретение относится к области оптической записи. Оптическая среда для записи имеет зону данных пользователя и конечную зону со сформированными в них бороздками и участками между бороздками. По меньшей мере, на одной боковой поверхности бороздок зоны данных пользователя и конечной зоны формируют извилины таким образом, чтобы их характеристики были различны для зоны данных пользователя и конечной зоны. Технический результат - предотвращение отклонения блока оптической головки от зоны пользователя, улучшение качества записи и/или воспроизведения. 5 с. и 19 з.п. ф-лы, 5 ил., 2 табл.

ОПТИЧЕСКИЙ НОСИТЕЛЬ ЗАПИСИ ДЛЯ ХРАНЕНИЯ ИНФОРМАЦИИ

Изобретение относится к оптическим носителям записи для хранения данных. Носитель содержит форматированную информацию для данных и информацию изготовителя, содержащую идентификационную информацию записывающего устройства, которое формирует или модифицирует данные на носителе записи и упорядочивает информацию, относящуюся к модификации данных на носителе. При этом информация изготовителя имеет индивидуальный формат, не совместимый с другими изготовителями. Технический результат - сокращение времени, требуемого для определения, является ли действительной информация изготовителя, поддерживающая специфические функции изготовителя, которые не могут быть выполнены при использовании только форматированной информации. 6 з.п. ф-лы, 8 ил.

ОПТИЧЕСКИЙ ДИСК, ИМЕЮЩИЙ ОДНОРОДНУЮ СТРУКТУРУ (ВАРИАНТЫ), СПОСОБ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ (ВАРИАНТЫ)

Изобретение относится к оптическим дискам, которые могут быть изготовлены с использованием одних и тех же технологических параметров. Оптический диск для записи и/или воспроизведения содержит область начальной дорожки, область данных пользователя и область конечной дорожки. Каждая из областей начальной дорожки, данных пользователя и конечной дорожки включает в себя созданные в них канавки записи и поля между канавками записи. Канавки записи и поля между канавками записи включают в себя извилины, созданные, по меньшей мере, на одной стороне канавок записи и полей между канавками записи. Извилины в области начальной дорожки, в области данных пользователя и в области конечной дорожки модулируются посредством различных способов модуляции. Технический результат - повышение достоверности записи и воспроизведения сигнала. 5 н. и 59 з.п. ф-лы, 18 ил., 2 табл.

СПОСОБ УПРАВЛЕНИЯ ДАННЫМИ ДЛЯ УСТРОЙСТВА ВОСПРОИЗВЕДЕНИЯ И/ИЛИ СЧИТЫВАНИЯ С ДИСКА, СПОСОБ УПРАВЛЕНИЯ ДАННЫМИ ДЛЯ УСТРОЙСТВА ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ С ДИСКА, СПОСОБ УПРАВЛЕНИЯ ДАННЫМИ ДЛЯ УСТРОЙСТВА ВОСПРОИЗВЕДЕНИЯ С ДИСКА

Изобретение относится к способу управления данными для устройства воспроизведения и/или считывания с диска. На диске имеется множество зон, при этом каждая зона имеет область пользовательских данных для хранения пользовательских данных, а множество зон формирует группу для управления дефектами носителя записи, запасная область для замены дефектов для группы размещена на диске, и информация об исходной позиции для каждой зоны хранится в предварительно заданной области диска, при этом способ содержит следующие этапы: считывание информации об исходной позиции для каждой зоны и доступ к данным на основе считываемой информации об исходной позиции. Технический результат - повышение стабильности записи и воспроизведения за счет возможности обработки больших дефектов при скользящей замене, обеспечиваемой объединением множества зон в пределах одной группы. 5 н. и 30 з.п. ф-лы, 9 ил.

УСТРОЙСТВО ДЛЯ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ В ОТНОШЕНИИ НОСИТЕЛЯ ЗАПИСИ С ОДНОКРАТНОЙ ЗАПИСЬЮ (ВАРИАНТЫ) И НОСИТЕЛЬ ЗАПИСИ С ОДНОКРАТНОЙ ЗАПИСЬЮ

Предложены устройство для воспроизведения и/или записи данных в отношении носителя записи с однократной записью и носитель однократной записи. Носитель записи содержит временную область управления дефектами, которая содержит информацию указателя, указывающую место по меньшей мере одного кластера, в котором записан временный список дефектов. Информация указателя включает информацию о местоположении другого заменяющего кластера вместо дефектного кластера во временной области управления дефектами. Техническим результатом является повышение надежности записи временного списка дефектов. 3 н.п. ф-лы, 9 ил.

НОСИТЕЛЬ ИНФОРМАЦИИ И УСТРОЙСТВО ДЛЯ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ

Носитель информации содержит, по меньшей мере, два слоя хранения информации, каждый из которых включает в себя область регулирования оптимальной мощности для получения состояния оптической записи. Области регулирования оптимальной мощности в соседних слоях из слоев хранения информации размещены на различных радиусах носителя информации. Одна или более буферная область размещена на обеих сторонах каждой из областей регулирования оптимальной мощности. Область только для воспроизведения размещена в одном из слоев хранения информации так, что она находится напротив области регулирования оптимальной мощности соседнего одного из слоев хранения информации и по меньшей мере одной буферной области, размещенной на одной стороне соответствующей области регулирования оптимальной мощности. Технический результат - улучшение качества записи носителя информации. 5 н.п. ф-лы, 18 ил., 1 табл.

НОСИТЕЛЬ ЗАПИСИ ИНФОРМАЦИИ, СПОСОБ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ И УСТРОЙСТВО ДЛЯ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ

Носитель записи информации, способ записи и/или воспроизведения данных на этот носитель/с этого носителя и устройство записи/воспроизведения, использующее упомянутый носитель, при этом носитель имеет область данных, включающую в себя область пользовательских данных для записи пользовательских данных и резервную область для записи блоков замены, которые заменяют дефектные блоки, появляющиеся в области пользовательских данных; причем элементы списка дефектов включают в себя информацию о состоянии дефектных блоков и блоков замены, и информация о состоянии дефектных блоков в области пользовательских данных изменяется, и информация о состоянии блоков замены в резервной области изменяется в ответ на то, что резервная область заново выделена для переразметки носителя. 14 н. и 32 з.п. ф-лы, 16 ил.

НОСИТЕЛЬ ЗАПИСИ, СПОСОБ КОНФИГУРИРОВАНИЯ ИНФОРМАЦИИ УПРАВЛЕНИЯ НОСИТЕЛЕМ ЗАПИСИ, СПОСОБ ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ С ИСПОЛЬЗОВАНИЕМ ИНФОРМАЦИИ УПРАВЛЕНИЯ И УСТРОЙСТВО НОСИТЕЛЯ ЗАПИСИ

Предложен записываемый оптический диск, содержащий несколько слоев записи. На носитель записана информации управления диском, содержащая информацию стратегии записи, определяющая стратегию записи для каждого слоя записи носителя. Т.о. обеспечивается возможность записи информации на каждый слой на основе собственной стратегии записи этого слоя. 5 н. и 39 з.п. ф-лы, 10 ил.

НОСИТЕЛЬ ЗАПИСИ, СПОСОБ КОНФИГУРИРОВАНИЯ ЕГО УПРАВЛЯЮЩЕЙ ИНФОРМАЦИИ, СПОСОБ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ С ИХ ИСПОЛЬЗОВАНИЕМ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Изобретение относится к способам записи/воспроизведения управляющей информации с многослойного носителя записи с использованием управляющей информации. Способ записи управляющей информации на носителе записи, имеющем, по крайней мере, два записывающих слоя, включает следующие этапы: предоставление управляющей информации, по крайней мере, для двух записывающих слоев и запись управляющей информации в пределах определенной области носителя записи. Блоки управляющей информации упорядочены, во-первых, в соответствии с записывающим слоем, и, во-вторых, в соответствии с увеличением скорости записи применительно к этому записывающему слою. Цель изобретения - обеспечение совместимости между дисками сходных форматов. 8 н. и 30 з.п. ф-лы, 17 ил.

ИНФОРМАЦИОННЫЙ НОСИТЕЛЬ ДАННЫХ И СПОСОБ ЗАПИСИ ДАННЫХ НА НЕГО

Информационный носитель данных включаем в себя несколько слоев записи. Каждый из них имеет область данных пользователя, на которую данные могут быть записаны головкой записи/считывания. Данные записывают в порядке слоев записи от самого ближнего до самого дальнего от головки записи/считывания. Записываемая область в области данных пользователя каждого последующего слоя в направлении удаления от головки записи/считывания уменьшается по сравнения с предыдущим слоем. При этом каждый слой записи содержит записываемую область в области данных пользователя и область оптимального регулирования мощности (ОРС), чтобы поддерживать одни и те же характеристики записи/воспроизведения между множеством слоев записи. 2 н. и 5 з.п. ф-лы, 2 табл.,8 ил.

ИНФОРМАЦИОННЫЙ НОСИТЕЛЬ ЗАПИСИ, УСТРОЙСТВО ДЛЯ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ В И/ИЛИ ИЗ ИНФОРМАЦИОННОГО НОСИТЕЛЯ ЗАПИСИ, СПОСОБ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ В И/ИЛИ ИЗ ИНФОРМАЦИОННОГО НОСИТЕЛЯ ЗАПИСИ И МАШИНОЧИТАЕМЫЙ НОСИТЕЛЬ ЗАПИСИ, НА КОТОРОМ ХРАНИТСЯ ПРОГРАММА ДЛЯ ВЫПОЛНЕНИЯ СПОСОБА

Заявленное изобретение относится к информационному носителю записи и устройству считывания информации с указанного носителя. При этом заявленный носитель содержит область информации совместимости для хранения информации совместимости, которая указывает, является ли каждая из множества областей в информационном носителе записи записываемой и/или воспроизводимой, и область управления дефектами для хранения информации защиты от записи, указывающей, является ли записываемая область в информационном носителе записи защищенной от записи. Также каждая из упомянутого множества областей информационного носителя записи защищена от записи в случае, если по меньшей мере одна из информации совместимости и информации защиты от записи указывает, что запись данных на информационный носитель записи запрещена. ! Технический результат: обеспечение совместимости носителя информации и устройства считывания. 2 н. и 7 з.п. ф-лы, 16 ил., 1 табл.

НОСИТЕЛЬ ЗАПИСИ, ИМЕЮЩИЙ СТРУКТУРУ ДАННЫХ ДЛЯ УПРАВЛЕНИЯ, ПО КРАЙНЕЙ МЕРЕ, ОБЛАСТЬЮ ДАННЫХ НОСИТЕЛЯ ЗАПИСИ, И СПОСОБЫ И УСТРОЙСТВА ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ

Структура данных на носителе записи включает временную зону управления дефектами, в которой хранится блок данных. Блок данных включает информацию о записи и временную информацию о состоянии носителя записи. Информация о записи предоставляет информацию о зонах непрерывной записи в области данных носителя записи. Временная информация о состоянии носителя записи предоставляет информацию о состоянии носителя записи и содержит, по крайней мере, один указатель информации во временной зоне управления дефектами. Технический результат: оптимизация управления дефектами при помощи информации о состоянии носителя записи. 5 н. и 26 з.п. ф-лы, 6 ил.

НОСИТЕЛЬ ЗАПИСИ ИНФОРМАЦИИ, УСТРОЙСТВО ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ И СПОСОБ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ

Изобретения относятся к носителям записи информации, устройству записи/воспроизведения и способу записи/воспроизведения. Модуль записи из состава устройства записи/воспроизведения записывает данные на носитель записи информации, который содержит область пользовательских данных для записи пользовательских данных. Блок записи замещения, который замещает оригинальный блок записи, записанный в области пользовательских данных, записывается в незаписанную область области пользовательских данных, область пользовательских данных разделяется на по меньшей мере одну группу, причем каждая группа включает в себя по меньшей мере одну R-зону. Устройство записи/воспроизведения включает в себя контроллер, который управляет модулем записи так, чтобы записать замещающий блок в R-зону, включенную в ту же группу, что и группа, которой принадлежит R-зона, где записан оригинальный блок записи. Соответственно область пользовательских данных разделяется на несколько групп, определенных согласно характеристикам ...

ОПТИЧЕСКИЙ ДИСК ВЫСОКОЙ ПЛОТНОСТИ И СПОСОБ ВОСПРОИЗВЕДЕНИЯ И ЗАПИСИ ЕГО ДАННЫХ

Изобретение относится к оптическому диску высокой плотности, например, к универсальному цифровому диску высокой плотности (HD-DVD) или Blu-ray диску, который содержит начальную область, область данных и конечную область, и способу воспроизведения или записи данных оптического диска высокой плотности. Оптический диск высокой плотности содержит начальную область, область данных и конечную область. Основная информация расположена в начальной области. Минимальная длина метки или интервала основной информации, записанной в начальной области, больше минимальной длины метки или интервала данных, записываемых в области данных. Основную информацию начальной области копируют в конечную область. На основе способа воспроизведения или записи данных оптическое дисковое устройство может правильно считывать и подтверждать основную информацию с оптического диска высокой плотности, минимизировать взаимные помехи между меткой и интервалом данных записи высокой плотности, уменьшить влияние царапин и пыли на ...

ОПТИЧЕСКИЙ ДИСК С ВЫСОКОЙ ПЛОТНОСТЬЮ ЗАПИСИ И СПОСОБ ЗАПИСИ/СЧИТЫВАНИЯ ДЛЯ НЕГО

Изобретение представляет оптический диск с высокой плотностью записи, например, Blu-ray диск многократной записи (BD-RE - Blu-ray Disc Rewritable) или Blu-ray диск только для чтения (BD-ROM), и способ записи/воспроизведения для него. Разнообразная дополнительная информация, такая как информация об отражающей способности носителя записи, информация о слоях диска или о типе диска, записанная в отдельном информационном поле, включенном в блок данных, записанный в служебную область (ВСА) оптического диска с высокой плотностью записи, так чтобы он мог быть считан, когда оптический диск с высокой плотностью размещен в устройстве для оптического диска. Следовательно, можно достичь оптимальной регулировки оптической мощности и автоматической регулировки усиления или определить текущую позицию при нормальном выполнении операции записи или воспроизведения данных в соответствии с типом оптического диска. 3 н. и 32 з.п. ф-лы, 10 ил.

НЕПЕРЕЗАПИСЫВАЕМЫЙ ОПТИЧЕСКИЙ ДИСК, СПОСОБ И УСТРОЙСТВО ДЛЯ ЗАПИСИ УПРАВЛЯЮЩЕЙ ИНФОРМАЦИИ НА НЕПЕРЕЗАПИСЫВАЕМЫЙ ОПТИЧЕСКИЙ ДИСК

Изобретение относится к оптическому диску однократной записи и способу и устройству записи и воспроизведения управляющей информации на оптический диск. Носитель содержит, по меньшей мере, один слой записи, включающий в себя временную область управления дефектами (TDMA), размещенную в резервной области и/или области ввода, и хранящий в ней информацию временных списков управления дефектами, созданных прежде, чем этот носитель записи должен быть окончательно оформлен; и окончательную область управления дефектами (DMA), размещенную, по крайней мере, в области ввода и/или конечной области, в которой хранится информация самого последнего временного списка дефектов, когда носитель записи должен быть окончательно оформлен. После того как носитель записи окончательно оформлен, запись данных на носителе записи не разрешается. 5 н. и 21 з.п. ф-лы, 13 ил.

УСТРОЙСТВО ВОСПРОИЗВЕДЕНИЯ ДАННЫХ С НОСИТЕЛЯ ИНФОРМАЦИИ

Предложено устройство для воспроизведения данных, записанных на носитель информации. Устройство содержит головку, проецирующую луч на носитель, процессор сигналов и контроллер, управляющей головкой. Процессор сигналов воспроизводит информацию полярности сигнала отслеживания, относящуюся к выступающим или вдавленным элементам записи. Техническим результатом является снижение времени для получения информации полярности отслеживания. 11 з.п. ф-лы, 13 ил., 1 табл.

УСТРОЙСТВО ЗАПИСИ ДАННЫХ НА ДИСК ДЛЯ ОДНОКРАТНОЙ ЗАПИСИ И ДИСК ДЛЯ ОДНОКРАТНОЙ ЗАПИСИ

Предложены диск для однократной записи и устройство записи данных. Носитель включает область информации доступа (AIA), в которой записана информация относительно местоположения TDMA, в которой окончательно записана обновленная предопределенная информация. Информация относительно местоположения TDMA, в которой окончательно записана обновленная предопределенная информация, является временной структурой дефектов диска (TDDS). Техническим результатом является сокращение времени доступа для считывания обновленной информации. 2 н.п. ф-лы, 12 ил.

НОСИТЕЛЬ ЗАПИСИ ДЛЯ ЗАПОМИНАНИЯ ИНФОРМАЦИИ О ТИПЕ СВЯЗЫВАНИЯ И СПОСОБ ОБРАБОТКИ ПОВРЕЖДЕННОЙ ОБЛАСТИ С ИСПОЛЬЗОВАНИЕМ ЭТОЙ ИНФОРМАЦИИ

Изобретение относится к области оптических носителей записи. Носитель записи имеет множество непрерывных базовых элементов записи. Предусмотрена область управления поврежденными областями для регистрации списка поврежденных областей. Область связывания выделена непосредственно за одной из поврежденных областей в соответствии с заранее определенной схемой связывания. Также имеется заранее определенная область для запоминания дополнительной информации, указывающей, применима ли заранее определенная схема связывания к области связывания, расположенной непосредственно за упомянутой одной поврежденной областью. Технический результат - возможность связываания при режиме единовременной записи данных в большом количестве. 3 с. и 14 з.п.ф-лы, 5 ил.

УСТРОЙСТВО ДЛЯ ОЧИСТКИ ОПТИЧЕСКИХ ГОЛОВОК СЧИТЫВАНИЯ ИНФОРМАЦИИ С КОМПАКТ-ДИСКОВ ТИПА HD-DVD

Полезная модель относится к области хранения информации на компакт-дисках типа HD-DVD и может быть использована для очистки оптических головок, служащих для считывания информации, преимущественно, с компакт-дисков этого типа. Устройство для очистки оптических головок считывания информации с компакт-дисков типа HD-DVD содержит компакт-диск, совместимый с устройствами считывания информации с компакт-дисков типа HD-DVD, снабженный одним или более чистящим органом, имеющий внутреннюю, нулевую дорожку, содержащую вводную информацию о компакт-диске типа HD-DVD и дорожку с записью программы управления движением оптических головок считывания информации с компакт-дисков типа HD-DVD в процессе очистки. В результате повышается эффективность очистки оптических головок считывания информации с компакт-дисков типа HD-DVD.

ОПТИЧЕСКИЙ НОСИТЕЛЬ ЗАПИСИ И СПОСОБ СЧИТЫВАНИЯ ИНФОРМАЦИИ С ОПТИЧЕСКОГО НОСИТЕЛЯ ЗАПИСИ

Изобретение относится к оптическим носителям информации с высокой плотностью записи информации. Оптический носитель содержит последовательности питов, выполненных в материале упомянутого носителя и расположенных вдоль дорожки записи на носителе, при этом каждый пит содержит N штриховых оптических неоднородностей, где N≥l, причем при N>1 штриховые неоднородности в пределах каждого пита являются параллельными и периодическими и образуют угол θ относительно вектора электрического поля электромагнитной волны считывающего излучения, причем величина угла θ является элементарным источником информации и различается для разных питов. Технический результат - увеличение информационной емкости оптического носителя записи. 2 с. и 6 з.п. ф-лы, 7 ил.

СПОСОБ УПРАВЛЕНИЯ ОБРАБОТКОЙ ДЕФЕКТОВ ДИСКА И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ, А ТАКЖЕ ДИСК ДЛЯ УКАЗАННОГО УСТРОЙСТВА

Изобретение относится к способу управления обработкой дефектов. Способ управления обработкой дефектов носителя записи заключается в записи информации, касающейся дефекта в зоне данных носителя записи в соответствии с i-й операцией записи в виде i-й временной информации о дефектах, по меньшей мере один раз, в зоне временного управления обработкой дефектов носителя записи, где i - индекс; и в записи информации для управления i-й временной информации о дефектах в виде i-й временной информации для управления обработкой дефектов в зоне для временного управления обработкой дефектов, при этом i-я временная информация для управления обработкой дефектов записывается, чтобы включить адрес последнего записанного блока пользовательских данных в зоне данных. Технический результат - управление дефектами на неперезаписываемом носителе. 6 н. и 10 з.п. ф-лы, 14 ил.

УСТРОЙСТВО ДЛЯ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ДАННЫХ В ОТНОШЕНИИ НОСИТЕЛЯ ЗАПИСИ С ОДНОКРАТНОЙ ЗАПИСЬЮ И ЗАПИСЫВАЮЩАЯ СРЕДА С ОДНОКРАТНОЙ ЗАПИСЬЮ

Заявлены устройство для записи и/или воспроизведения временного списка дефектов и носитель записи с однократной записью. Устройство обеспечивает проверку после записи временной области информации о дефекте. Если в кластере этой области, содержащем информацию о дефекте, имеется дефект, то устройство воспроизведения записывает соответствующий блок информации в следующий свободный кластер временной области управления дефектами. При этом устройство записывает во временную область управления дефектами информацию, указывающую положение кластера с информацией о дефекте. 5 н. и 15 з.п. ф-лы, 9 ил.

СПОСОБ МНОГОСЛОЙНОЙ ОПТИЧЕСКОЙ ЗАПИСИ ДВОИЧНОЙ ИНФОРМАЦИИ

Использование: информатика, вычислительная техника, цифровые оптические системы памяти. Сущность изобретения: формируют два когерентных друг другу сфокусированных записывающих пучка оптического излучения и дополнительный оптический пучок. Записывающие пучки модулируют в соответствии с информационным содержанием и совмещают их и дополнительный пучок на требуемом слой объемного носителя информации. Данными пучками экспонируют носитель, производя запись информации, причем глубину интерференционной картины устанавливают меньшей, чем толщина объемного носителя информации. Частоту излучения записывающих пучков устанавливают в области прозрачности материала носителя, а частоту, равную сумме частот излучения дополнительного и записывающих пучков, устанавливают в области максимума спектра поглощения материала носителя, которым может быть материал с двухступенчатым или с двухфотонным поглощением оптического излучения. Для записи информации в других слоях носителя производят относительное перемещение ...

РЕГИСТРИРУЮЩИЙ НОСИТЕЛЬ ИНФОРМАЦИИ, РЕГИСТРИРУЮЩЕЕ УСТРОЙСТВО И ВОСПРОИЗВОДЯЩЕЕ УСТРОЙСТВО

Предложены регистрирующий носитель информации, воспроизводящее устройство и регистрирующее устройство. Носитель включает три или более слоев регистрации информации. Каждый из слоев включает область пробной регистрации. Один из слоев включает в себя область управляющих данных, предназначенную только для воспроизведения. Один из слоев включает области управляющих данных с возможностью регистрации, которые расположены с внутренней и внешней стороны от области пробной регистрации одного из слоев. Каждый из двух или более других слоев включает область пробной регистрации в радиальной позиции, частично перекрывающей радиальную позицию области управляющих данных, предназначенной только для воспроизведения. Каждый из двух или более других слоев включает область с запретом на запись, в которой запись запрещена, в радиальной позиции, частично перекрывающей радиальную позицию области управляющих данных, предназначенной только для воспроизведения. Техническим результатом является снижение влияния области ...

ОПТИЧЕСКИЙ ДИСК, ИМЕЮЩИЙ ИНФОРМАЦИЮ ОБ ОТСЛЕЖИВАЕМОЙ ПОЛЯРНОСТИ, И УСТРОЙСТВА И СПОСОБЫ ДЛЯ ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ НА НЕМ ПОЛЬЗОВАТЕЛЬСКИХ ДАННЫХ

... 1. Оптический диск, содержащий зону посадки диска, начальную зону, зону данных, и внутреннюю служебную зону (ВСЗ) между зоной посадки диска и начальной зоной, и в которой записана информация относительно оптического диска, в котором эта информация считывается перед выполнением отслеживания в зоне данных. 2. Оптический диск по п.1, в котором информация относительно оптического диска представляет собой по меньшей мере одну из информации об отслеживаемой полярности и информации об отражательной способности. 3. Оптический диск по п.2, в котором информация об отслеживаемой полярности и информация об отражательной способности записаны с помощью конфигурации кристаллических или некристаллических меток. 4. Оптический диск по п.2, в котором запись информации об отслеживаемой полярности начинается в ведущих байтах в ВСЗ. 5. Оптический диск по п.4, в котором информация об отслеживаемой полярности записана неоднократно. 6. Оптический диск по п.4, в котором первые два бита ведущих байтов информации ...

ОДНОКРАТНО ЗАПИСЫВАЕМЫЙ НОСИТЕЛЬ, УСТРОЙСТВО И СПОСОБ ЗАПИСИ НА ОДНОКРАТНО ЗАПИСЫВАЕМЫЙ НОСИТЕЛЬ И УСТРОЙСТВО И СПОСОБ ВОСПРОИЗВЕДЕНИЯ ИЯ ОДНОКРАТНОЙ ЗАПИСИ С НОСИТЕЛЯ

... 1. Однократно записываемый носитель, который содержит область данных для того, чтобы записывать в нее данные; область записи информации управления для того, чтобы записывать в нее информацию для управления операцией записи и/или чтения в области данных, область записи информации управления, включающая в себя назначенную область управления дефектами для того, чтобы записывать в нее информацию управления дефектами области данных; множество временных областей управления дефектами, которые являются размещенными по отдельности, для того, чтобы временно записывать в них информацию управления дефектами области данных; и область записи информации о состоянии, в которую записывается информация о состоянии для указания состояния записи одной части или каждой из множества временных размещенных по отдельности областей управления дефектами. 2. Носитель по п.1, в котором область записи информации о состоянии размещается в области записи информации управления. 3. Носитель по п.1, в котором информация ...

НОСИТЕЛЬ ЗАПИСИ С ИНФОРМАЦИЕЙ ДЛЯ ЗАЩИТЫ ОТ КОПИРОВАНИЯ, НАХОДЯЩЕЙСЯ В ЧЕРЕДУЮЩИХСЯ ИЛИ ПЕРЕМЕЖАЮЩИХСЯ УГЛУБЛЕНИЯХ, РАСПОЛОЖЕННЫХ ПО ВОЛНИСТОЙ ЛИНИИ,И УСТРОЙСТВО И СПОСОБЫ ИЗГОТОВЛЕНИЯ, ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ НОСИТЕЛЯ ЗАПИСИ

... 1. Носитель записи вместе с записанными данными, содержащий углубления, сформированные вдоль дорожек, с записанными на них данными, причем данные содержат информацию о защите от копирования, предназначенную для кодирования и/или декодирования, при этом углубления, сформированные на некоторых участках дорожки, смещены относительно центральной линии дорожки влево и/или вправо, чтобы тем самым сформировать перемежающиеся или чередующиеся цепочки углублений, расположенные вдоль волнистой линии, в котором информация о ключе для кодирования и/или декодирования закодирована в конфигурации отклонения указанных углублений, сдвинутых относительно центральной линии дорожки. 2. Носитель записи по п.1, отличающийся тем, что цепочки углублений, расположенные вдоль волнистой линии, находятся на нулевой дорожке информационной области носителя записи. 3. Носитель записи по п.2, отличающийся тем, что цепочки углублений, расположенные вдоль волнистой линии, находятся в области хранения постоянной и управляющей ...

МНОГОСЛОЙНЫЙ ОПТИЧЕСКИЙ ДИСК, ИМЕЮЩИЙ ИНФОРМАЦИЮ ДИСКА

... 1. Носитель записи записываемого типа для записи информации путем записи меток в дорожке на слое записи посредством пучка излучения, входящего через входную поверхность носителя записи, причем метки регистрируются при сканировании дорожки с помощью пучка, носитель записи содержит по меньшей мере первый слой записи (40) и второй слой записи (41), причем первый слой записи находится в положении, более близком ко входной поверхности (47), чем второй слой записи, и прозрачный разделительный слой (42) между слоями записи, причем каждый слой записи содержит канавку предварительной разметки (14), указывающую положение дорожки, причем канавка предварительной разметки проявляет вобуляцию, обусловленную смещениями канавки предварительной разметки в направлении, перпендикулярном продольному направлению дорожки, причем вобуляция проявляет модуляцию вобуляции, представляющую информацию управления, и причем канавка предварительной разметки на первом слое записи (40) проходит спирально в первом направлении ...

ОПТИЧЕСКИЙ ДИСК, ИМЕЮЩИЙ СМЕЩЕННУЮ ЗОНУ ФОКУСИРОВКИ

... 1. Носитель записи записываемого типа для записи информации при помощи записи меток на дорожке на записывающем слое посредством луча излучения, входящего через лицевую сторону носителя записи и образующего пятно сканирования, имеющее эффективный диаметр на дорожке, метки, имеющие длины, соответствующие целому числу длин T битов канала, и самые короткие метки, имеющие длину, равную предварительно определенному минимальному числу d длин T битов канала, для того, чтобы быть детектируемыми посредством пятна сканирования, имеющего упомянутый эффективный диаметр, записывающий слой, содержащий вспомогательную разметку (14) для обозначения дорожки, вспомогательная разметка характеризуется вобуляцией, образованной смещениями вспомогательной разметки в направлении, поперечном к продольному направлению дорожки, и вспомогательная разметка, содержащая модуляцию вспомогательной разметки по глубине и/или ширине области вспомогательной разметки для образования шаблона носителя, содержащего длинные метки ...

ОПТИЧЕСКИЙ ДИСК НЕПЕРЕЗАПИСЫВАЕМОГО ТИПА И СПОСОБ И УСТРОЙСТВО УПРАВЛЕНИЯ ДЕФЕКТНЫМИ ЗОНАМИ НА ОПТИЧЕСКОМ ДИСКЕ НЕПЕРЕЗАПИСЫВАЕМОГО ТИПА С ИСПОЛЬЗОВАНИЕМ ТЕКУЩЕЙ УПРАВЛЯЮЩЕЙ ИНФОРМАЦИИ ДЛЯ ДЕФЕКТНОЙ ЗОНЫ

... 1. Способ управления дефектными зонами на неперезаписываемом носителе записи, для носителя записи содержащего область данных, имеющую резервную зону, способ содержащий (a) обнаружение в ходе операции записи данных наличия дефектной зоны в области данных на носителе, как только данные записаны в область данных; (b) запись данных, записанных в дефектную зону, в резервную зону, если обнаружена дефектная зона; (c) запись временной управляющей информации, имеющей отношение к дефектной зоне, во временную управляющую область на носителе записи; и (d) запись в резервную зону на носителе записи информации о доступе для доступа к временной управляющей информации. 2. Способ по п.1, отличающийся тем, что на шаге (с) записи временную управляющую область, размещают на носителе записи в зоне области данных для данных, не относящихся к пользователю. 3. Способ по п.2, отличающийся тем, что носитель записи содержит первый и второй слои записи, имеющие соответственно первую и вторую области данных, причем ...

СПОСОБ И УСТРОЙСТВО ДЛЯ КОНТРОЛЯ ДЕФЕКТОВ В НОСИТЕЛЯХ ЗАПИСИ И НОСИТЕЛЬ ЗАПИСИ С КОНТРОЛЕМ ДЕФЕКТОВ, ПОЛУЧЕННЫЙ С ИСПОЛЬЗОВАНИЕМ ЭТОГО СПОСОБА

... 1. Носитель записи, содержащий резервную область, хранящую область замещения, которая является заменой для дефектной области носителя записи, и область временного контроля дефектов, хранящую информацию временного контроля, идентифицирующую дефектную область и область замещения, причем информация позиции, относящаяся к дефектной области, записана в область замещения. 2. Носитель записи по п.1, в котором информация временного контроля обновляется в области временного контроля дефектов при каждой операции записи или в качестве реакции на заранее определенное количество операций записи. 3. Носитель записи по п.2, дополнительно содержащий область контроля дефектов (ОКД), в которой записывается информация временного контроля, наиболее недавно обновленная в области временного контроля дефектов. 4. Носитель записи по п.3, в котором ОКД находится в, по меньшей мере, одной из вводной области и выводной области носителя записи. 5. Носитель записи по п.1, в котором в область замещения записана информация ...

ИНФОРМАЦИОННЫЙ НОСИТЕЛЬ ДАННЫХ И СПОСОБ И УСТРОЙСТВО ДЛЯ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ ДАННЫХ НА НЕГО

... 1. Информационный носитель данных, имеющий множество слоев записи, причем каждый слой содержит область данных пользователя, на которой данные записаны посредством головки записи/считывания, причем данные записаны в порядке слоев записи от самого ближнего до самого дальнего от головки записи/считывания, в котором: записываемая область в области данных пользователя первого слоя записи, на котором данные должны быть записаны, является меньшей, чем записываемая область в области данных пользователя второго слоя записи между головкой записи/считывания и первым слоем записи. 2. Информационный носитель данных по п.1, в котором первый слой записи содержит незаписанные области на внутренней и внешней окружностях области данных пользователя, причем каждая незаписанная область соответствует приблизительно половине количества дорожек, через которые луч записи может проходить на второй слой записи, чтобы записывать информацию на первый слой записи. 3. Информационный носитель данных по п.1, в котором ...

ОПТИЧЕСКИ СЧИТЫВАЕМАЯ СРЕДА ХРАНЕНИЯ ДАННЫХ

... 1. Тонкая, гибкая, оптически считываемая среда хранения данных, содержащаятонкую, гибкую подложку, ипо меньшей мере, один тонкий, упруго гибкий, оптически считываемый носитель данных, удерживаемый с возможностью отсоединения на подложке, причем, по меньшей мере, один носитель имеет ось вращения и оптически считываемые дорожки данных в целом, концентричные оси вращения,подложка и, по меньшей мере, один носитель на ней образуют тонкую гибкую слоистую структуру, которая упруго деформируется из, по существу, плоской конфигурации в неплоскую конфигурацию без существенного отделения носителя от подложки и без неблагоприятного влияния на оптическую считываемость, по меньшей мере, одного носителя,по меньшей мере, один носитель приспособлен к удалению с подложки для последующего использования с помощью оптического считывающего устройства, которое способно вращать, по меньшей мере, один носитель для считывания дорожек данных на носителе.2. Среда хранения данных по п.1, в которой, по меньшей мере, ...

ОБЪЕМНЫЙ ИДЕНТИФИКАТОР КОМПАКТ-ДИСКА

Объемный идентификатор компакт-диска в пластмассовом или ином материале массива тела компакт-диска представлен инородными дискретными физическими элементами, способными изменять свои свойства в процессе локального электромагнитного воздействия, или из того же материала, что и тело компакт-диска, и отличается тем, что физические включения размещены в индивидуальном порядке в массиве тела компакт-диска, или изменение плотности массива компакт-диска осуществлено так, что при подаче светового или иного излучения от источника в плоскости массива компакт-диска с внутренней части к наружной на приемнике или системе приемников, размещенных по наружной части массива тела компакт-диска, порождают индивидуальные блики, тени исходного электромагнитного излучения источника. 4 ил.

НОСИТЕЛЬ ОДНОКРАТНОЙ ЗАПИСИ И СПОСОБ И УСТРОЙСТВОУПРАВЛЕНИЯ ДЕФЕКТНОЙ ЗОНОЙ ДЛЯ НОСИТЕЛЯ ОДНОКРАТНОЙ ЗАПИСИ

... 1. Способ управления дефектами на оптическом носителе однократной записи, имеющем, как минимум, один записывающий слой, включающий следующие шаги: выделение на оптическом носителе записи, как минимум, одной замещающей зоны и нескольких временных зон управления дефектами, причем указанные временные зоны управления дефектами создают раздельно; и запись информации управления дефектами, как минимум, в одну из временных зон управления дефектами. 2. Способ управления по п.1, в котором на шаге выделения, как минимум, одну из нескольких временных зон управления дефектами выделяют во внутренней кольцевой области оптического носителя записи и, как минимум, одну из нескольких временных зон управления дефектами выделяют во внешней кольцевой области оптического носителя записи. 3. Способ управления по п.1, в котором на шаге выделения одну из нескольких временных зон управления дефектами создают в начальной области оптического носителя записи и одну из нескольких временных зон управления дефектами создают ...

НОСИТЕЛЬ ЗАПИСИ, СОДЕРЖАЩИЙ МНОЖЕСТВО НАБОРОВ ПАРАМЕТРОВ ЗАПИСИ

... 1. Оптический носитель записи, пригодный для записи на него информации посредством облучения носителя записи лучом импульсного излучения, носитель записи включает в себя область, содержащую управляющую информацию, характеризующую процесс записи, посредством которого информация может быть записана на носитель записи, при этом управляющая информация содержит значения параметров записи для этого процесса записи, носитель записи отличается тем, что управляющая информация содержит первый набор параметров записи для процесса записи, осуществляемого в первом диапазоне скоростей записи, и второй набор параметров записи для процесса записи, осуществляемого во втором диапазоне скоростей записи. 2. Носитель записи по п.1, в котором первый диапазон скоростей записи частично перекрывает второй диапазон скоростей записи. 3. Носитель записи по п.1 или 2, в котором, по меньшей мере, часть из параметров записи определяет последовательность импульсов луча импульсного излучения. 4. Носитель записи по п.1 ...

СПОСОБ ЗАПОМИНАНИЕ С ДВОЙНЫМ ПРОТОКОЛИРОВАНИЕМ И НОСИТЕЛЬ ДАННЫХ ДЛЯ НЕГО

... 1. Способ запоминания с двойным протоколированием для запоминания данных на носителе данных, отличающийся тем, что данные запоминают по направлению от начальных и конечных ячеек памяти носителя данных к центральной части. 2. Способ запоминания с двойным протоколированием по п.1, по которому в случае, когда в носителе данных запоминают два типа данных, вид и характеристики которых различны, два типа данных по отдельности запоминают в качестве данных переднего протоколирования и тыльного протоколирования соответственно. 3. Способ запоминания с двойным протоколированием по п.2, по которому в случае, когда данные переднего протоколирования и данные тыльного протоколирования встречаются друг с другом в центральной ячейке памяти, данные вновь запоминают от начальной ячейки памяти и конечной ячейки памяти соответственно. 4. Способ запоминания с двойным протоколированием по п.2, по которому в случае, если заголовок данных переднего протоколирования и заголовок данных тыльного протоколирования встречаются ...

ОПТИЧЕСКИЙ ЗАПИСЫВАЮЩИЙ НОСИТЕЛЬ ДАННЫХ, СПОСОБ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ ДАННЫХ НА/С ОПТИЧЕСКОГО ЗАПИСЫВАЮЩЕГО НОСИТЕЛЯ ДАННЫХ И УСТРОЙСТВО ДЛЯ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ ДАННЫХ НА/С ОПТИЧЕСКОГО ЗАПИСЫВАЮЩЕГО НОСИТЕЛЯ ДАННЫХ

... 1. Оптический записывающий носитель данных, содержащий область данных и область эталонных сигналов, в которую эталонные сигналы записываются на основе оптимальных условий записи, определенных для оптимальной записи/воспроизведения данных на/с области данных оптического записывающего носителя данных. 2. Оптический записывающий носитель данных по п.1, в котором эталонные сигналы удовлетворяют заранее заданным условиям амплитудной модуляции. 3. Оптический записывающий носитель данных по п.1, в котором эталонные сигналы удовлетворяют заранее заданным условиям дрожания. 4. Оптический записывающий носитель данных по п.1, в котором область эталонных сигналов расположена в записываемой области начальной области или конечной области на каждой стороне области данных на оптическом записывающем носителе данных. 5. Оптический записывающий носитель данных по п.1, который также содержит один или более записывающих слоев, при этом область эталонных сигналов располагается на каждом из записывающих слоев ...

СПОСОБ ЗАПИСИ И УСТРОЙСТВО ЗАПИСИ НА НОСИТЕЛЬ ОПТИЧЕСКОЙ ЗАПИСИ

... 1. Способ записи на носитель записи для формирования меток и площадок на записывающей поверхности носителя записи путем облучения записывающей поверхности носителя записи пучком излучения, причем пучок излучения для каждой метки, подлежащей записи, настраивают на, по меньшей мере, один постоянный или импульсный уровень мощности записи (Рw), достаточный для формирования метки, в течение периода (31) метки, и для каждой площадки между метками - на, по меньшей мере, один нижний уровень мощности (Р0 ), недостаточный для формирования метки, в течение периода (32) площадки, отличающийся тем, что нижний уровень мощности (Р0) повышают до промежуточного уровня мощности (Pi) в течение промежуточного периода (34). 2. Способ записи на носитель записи по п.1, отличающийся тем, что промежуточный уровень мощности (Pi) устанавливают от 1,5 до 6, в частности, от 2 до 4 раз превышающим нижний уровень мощности (Р0). 3. Способ записи на носитель записи по п.1 или 2, отличающийся тем, что в течение начального ...

СПОСОБ ЗАПИСИ ДАННЫХ НА ОПТИЧЕСКОМ НОСИТЕЛЕ ЗАПИСИ И УСТРОЙСТВО ВОСПРОИЗВЕДЕНИЯ ДАННЫХ С ОПТИЧЕСКОГО НОСИТЕЛЯ ДАННЫХ

... 1. Способ записи данных на оптическом носителе записи, при этом способ включает в себя этапы, на которых: ! обнаруживают последовательные дефектные блоки на оптическом носителе записи; и формируют запись списка последовательных дефектов содержащую начальную и конечную записи, соответственно, соответствующие первому и последнему дефектным блокам среди последовательных дефектных блоков. ! 2. Устройство для воспроизведения данных с оптического носителя данных содержащее головку записи и считывания, которая испускает и принимает луч для передачи данных относительно носителя, ! контроллер осуществляет управление головкой записи и считывания для считывания информации о состоянии, касающейся дефекта, включенного в информацию, касающуюся дефекта соответствующего дефектному блоку в области пользовательских данных, из предварительно определенной области в оптическом носителе записи, и для считывания блока замещения для замещения дефектного блока из предварительно определенной области в оптическом ...

НОСИТЕЛЬ ЗАПИСИ, ИМЕЮЩИЙ СТРУКТУРУ ДАННЫХ ДЛЯ УПРАВЛЕНИЯ, ПО КРАЙНЕЙ МЕРЕ, ОБЛАСТЬЮ ДАННЫХ НОСИТЕЛЯЗАПИСИ, И СПОСОБЫ И УСТРОЙСТВА ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ

... 1. Носитель записи, имеющий структуру данных для управления областью данных носителя записи, содержащий временную зону управления дефектами, в которой хранится первый блок данных, причем первый блок данных включает в себя информацию о последовательной записи и временную структуру определения, информация о последовательной записи предоставляет информацию о зонах непрерывной записи в области данных носителя записи, а временная структура определения содержит, как минимум, один указатель информации во временной зоне управления дефектами. 2. Носитель записи по п.1, в котором первый блок данных имеет размер, как минимум, один кластер. 3. Носитель записи по п.2, в котором один сектор первого блока данных отдано временной структуре определения, и не больше чем 31 сектор первого блока данных отданы информации о последовательной записи. 4. Носитель записи по п.3, в котором первый сектор информации о последовательной записи расположен рядом с временной структурой определения. 5. Носитель записи по ...

СПОСОБ ЗАПИСИ ИНФОРМАЦИИ, ЗАПИСЫВАЕМЫЙ НОСИТЕЛЬ ИНФОРМАЦИИ И СПОСОБ ЗАПИСИ И ВОСПРОИЗВЕДЕНИЯ И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

... 1. Способ записи информации вобуляции на записываемый носитель информации, который включает в себя этапы, на которых выбирают систему записи; и формируют направляющую спиральную дорожку, имеющую информацию вобуляции, где вобуляция начинает свое первое вобуляционное отклонение по направлению к внутренней стороне носителя в случае, когда выбранная система записи является системой записи в бороздках, или направляющую спиральную дорожку, имеющую информацию вобуляции, где вобуляция начинает свое первое вобуляционное отклонение по направлению к внешней стороне носителя в случае, когда выбранная система записи является системой записи на площадках. 2. Способ по п.1, в котором записываемый носитель информации имеет множество записываемых слоев, выбор системы записи осуществляется для каждого слоя, и направляющая спиральная дорожка, имеющая информацию вобуляции, формируется для каждого слоя на основе выбранной системы записи. 3. Записываемый носитель информации с системой записи в бороздки, в котором ...

Оптический диск и устройство дисковода для оптического диска

... 1. Оптический диск, содержащий зону данных, в которой записываются сигналы информации, зону ввода и зону вывода, предусмотренные перед и после зоны данных, и зону памяти программы для временного хранения адресной информации, необходимой для дополнительной записи информационных сигналов, отличающийся тем, что по меньшей мере один из субкода Q зоны ввода и субкода Q зоны памяти программы снабжен информацией идентификации для идентификации этого субкода. 2. Оптический диск по п.1, отличающийся тем, что информация идентификации предусмотрена по меньшей мере в данных адреса (ADR), и/или в данных номера дорожки (TNO), и/или в нулевых данных (ZERO), составляющих субкод Q зоны ввода и/или зоны памяти программы. 3. Оптический диск по п.1, отличающийся тем, что информация идентификации, предусмотренная в субкоде Q зоны ввода и/или в субкоде Q зоны памяти программы, содержит информацию включающую по меньшей мере 2 бита. 4. Оптический диск по п.1, отличающийся тем, что содержит канавку качания дорожки ...

ЭЛЕКТРОННОЕ УСТРОЙСТВО С БЛОКОМ НОСИТЕЛЯ ИНФОРМАЦИИ, НАПРИМЕР, ДИСКА, УСТРОЙСТВО С ПОСТОЯННОЙ ПАМЯТЬЮ НА КОМПАКТ-ДИСКЕ, УСТРОЙСТВО И СПОСОБ ОБРАБОТКИ ИНФОРМАЦИИ, НОСИТЕЛЬ ИНФОРМАЦИИ

Электронное устройство, например игровое устройство, которое может сократить время считывания визуально распознаваемой информации обозначения, сформированной на постоянном запоминающем устройстве на компакт-диске (ПЗУ-КД), и которое может обеспечивать защиту и эффективно устранять или исключать поддельные продукты. Электронное устройство содержит блок установки ПЗУ-КД, в котором должно быть установлено ПЗУ-КД с визуально распознаваемой информацией обозначения, блок обнаружения информации, обнаруживающий специальную информацию, выбранную из блочной информации, состоящей из информации обозначения, и блок сравнения, хранящий основные данные D, соответствующие подлежащим сравнению данным А, блок сравнения сравнивает специальную информацию с подлежащими сравнению данными А, соответствующими основным данным D , и вырабатывает выходной сигнал результата сравнения.

СПОСОБ ДЛЯ ЗАПИСИ ИНФОРМАЦИИ НА НОСИТЕЛЕ ЗАПИСИ, СПОСОБ ВОСПРОИЗВЕДЕНИЯ ИНФОРМАЦИИ С НОСИТЕЛЯ ЗАПИСИ, СПОСОБ МОДИФИЦИРОВАНИЯ ДАННЫХ НА НОСИТЕЛЕ ЗАПИСИ

... 1. Способ записи и/или редактирования звуковых, видео и/или информационных данных на перезаписываемом носителе записи содержащий следующие этапы: записывают идентификационный код изготовителя записывающего устройства, которое последним модифицировало данные носителя записи при осуществлении записи/редактирования на носитель записи. 2. Способ по п.1, отличающийся тем, что дополнительно содержит этап, при котором осуществляют запись идентификационного кода продукта записывающего устройства изготовителя, которое последним модифицировало данные носителя записи при осуществлении записи/редактирования на носитель записи. 3. Способ записи/воспроизведения звуковых, видео, и/или информационных данных на перезаписываемом носителе записи с записывающим/воспроизводящим устройством с использованием информации изготовителя, записанной на носителе записи, содержащий следующие этапы: проверяют соответствие идентификационного кода изготовителя указанного устройства, которое последним модифицировало данные ...

СИСТЕМА НА ОПТИЧЕСКИХ ДИСКАХ

... 1. Способ перемещения блока каретки из начального положения в конечное положение относительно носителя информации, характеризуемого центром и окружностью и вращающегося относительно упомянутого блока каретки с окружной скоростью вокруг упомянутого центра, отличающийся тем, что включает в себя следующие операции: определение первого радиального расстояния между упомянутым начальным положением упомянутого блока каретки и упомянутым центром упомянутого носителя информации; определение второго радиального расстояния между упомянутым конечным положением упомянутого блока каретки и упомянутым центром упомянутого носителя информации; определение расстояния по окружности между упомянутым начальным положением упомянутого блока каретки и упомянутым конечным положением упомянутого блока каретки параллельно упомянутой окружности упомянутого носителя информации; определение начальной окружной скорости упомянутого носителя информации вокруг упомянутого центра упомянутого носителя; определение траектории ...

ДИСКООБРАЗНЫЙ ОПТИЧЕСКИЙ НАКОПИТЕЛЬ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Дискообразный накопитель двоичной информации, которая последовательно записана вдоль спиральной дорожки в виде питов и лэндов, считываемых лазерным лучом по интерференционному принципу, можно маркировать так, что его нельзя будет спутать с подделкой и подделать за счет того, что выбранное число лэндов выполняют в оптической базисной поверхности в виде углублений, плоских по сравнению с глубиной питов. Эта маркировка, в принципе, любой формы может быть настолько маленькой, что ее можно обнаружить только электронным микроскопом, а также такой большой, что ее можно увидеть простым глазом при смешанном свете.

СПОСОБ ОРГАНИЗАЦИИ НОСИТЕЛЯ ЗАПИСИ ЦИФРОВЫХ ДАННЫХ, УСТАНОВКА УЧАСТКА ИХ ЗАПИСИ, СПОСОБ И УСТРОЙСТВО ЗАПИСИ ИХ НА НОСИТЕЛЕ, НОСИТЕЛЬ ЗАПИСИ И/ИЛИ ВОСПРОИЗВЕДЕНИЯ ЦИФРОВЫХ ДАННЫХ, КОМПЬЮТЕРНАЯ СИСТЕМА ДЛЯ ЗАПИСИ ЦИФРОВЫХ ДАННЫХ НА НОСИТЕЛЕ

В случае записи компьютерных данных, например, в пакеты 16 - 27 участка записи данных, область пакетов 16 - 27 обеспечивается в качестве пригодной области в таблице организации / таблице частей U - ТОС. Например, в таблице частей под номером 02h такие компьютерные данные записываются в виде сегмента, в котором пакет 16 служит в качестве начального адреса, а пакет 27 - конечного адреса. С целью выполнения организации режима компьютерных данных отдельно обеспечивается FAT (таблица размещения файлов). В этой таблице выполняется организация режимов записи пакетов 16 - 27. Таким образом, компьютерные данные можно записать на мини-диск звуковых данных.

СПОСОБ УПРАВЛЕНИЯ ИНФОРМАЦИЕЙ ДЛЯ ЗАЩИТЫ ОТ КОПИРОВАНИЯ НОСИТЕЛЯ ЗАПИСИ

... 1. Способ управления информацией для защиты от копирования носителя записи, содержащий шифрование потока данных на основе информации для защиты от копирования и запись указанного потока данных в области данных носителя записи; и запись в первой конкретной области носителя записи идентификатора дисковода, определенного в дисководе, который записывает поток данных, где вышеуказанная информация для защиты от копирования предварительно записывается в первой конкретной области, а скрытый код для расшифрования информации защиты от копирования предварительно записывается во второй конкретной области носителя записи. 2. Способ по п.1, в котором носителем записи является оптический диск однократной записи или перезаписываемый оптический диск. 3. Способ по п.1, в котором скрытый код записывается в форме извилины, имеющей низкочастотную составляющую, так, что он не может быть скопирован с использованием бита для побитового копирования. 4. Способ по п.1, в котором поток данных, зашифрованный на основе ...

ДИСКООБРАЗНЫЙ ОПТИЧЕСКИЙ НАКОПИТЕЛЬ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Дискообразный накопитель двоичной информации, которая последовательно записана вдоль спиральной дорожки в виде питов и лэндов, считываемых лазерным лучом по интерференционному принципу, можно маркировать так, что его нельзя будет спутать с подделкой и подделать за счет того, что выбранное число лэндов выполняют в оптической базисной поверхности в виде углублений, плоских по сравнению с глубиной питов. Эта маркировка, в принципе, любой формы может быть настолько маленькой, что ее можно обнаружить только электронным микроскопом, а также такой большой, что ее можно увидеть простым глазом при смешанном свете.

МНОГОСЛОЙНЫЙ ОПТИЧЕСКИЙ ДИСК С МОДУЛЯЦИЕЙ ПРЕДВАРИТЕЛЬНОЙ РАЗМЕТКИ

... 1. Носитель записи записываемого типа для записи информации посредством нанесения меток на дорожку в записываемой области записывающего слоя c помощью пучка излучения входящего через входную поверхность носителя записи, причем метки детектируются при сканировании дорожки посредством луча по изменениям излучения первого типа, при этом носитель записи содержит по меньшей мере, первый записывающий слой (40) и второй записывающий слой (41), причем первый записывающий слой расположен ближе к входной поверхности, чем второй записывающий слой, и по меньшей мере, один прозрачный промежуточный слой (42) между записывающими слоями, и каждый слой содержит предварительную разметку (14), указывающую положение дорожки, причем предварительная разметка проявляет вобуляцию, образованную смещениями предварительной разметки в направлении, противоположном осевому направлению дорожки, при этом вобуляция проявляет модуляцию вобуляции для представления информации о физическом адресе, указывающей физическое положение ...

ИНФОРМАЦИОННАЯ ЗАПОМИНАЮЩАЯ СРЕДА И СПОСОБ ЗАПИСИ/ВОСПРОИЗВЕДЕНИЯ ДЛЯ НЕЕ

... 1. Информационная запоминающая среда для использования с устройством записи и/или воспроизведения, содержащая область пользовательских данных, в которую записывают пользовательские данные и которая имеет первые синхронизирующие комбинации; и область дополнительных данных, расположенную по меньшей мере в одной из областей перед и после области пользовательских данных и имеющую вторые синхронизирующие комбинации, в которой вторые синхронизирующие комбинации отличаются от первых синхронизирующих комбинаций, так что устройство записи и/или воспроизведения отличает область пользовательских данных от области дополнительных данных в соответствии с первыми и вторыми синхронизирующими комбинациями. 2. Информационная запоминающая среда по п.1, в которой по меньшей мере одна из первых и вторых синхронизирующих комбинаций размещается во множестве местоположений, и одинаковые синхронизирующие комбинации скомпонованы таким образом, что соседние пары одинаковых синхронизирующих комбинаций отделены равными ...

СПОСОБ И УСТРОЙСТВО ДЛЯ СОХРАНЕНИЯ СОСТОЯНИЯ ЗАПИСИ ДАННЫХ НОСИТЕЛЯ ОДНОКРАТНОЙ ЗАПИСИ И НОСИТЕЛЬ ОДНОКРАТНОЙ ЗАПИСИ ДЛЯ НИХ

... 1. Способ сохранения состояния записи данных носителя записи, заключающийся в том, что записывают данные на носитель записи; генерируют данные о состоянии записи, представляющие занятые области носителя записи, и записывают данные о состоянии записи во временную область управления дефектом, выделенную на носителе записи; принимают команду финализации для сохранения данных о состоянии записи данных носителя записи; и записывают заданные данные во временную область управления дефектом в ответ на команду финализации для предотвращения дополнительной записи данных на носитель записи. 2. Способ по п.1, в котором запись заданных данных дополнительно содержит этапы, на которых копируют временные управляющие данные, в том числе данные о состоянии записи, финально записанные во временную область управления дефектом, и записывают скопированные временные управляющие данные в область управления дефектом на носителе записи в ответ на команду финализации. 3. Способ по п.2, в котором дополнительно предотвращают ...

УСТРОЙСТВО, НОСИТЕЛЬ ИНФОРМАЦИИ И СПОСОБ ЗАПИСИ ИНФОРМАЦИИ

... 1. Устройство для записи информации на дорожку (9) носителя (11) информации, содержащего информационную область диска с информацией о носителе (11) информации, причем устройство содержит средство (35) считывания информации диска для считывания информационной области диска, отличающееся тем, что средство (35) считывания информации диска выполнено с возможностью считывания, по меньшей мере, одного расширенного информационного блока в информационной области диска, причем указанный расширенный информационный блок содержит, по меньшей мере, один дополнительный параметр и индикатор номера версии блока, характеризующий описание дополнительного параметра. 2. Устройство по п. 1, отличающееся тем, что средство (35) считывания информации диска выполнено с возможностью считывания информационной области диска носителя (11) информации, причем информационная область диска содержит расширенные индикаторы информации, указывающие наличие и местоположение расширенных информационных блоков. 3. Устройство по ...

Фотофонограф

Datenaufzeichnungsgerät und -verfahren

Schreib-/Lesevorrichtung für optische Information

Gerät zum Aufzeichnen von Signalen auf einer optischen Speicherplatte und Verwendung einer solchen Speicherplatte

Zusammengesetzte Objektivlinse mit zwei Brennpunkten und Vorrichtung mit dieser Linse

Optische Platte, Aufzeichnungsverfahren und -vorrichtung sowie Wiedergabevorrichtung dafür

Optisches Informationsmedium und Aufzeichnungsverfahren dafür

Optische Karte und Apparat um hierauf Daten zu schreiben und zu lesen.

Optisches Aufzeichnungsmedium und optisches Aufzeichnungs/Wiedergabegerät

Zweiseitige Hybrid-DVD-CD-Disk

AUFZEICHNUNGSTRAEGER MIT EINER OPTISCH AUSLESBAREN INFORMATIONSSTRUKTUR UND VORRICHTUNG ZUM AUSLESEN DESSELBEN

ZUSÄTZLICHER DATENKANAL ZWISCHEN MARKIERUNGEN

SUBSTRAT FÜR BENUTZUNG OPTISCHEN AUFZEICHNUNGS-/WIEDERGABEMEDIUMS, HERSTELLUNGSVERFAHREN FÜR EIN OPTISCHES AUFZEICHNUNGS-/WIEDERGABEMEDIUM, PRODUKTIONSSTEMPEL UND PRODUKTIONSSTEMPEL FÜR OPTISCHES AUFZEICHNUNGS-/WIEDERGABEMEDIUM

AUFZEICHNUNGSVERFAHREN EINES OPTISCHEN AUFZEICHNUNGSMEDIUMS

Aufzeichnungsmedium mit Datenbereich mit geraden Pits für Hauptdaten und Einführungsbereich mit gewobbelten Pits für Steuerungsinformationen

OPTISCHES INFORMATIONSMEDIUM UND GERAET ZUM WIEDERGEBEN VON INFORMATIONEN VON EINEM, UND/ODER AUFZEICHNEN VON INFORMATIONEN AUF EIN DERARTIGES MEDIUM.

Optisches Aufzeichnungselement.

OPTISCHE PLATTE UND REGELUNG DER BEWEGUNG DEREN OPTISCHEN LICHTPUNKTES.

Optische Platte und Plattengerät zum Aufzeichnen oder Wiedergeben von Daten in oder von der Platte

VORRICHTUNG ZUR WIEDERGABE AUF EINEM TRAEGER GESPEICHERTER SIGNALE, AUFZEICHNUNGSVERFAHREN FUER EINEN TRAEGER SOWIE TRAEGER ZUR WIEDERGABE MIT DER VORRICHTUNG

Optische Platte und optisches Plattenwiedergabegerät

Benutzer-definierte Daten in einem unbenutzten Bereich von Datenspeichermedien

Optisches Aufzeichnungsgerät

AUTHENTIFIZIERBARER OPTISCHER DATENTRÄGER, SYSTEM ZUM AUTHENTIFIZIEREN EINES OPTISCHEN DATENTRÄGERS UND VERFAHREN DAFÜR

CHEN SPEICHERSYSTEM

Apparat und Verfahren zum Belichten einer optischen Mutterplatte

Gerät zum Lesen und/oder Schreiben von Datenmarkierungen eines optischen Aufzeichnungsträgers

Die vorliegende Erfindung betrifft ein Gerät zum Lesen und/oder Schreiben von Daten-Markierungen (25) eines optischen Aufzeichnungsträgers (1), welcher entlang einer Spur (20) angeordnete Daten-Markierungen (25) und seitlich versetzt zur Mitte dieser Spur (20) angeordnete Header-Markierungen (25') aufweist. Das Gerät weist einen Signalformer (4), eine Header-Erkennungs-Einheit (9) und eine von dieser angesteuerte Schalter-Einheit (6) auf. DOLLAR A Aufgabe der Erfindung ist es, das Auslesen von Daten und Header-Markierungen mit möglichst niedriger Fehlerrate zu ermöglichen. DOLLAR A Das erfindungsgemäße Gerät weist dazu einen Schwellwertbildner (5) und eine Speichereinheit (7) mit mindestens zwei Speicherplätzen (M01, M02, M11, M12, M21, M22) auf, wobei mittels der Schalter-Einheit (6) der Eingang der Speichereinheit (7) mit dem Ausgang des Schwellwertbildners (5) und deren Ausgang mit einem Schwellwert-Eingang des Signalformers (4) verbindbar ist. Das erfindungsgemäße Gerät eignet sich ...

WIEDERBESCHREIBBARE CD UND DEREN HERSTELLUNGSVERFAHREN

Lichttonaufzeichnung in Zackenschrift

Double-layer optical storage medium

A novel optical storage medium consists of a transparent substrate (14) having a surface pit pattern (15) and bearing a sequence of a partially reflective antimony sulphide layer (16), a transparent interlayer (18) and a highly reflective layer (20). Preferably, the medium is a disk having a substrate surface data pit pattern (15) and a second data pit pattern (19) located between the interlayer and the highly reflective layer, the patterns optionally having different formats for use with different disk drives employing different laser beam wavelengths. Also claimed is an optical storage system comprising the above storage medium (12), a laser (30) for focussed beam passage into the medium through the substrate, a laser beam focal point adjuster for focussing the beam on the partially reflective layer or the highly reflective layer, and a photodetector (32) for detecting the output reflected laser beam.

AUFZEICHNUNG ZUSÄTZLICHER DATEN MIT VERBINDENDEN RAHMEN UND VERSCHIEDENEN SYNCHRONISATIONSSIGNALEN

Optisches Plattengerät

Information reproduction device and information reproduction method

A process of reproducing information according to the present invention includes: reproducing record data recorded on an information-recording medium including a data area for recording the record data, and a defect control area for recording defect information of the data area; storing the defect information in a storage unit; and reducing a storage area of the storage unit which is used for storing the defect information.

Method and apparatus for managing disc defects using updateable dma, and disc thereof

A reproducing apparatus is provided. The reproducing apparatus includes a recording/reading unit that records data on or reads data from a disc including a defect management area in which defect information regarding data recorded in a data area of the disc and defect management information for managing the defect information are repeatedly recorded, and a controller that controls the recording/reading unit to read the defect information and the defect management information from the defect management area, and read data from the disc using the defect information. First defect information, which is repeatedly recorded, includes second defect information which is recorded in a predetermined area and defect information regarding a defective block occurring after the second defect information is recorded. The defect management information includes location information of the defect information.

Systems and Methods for Efficient Data Storage

Various embodiments of the present invention provide systems and methods for preparing and accessing super sector data sets. As an example, a data storage system including a storage medium is disclosed. The storage medium includes a first servo data region and a second servo data region separated by a user data region. The user data region includes at least a portion of a first codeword and a portion of a second codeword that are together associated with a common header data.

Recording medium, reproduction and recording method, reproduction and recording device

Obtain an expanded address without altering the bit number of an address which is embedded in a wobble. Generate a virtual bit which is not recorded on a disc, and which is expressed by the disparity from the rules and the presence or absence of information embedded in part or all of the wobble address.

Information Recording Medium, Method and Apparatus for Recording and Reproducing Information

An information recording medium includes a lead-in area and a data area for storing contents information. The lead-in area includes a first lead-in information area and a second lead-in information area. The first lead-in information area corresponds to a first playback mode. The second lead-in information area corresponds to a second playback mode different from the first playback mode. The first lead-in information area has a first depth and is designed for storing lead-in information related to the contents information stored in the data area. The second lead-in information area includes pre-pits having a second depth greater than the first depth. The pre-pits represent predetermined information, such as information of copyright protection, related to the contents information stored in the data area. 130-. (canceled)31. An information recording medium comprising:a lead-in area;a lead-in information area located in the lead-in area;a data area for storing user information;a first groove area having a groove; anda second groove area having a groove;wherein the lead-in information area is an area which has a first physical characteristic and which includes an embossed area representing lead-in information for recording or reproducing user information on or from the data area;wherein the data area has a second physical characteristic; andwherein the first groove area continuously connects with a front side of the embossed area, and the second groove area continuously connects with a rear side of the embossed area.32. A method of reproducing user information from the information recording medium of claim 31 , comprising the steps of:accessing lead-in information in the lead-in information area of the information recording medium; andreproducing user information from the data area of the information recording medium in accordance with the accessed lead-in information.33. An apparatus for reproducing user information from the information recording medium of claim 31 , ...

OPTICAL RECORDING MEDIUM, MANUFACTURING METHOD FOR OPTICAL RECORDING MEDIUM

The present disclosure relates to an optical recording medium and a manufacturing method for an optical recording medium capable of obtaining an appropriate reproduction signal, as a bar code-shaped recording region (BCA) on an optical recording medium. 1. An optical recording medium formed with a bar code-shaped reflection pattern by forming a high reflection rate region and a low reflection rate region , which appear alternately when seen in a track line direction , in such a state that each is continuous in a track pitch direction , the optical recording medium comprising a recording region in which information is recorded with the reflection pattern ,wherein the low reflection rate region is formed with a pit string, andthe high reflection rate region and the low reflection rate region are formed to satisfy: S+M/2≦0.6H, where a signal level of a reproduction signal obtained from a reflection light in the high reflection rate region is denoted as “H”, a signal level of a reproduction signal obtained from a reflection light in the low reflection rate region is denoted as “S”, and a degree of modulation of the reproduction signal obtained from the reflection light in the low reflection rate region is denoted as “M”.2. The optical recording medium according to claim 1 , wherein the optical recording medium is a disk-shaped optical recording medium claim 1 , and the high reflection rate region and the low reflection rate region are formed such that each is continuous radially in a radial direction which is the track pitch direction claim 1 , whereby the bar code-shaped reflection pattern is formed.3. The optical recording medium according to claim 1 , wherein reproduction is performed with a laser light having a wavelength of 405 nm emitted by an optical system of which NA is 0.85 claim 1 , andin the low reflection rate region, a spatial frequency in the track line direction is formed with pit strings of 1667 lines/mm or more.4. The optical recording medium according ...

RECORDING MEDIUM FOR LONG-TERM DATA RETENTION, RECORDING METHOD, AND RECORDING/REPRODUCING APPARATUS

Provided are recording media, recording/reproducing apparatuses, and recording methods for use in long-term data retention. Recording medium information may be copied and stored in a new information zone in a data area. Accordingly, if medium recognition of a lead-in area and/or a lead-out area fails, a recording medium may be recognized using the data recorded in the new information zone. 1. A recording medium comprising a lead-in area , a data area , and a lead-out area ,wherein the data area comprises:a non-recording zone allocated adjacent to at least one of the lead-in area and the lead-out area; andan information zone allocated at an inner side of the non-recording zone and toward a center of the data area, the information zone for recording information about the recording medium.2. The recording medium of claim 1 , wherein the non-recording zone is allocated adjacent to each of the lead-in area and the lead-out area.3. The recording medium of claim 2 , wherein the information zone is allocated at an inner side of the non-recording zone adjacent to the lead-in area.4. The recording medium of claim 2 , wherein the information zone is allocated at an inner side of the non-recording zone adjacent to the lead-out area.5. The recording medium of claim 1 , wherein the information about the recording medium is recorded in at least one of the lead-in area and the lead-out area and is also copied and stored in the information zone.6. The recording medium of claim 1 , wherein the non-recording zone covers about 30% of the recording medium from its inner and/or outer circumference.7. The recording medium of claim 6 , wherein the information zone is not allocated in the 30% of the recording medium from its inner and/or outer circumference.8. A recording/reproducing apparatus comprising:an optical pickup configured to irradiate light onto a recording medium to record data thereon;a memory configured to store information about ranges of a valid data area and a new ...

METHOD OF MAKING A MULTI-CHANNEL TIME BASED SERVO TAPE MEDIA

A thin film magnetic recording head is fabricated by forming a substrate from opposing ferrite blocks which have a ceramic member bonded between them. This structure is then diced to form a plurality of columns, wherein each column has a ferrite/ceramic combination. Each column represents a single channel in the completed head. A block of ceramic is then cut to match the columned structure and the two are bonded together. The bonded structure is then cut or ground until a head is formed, having ceramic disposed between each channel. A ferrite back-gap is then added to each channel, minimizing the reluctance of the flux path. The thin film is patterned on the head to optimize various channel configurations. 151-. (canceled)52. A method of formatting magnetic tape media comprising energizing a plurality of recording channels of a surface thin film magnetic recording head by way of a separate electrically conductive coil for each recording channel , wherein at least one of the plurality of channels is energized with electrical pulses consistent with a timing-based servo pattern of different timing than at least one other of the plurality of channels.53. The method of claim 52 , wherein the recording channels are magnetically isolated.54. The method of claim 53 , wherein the recording channels are magnetically isolated by substantially magnetically impermeable material.55. The method of claim 54 , wherein the recording channels are magnetically isolated at least in part by gaps in a surface thin film of the surface thin film magnetic recording head.56. A method of formatting magnetic tape media comprising independently energizing a plurality of independent and magnetically isolated timing-based recording channels of a surface thin film magnetic recording head with different electrical signals which would cause cross-talk interference if not for the independent and magnetically isolated channels.57. The method of claim 56 , wherein the different electrical signals are ...

METHOD AND DEVICE TO IMPROVE START-UP PERFORMANCE OF A MULTI-LAYER OPTICAL DISC

A method comprising recording data related to a start-up procedure on at least one of a plurality of recording layers disposed on an optical record carrier for reading back the recorded data during subsequent start-ups, the selection of the at least one recording layer based on properties of the at least one recording layer is disclosed. The technique reduces the optical record carrier start-up time and is useful for DVD, HD-DVD and BD recorders and/or players. 1. A method for recording data related to a start-up procedure on at least one of a plurality of recording layers disposed on an optical record carrier , the method comprising:selecting at least one recording layer based on one or more properties of the at least one recording layer, the properties of the at least one recording layer on which the selection is based including at least the repeated-read stability of recorded data; andrecording the data related to the start-up procedure on the selected at least one recording layer for reading back the recorded data during subsequent start-ups.2. The method of claim 1 , wherein said repeated read-stability comprises an ability to read data from the optical record carrier for a predetermined number of cycles at a predetermined read power.3. The method of claim 1 , wherein the properties of the at least one recording layer on which the selection is based includes theread-out speed of the recorded data.4. The method of claim 1 , wherein one of the plurality of the recording layers is a first recording layer disposed above a first surface of a substrate and wherein the first recording layer is present adjacent to a substantially thick metal layer.5. The method of claim 1 , wherein the data related to the start-up procedure is at least one of:table of contents of the recorded data;information on a menu structure of the recorded data; andan executable application.6. A method for recording data related to a start-up procedure on at least one of a plurality of recording ...

RECORDABLE OPTICAL DISC, RECORDING DEVICE, AND RECORDING METHOD

The present invention is to realize a proper inner zone layout in a quadruple-layer disk. 1. A recordable optical disk comprising:four recording layers configured to be provided over a disk substrate; andan optically-transparent layer configured to be formed on a laser-incident surface side, whereinfour test areas for laser power control are each provided in an inner circumference side area closer to an inner circumference than a data zone in which user data is recorded in a respective one of the recording layers, andthe test areas of a first pair and the test areas of a second pair are so disposed as to be prevented from overlapping with each other in a layer direction if two test areas closer to a disk outer circumference, of the four test areas, are defined as the first pair and two test areas closer to a disk inner circumference, of the four test areas, are defined as the second pair.2. The recordable optical disk according to claim 1 , whereinthe two test areas of the first pair have the same consumption direction of the test area, and are so disposed that parts to be used next in the test areas are prevented from overlapping with each other in the layer direction.3. The recordable optical disk according to claim 2 , whereinthe two test areas of the second pair have the same consumption direction of the test area opposite to the consumption direction of the test area in the first pair, and are so disposed that parts to be used next in the test areas are prevented from overlapping with each other in the layer direction.4. The recordable optical disk according to claim 2 , whereinthe two test areas of the first pair have the same consumption direction of the test area as a first consumption direction, and the test area in the recording layer closer to the disk substrate, of the two test areas of the first pair, is located ahead of the test area in the recording layer closer to a laser-incident surface, of the two test areas of the first pair, in the first ...

RECORD CARRIER OF THE OPTICAL TYPE AND A DEVICE FOR RECORDING AND/OR PLAYBACK FOR USE WITH SUCH A RECORD CARRIER

The invention relates to a record carrier of a disc-like optically inscribable type, having a preformed track in which an auxiliarily signal comprising a sequence of codes is recorded by means of a preformed track modulation. The codes comprise a sequence of address codes (AC) specifying the addresses of the track portions in which said address codes (AC) are recorded and special codes (SC). The special codes (SC) can be distinguished from said address codes (AC) and specify control data for controlling a recording by a recording device. The sequence can be obtained by replacing in a sequence of address codes (AC) with consecutive address values a plurality of said address by special codes (SC). The periodic pattern of address codes and special codes has a predetermined positional relationship with respect to a predetermined reference address. Such as for example a positional shift with respect to the start of a Lead-in area. The presence and or amount of such a shift may be used to represent additional control information or indicate the presence of area on a disc provided with such additional control information. 1. A record carrier of the disc-like optically inscribable type , having a preformed track in which an auxiliary signal comprising a sequence of codes is recorded by means of a preformed track modulation , which codes comprise a sequence of address codes (AC) specifying the addresses of the track portions in which said address codes (AC) are recorded and special codes (SC) which are distinguished from said address codes (AC) specifying control data for controlling a recording by a recording device and which sequence is obtained by replacing in a sequence of address codes (AC) with consecutive address values a plurality of said address by special codes (SC) , wherein , the said sequence comprises a periodic pattern of address codes and special codes which pattern has a predetermined positional relationship with respect to a predetermined reference address. ...

QUICK ACCESS TO DISC MANAGEMENT INFORMATION

The invention relates to a method and a recording device for easy and quick access to record carrier management information stored on the record carrier itself. The invention further relates to a record carrier for use in such a method and recording device. 1. A record carrier comprising:a plurality of management areas for storing disc management information,a signal area comprising signals indicating whether or not the management areas are in use, each one of said signals being related to one of said management areas, wherein the signal area is located inside or adjacent to a first one of said plurality of management areas, and the signals are in the form of presence or absence of high frequency marks, the presence indicating that the related management area is in use.201. The record carrier as claimed in claim 1 , wherein the record carrier has at least two information layers (L claim 1 ,L).3. The record carrier of claim 1 , wherein the signals are clusters on a record carrier claim 1 , said clusters comprising status marks for indicating a first status of said management areas and comprising no marks for indicating a second status of said areas for storing disc management information.4. The record carrier of claim 3 , wherein the first status indicates that the management areas are in use claim 3 , and the second status indicates that the management areas are not in use.5. The record carrier of claim 3 , wherein the signal area comprises a standard predefined number of clusters of the first one of said plurality of management areas.6. The record carrier of claim 5 , wherein:the clusters of the signal area are associated with corresponding management areas,the signals in the clusters indicate which of the management areas are filled, andthe number of clusters is equal to the number of management areas or the number of clusters is one less than the number of management areas.70011. The record carrier of claim 2 , wherein the disc management information for a first ...

METHOD AND SYSTEM FOR ITERATIVELY TESTING AND REPAIRING AN ARRAY OF MEMORY CELLS

A memory system includes an array of memory cells and a repair module. Multiple memory cells in the array are redundant to other memory cells in the array. The repair module iteratively tests the array. During the iterative testing of the array, the repair module, during each test of the array, (i) identifies one or more defective memory cells in the array, if any, and (ii) in response to one or more defective memory cells being identified during the test, respectively replaces the one or more defective memory cells with one or more memory cells that are redundant to other memory cells in the array. The repair module performs the iterative testing of the array until (i) the repair module does not detect a defective memory cell or (ii) no memory cells of the memory cells that are redundant remain available for replacement of a defective memory cell. 1. A memory system comprising:an array of memory cells, wherein a plurality of memory cells in the array of memory cells are redundant to other memory cells in the array of memory cells; and (i) identify one or more defective memory cells in the array of memory cells, if any, and', '(ii) in response to one or more defective memory cells being identified during the test, respectively replace the one or more defective memory cells with one or more of the plurality of memory cells that are redundant to other memory cells in the array of memory cells,, 'a repair module configured to iteratively test the array of memory cells, wherein during the iterative testing of the array of memory cells, the repair module is configured to, during each test of the array of memory cells,'}wherein the repair module is configured to perform the iterative testing of the array of memory cells until (i) the repair module does not detect a defective memory cell or (ii) no memory cells of the plurality of memory cells that are redundant to other memory cells in the array of memory cells remain available for replacement of a defective memory cell.2 ...

DYNAMIC HIGHER-LEVEL REDUNDANCY MODE MANAGEMENT WITH INDEPENDENT SILICON ELEMENTS

A Solid-State Disk (SSD) controller enables dynamic higher-level redundancy mode management with independent silicon elements to provide graceful degradation as non-volatile (e.g. flash) memory elements fail during operation of an SSD implemented by the controller. Higher-level error correction provides correction of lower-level uncorrectable errors. If a failure of one of the non-volatile memory elements is detected, then the higher-level error correction is dynamically transitioned from operating in a current mode to operating in a new mode. The transition includes one or more of reducing free space available on the SSD, rearranging data storage of the SSD, recovering/storing failed user data (if possible), and determining/storing revised higher-level error correction information. Operation then continues in the new mode. If another failure of the non-volatile memory elements is detected, then another transition is made to another new mode. 1. A system comprising:means for computing k redundant data portions to protect n-k useful data portions;means for storing each of the k redundant data portions and each of the n-k useful data portions in separate corresponding areas, each of the corresponding areas in a respective one of n physical devices;means for, subsequent to a failure such that one of the corresponding areas is no longer usable, computing j redundant data portions to protect n-1-j useful data portions; andwherein j<=k.2. The system of claim 1 , wherein the means for computing k redundant data portions to protect n-k useful data portions is operable in a first data protection mode claim 1 , the means for computing j redundant data portions to protect n-1-j useful data portions is operable in a second data protection mode claim 1 , and further comprising means for claim 1 , in response to the failure claim 1 , switching from operating in the first data protection mode to operating in the second data protection mode.3. The system of claim 1 , wherein when j ...

EFFICIENT ACCESS TO STORAGE DEVICES WITH USAGE BITMAPS

Upon receiving a request to allocate a storage region, a storage device may initialize the contents of the storage device to default values (e.g., zero) in order to avoid problems arising from unknown data stored in the locations of the storage region (e.g., upon writing a data set to a location involved in a mirroring relationship, uninitialized data in the corresponding mirror location may result in a mismatch that jeopardizes the written data). However, initializing the storage device may be time-consuming and inefficient. Instead, a usage bitmap may be generated that, for respective location sets of the storage region, indicates whether values exist in the location. A read request may be fulfilled by examining the usage bitmap to determine whether values exist in the specified location, and if not, the default value may be returned without accessing the storage device. Other efficiencies may also be achieved using the usage bitmap. 2. The method of the storage set comprising:at least two storage regions, anda usage bitmap array comprising usage bitmaps respectively storing indications of values existing in respective locations of a storage region.3. The method of claim 1 , the instructions configured to claim 1 , upon receiving an allocation request to generate the storage region claim 1 , refrain from initializing the storage region.4. The method of claim 1 , calculating the parity value comprising: reading stored data values that are stored at other data locations of the location set, and', 'calculating the parity value using the stored data values and the data values of the write request; and, 'if the usage bitmap indicates data values existing at locations of the location setif the usage bitmap does not indicate values existing at the location set, calculating the parity value using the data values of the write request and default values for other data locations of the location set.5. The method of :at least one unwritten location of the location set not ...

EFFICIENT ACCESS TO STORAGE DEVICES WITH USAGE BITMAPS

Upon receiving a request to allocate a storage region, a storage device may initialize the contents of the storage device to default values (e.g., zero) in order to avoid problems arising from unknown data stored in the locations of the storage region (e.g., upon writing a data set to a location involved in a mirroring relationship, uninitialized data in the corresponding mirror location may result in a mismatch that jeopardizes the written data). However, initializing the storage device may be time-consuming and inefficient. Instead, a usage bitmap may be generated that, for respective location sets of the storage region, indicates whether values exist in the location. A read request may be fulfilled by examining the usage bitmap to determine whether values exist in the specified location, and if not, the default value may be returned without accessing the storage device. Other efficiencies may also be achieved using the usage bitmap. 2. The method of the storage set comprising:at least two storage regions, anda usage bitmap array comprising usage bitmaps respectively storing indications of values existing in respective locations of a storage region.3. The method of claim 1 , the instructions configured to claim 1 , upon receiving an allocation request to generate the storage region claim 1 , refrain from initializing the storage region.4. The method of claim 1 , at least one location set comprising:at least two data locations respectively storing a data value, andat least one parity location respectively storing a parity value of the data values of the data locations.5. The method of claim 4 , the instructions configured to claim 4 , upon receiving a write request to write at least one data value to respective locations of a location set:write the data values to the data locations;calculate a parity value for the location set;store the parity value at the parity location for the location set; andupdate the usage bitmap to indicate values existing at the locations ...

SERVO PATTERN BY MICROWAVE ASSISTED MAGNETIC RECORDING, PERPENDICULAR MAGNETIC RECORDING MEDIUM, MAGNETIC STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME

Disclosed is a technique of providing a perpendicular magnetic recording medium in which high-quality servo information enabling high-density recording of 500 kTPI or more is recorded, and a magnetic storage device of an adaptive track formatting type having large capacity, high reliability and high performance with high device manufacturing yield. At a servo area of the perpendicular magnetic recording medium, a servo sequence such as a burst pattern for positioning in a servo track is recorded in a seamless manner without big recording footprint (several times longer than the servo bit) and in a magnetization pattern such that a total amount of the recording magnetization is substantially zero. 1. A servo information recording method for recording servo-related information on a perpendicular magnetic recording medium by a magnetic head , the servo-related information including a servo sequence that provides positioning information made up of a seamless pattern having recording footprint in size that can be substantially ignored and having a total amount of recording magnetization that is substantially zero , the magnetic head including: a recording magnetic pole generating recording magnetic field; a high-frequency oscillation element provided in a recording gap of the recording magnetic pole and generating high-frequency magnetic field; a magnetic reproduction element that reads information from a magnetic recording medium; and a TFC element that adjusts clearance between the high-frequency generation element and a magnetic recording medium , the method comprising the steps of:a first step of performing recording/reproducing of servo information on the perpendicular magnetic recording medium while changing a combination of a value of first current that generates the recording magnetic field and a value of second current that generates the high-frequency magnetic field, thus deciding a combination of a value of the first current and a value of the second current, ...

SMART OPTIMIZATION OF TRACKS FOR CLOUD COMPUTING

Optimization of tracks on a hard disk includes: determining I/O characteristics for data clusters to be stored on the hard disk; generating a set of solutions for each possible placement configuration; for each solution, calculating a plurality of cost functions using the I/O characteristics for the plurality of data clusters; for each solution, calculating a membership value using the cost function values; for each solution, calculating a fitness value using the membership value; retaining the solutions with the fitness value greater than a predetermined threshold; determining whether at least one stopping condition has been met; if not, adding new solutions to the retained solutions to generate the next set of solutions; and repeating the calculating the membership value, the calculating the fitness value, and the retaining the solutions with the fitness value greater than the predetermined threshold until at least one stopping condition has been met. 1. A method for optimization of tracks on a hard disk , comprising:determining I/O characteristics for a plurality of data clusters to be stored on the hard disk;determining a plurality of costs of operation of the hard disk for a plurality of possible placement configurations of the plurality of data clusters, wherein the determining uses the I/O characteristics for the plurality of data clusters; anddetermining an optimal placement map for the plurality of data clusters from the plurality of costs of operation.2. The method of claim 1 , wherein the determining the plurality of costs of the operation of the hard disk for the plurality of possible placement configurations of the plurality of data clusters comprises:generating a set of solutions for a possible placement configuration; andfor each solution, calculating a cost function value for a plurality of cost functions.3. A computer program product for optimization of tracks on a hard disk claim 1 , the computer program product comprising: determine I/O ...

RECORDING MANAGEMENT APPARATUS, RECORDING MANAGEMENT METHOD, AND PROGRAM

A recording management apparatus includes: a control unit configured to perform track setting processing arranged to set a fixed management information track where management information to be fixedly disposed with a data structure conforming to the UDF, in a layer on the front-most side as viewed from a laser entry face side, to a recording medium having a plurality of layers serving as recording layers where recording of information is performed by laser irradiation on which a track serving as a continuous recording area is formed in which recording of data is performed, closing track processing arranged to set the fixed management information track to a consecutive recording completed state immediately after setting, and writing request processing arranged to record, by performing management information writing request for the fixed management track which has been closed, management information relating to this writing request in another track by sparing processing. 1. A recording management apparatus comprising: track setting processing arranged to set a fixed management information track where management information to be fixedly disposed with a data structure conforming to the UDF, in a layer on the front-most side as viewed from a laser entry face side, to a recording medium having a plurality of layers serving as recording layers where recording of information is performed by laser irradiation on which a track serving as a continuous recording area is formed in which recording of data is performed,', 'closing track processing arranged to set the fixed management information track to a consecutive recording completed state immediately after setting, and', 'writing request processing arranged to record, by performing management information writing request for the fixed management information track which has been closed, management information relating to this writing request in another track by sparing processing., 'a control unit configured to perform'}2. The ...

SYSTEMS AND METHODS FOR READING AND DECODING ENCODED DATA FROM A STORAGE DEVICE

Systems and methods of reading data from a storage device are provided. A first codeword and a second codeword are read from a storage device, where the second codeword is positioned after the first codeword. The first and second codewords are decoded in parallel, and the decoding of the second codeword completes before the decoding of the first codeword completes. The decoded second codeword and a signal indicating whether the decoding of the second codeword is complete are transmitted to control circuitry before the decoding of the first codeword completes. 1. A method of reading data from a storage device , the method comprising:reading a first codeword and a second codeword from the storage device, wherein the second codeword is positioned on the storage device after the first codeword;decoding the first codeword and the second codeword in parallel, wherein the decoding of the second codeword completes before the decoding of the first codeword completes; andtransmitting, to control circuitry, before the decoding of the first codeword completes, the decoded second codeword and a signal indicating whether decoding of the second codeword is complete, wherein the signal indicates a position of the second codeword with respect to the first codeword.2. The method of claim 1 , wherein the signal indicating whether decoding of the second codeword is complete includes a tag identifying the position of each codeword with respect to other codewords in the storage device.3. The method of further comprising the control circuitry transmitting an input signal claim 1 , to the storage device claim 1 , initiating the first codeword and the second codeword to be read from the storage device claim 1 , wherein the input signal includes a tag identifying the order in which the first codeword and the second codeword are to be decoded.4. The method of claim 1 , further comprising the control circuitry storing the second codeword in a memory unit once the second codeword has been ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store information relating to recording power corresponding to the recording speed,the data structure is configured to store information specifying single layer or dual layer or another,the control area includes data ID,the data ID is configured to specify reflectivity,the data ID is configured to specify an area type corresponding to a lead-in area or another area,the lead-in area includes the control area, andthe data ID includes a layer number.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store information relating to recording power corresponding to the recording speed,the data structure is configured to store information specifying single layer or dual layer or another,the control area includes data ID,the data ID is configured to specify an area type corresponding to a lead-in area or another area,the lead-in area includes the control area, andthe data ID includes a layer number.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store information relating to recording power corresponding to the recording speed,the data structure is configured to store information specifying single layer or dual layer or another,the control area includes data ID,the data ID is configured to specify reflectivity, andthe data ID includes a layer number.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable information storage ...

BAD BLOCK MANAGEMENT MECHANISM

A system includes a non-volatile random access memory (NVRAM) device and controller logic that detects a bad block within the device, retires the bad block and replaces the bad block with a replacement block by assigning the address of the bad block to the replacement block. 1. An apparatus comprising:memory controller logic to detect a bad block within a non-volatile random access memory (NVRAM) device, retire the bad block and replace the bad block with a replacement block by assigning the address of the bad block to the replacement block.2. The apparatus of wherein the controller logic moves the contents of the retired block to the replacement block prior to retiring the bad block.3. The apparatus of further comprising an Address Indirect Table (AIT) to store information to translate between system memory addresses and NVRAM addresses claim 1 , wherein the controller logic remaps the address of the bad block to the replacement block using the AIT.4. The apparatus of further comprising a free block list including a list of blocks available to be used as replacement blocks.5. The apparatus of wherein the controller logic selects the replacement block from the free block list and remaps the address of the bad block to the replacement block.6. The apparatus of wherein the controller logic detects that the block is bad upon detecting that a number of Error Correcting Code (ECC) errors has exceeded a predetermined threshold.7. The apparatus of wherein the controller logic detects that the block is bad upon detecting a hard failure at the NVRAM device.8. The apparatus of wherein the controller logic detects that the block is bad block upon detecting one or more error conditions at the NVRAM device.9. The apparatus of wherein the controller logic determines whether a number of bad blocks in the PCM device has exceeded a predetermined threshold.10. The apparatus of wherein the NVRAM device is retired upon determining that the number of bad blocks has exceeded a ...

CONTROL METHOD AND SYSTEM

A control method of controlling a disk storage unit, includes: obtaining, by a computer, for a plurality of sectors allocated on a disk included in the disk storage unit, track identifying information that identifies a track to which sectors belong, in a first order starting from a first start sector; and storing, if first track identifying information obtained in a first sector of the plurality of sectors does not match second track identifying information obtained in a second sector of the plurality of sectors immediately before the first sector, a data length from the first start sector to the second sector in a storage unit. 1. A control method of controlling a disk storage unit , comprising:obtaining, by a computer, for a plurality of sectors allocated on a disk included in the disk storage unit, track identifying information that identifies a track to which sectors belong, in a first order starting from a first start sector; andstoring if first track identifying information obtained in a first sector of the plurality of sectors does not match second track identifying information obtained in a second sector of the plurality of sectors immediately before the first sector, a data length from the first start sector to the second sector in a storage unit.2. The control method according to claim 1 , further comprising:obtaining, for the plurality of sectors, disk plane identifying information that identifies a disk plane to which sectors belong, in a second order starting from a second start sector; andstoring, if disk plane identifying information obtained in a third sector of the plurality of sectors does not match disk plane identifying information obtained in a fourth sector of the plurality of sectors immediately before the first sector, a data length from the second start sector to the second sector in the storage unit.3. The control method according to claim 1 , wherein the first order is an ascending order or a descending order of serial numbers assigned to ...

SUPER-RESOLUTION OPTICAL RECORDING MEDIUM ON WHICH INFORMATION IS RECORDED USING TRAIN OF PREPITS, OPTICAL RECORDING MEDIUM REPRODUCTION DEVICE, AND CONTROL METHOD

A super-resolution optical recording medium () of the present invention includes: a medium information region () on which medium identification information is recorded; a content region () on which content information is recorded; and a blank region () provided between the medium information region () and the content region () and in which at least two tracks are provided so as to connect a train of prepits in the medium information region () and a train of prepits in the content region (). No information is recorded on the blank region (). With this arrangement, the present invention provides a super-resolution optical recording medium in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded. 115-. (canceled)16. A super-resolution optical recording medium comprising:a first region on which medium identification information which causes a medium type to be identified is recorded with use of trains of prepits each of which is constituted by prepits longer than a resolution limit of an optical system of an optical recording medium reproduction device;a second region on which content information is recorded with use of trains of prepits each of which includes a prepit equal to or shorter than the resolution limit of the optical system, the second region having a track pitch smaller than that of the first region; anda blank region provided between the first region and the second region so as to spirally connect the trains of prepits in the first region and the trains of prepits in the second region, the blank region including at least two tracks,a track pitch, between (i) a first one of said at least two tracks that is adjacent to a first one of the trains of prepits of ...

INFORMATION RECORDING APPARATUS, INFORMATION PLAYBACK APPARATUS, AND FORMATTING METHOD

According to one embodiment, an information recording apparatus includes a divider, a generator, and a recorder. The divider is configured to divide recording data into a plurality of recording data blocks for each predetermined recording unit. The generator is configured to set, as a first block set, n recording data blocks recorded in corresponding areas in file system management areas of n, first to nth (n: integer, n≧2) storages, and generate first parity data from the n recording data blocks forming the first block set. The recorder is configured to record the n recording data blocks forming the first block set and the first parity data. 1. An information recording apparatus comprising:a divider configured to divide recording data into a plurality of recording data blocks for each predetermined recording unit;a generator configured to set, as a first block set, n recording data blocks recorded in corresponding areas in file system management areas of n, first to nth (n: integer, n≧2) storages, and generate first parity data from the n recording data blocks forming the first block set; anda recorder configured to record the n recording data blocks forming the first block set in first areas in the file system management areas of the n storages out of corresponding first areas in the file system management areas of the n storages and one storage, and record the first parity data in the first area in the file system management area of the one storage,wherein the generator is configured to extract, from the plurality of recording data blocks, n recording data blocks for forming the first block set, and configured to, when m (m: integer, m≧1) recording data blocks smaller in number than the n recording data blocks remain, generate temporary parity data based on the remaining m recording data blocks, andthe recorder is configured to record the remaining m recording data blocks in corresponding second areas in the file system management areas of m storages out of the n ...

DETECTION OF DATA IN BURST CUTTING AREA OF OPTICAL DISK

An apparatus generates outgoing data to be provided on an optical disk in a burst cutting area. The burst cutting area further comprises markings which cause a marking frequency spectrum when reading out the burst cutting area. The apparatus comprises a channel coder which receives processed data and supplies the outgoing data having an outgoing data frequency spectrum with suppressed DC-content. The apparatus further comprises a data processing device which generates the processed data to obtain an outgoing frequency spectrum wherein a frequency component causing interference with a low frequent component of the markings is suppressed or not present. 1. An optical disk comprising data and markings in a burst cutting area , the markings causing a marking frequency spectrum when reading out the burst cutting area , the data comprising frames comprising a layer indication and a random data sequence , the frames having a data frequency spectrum and wherein a frequency component of the data frequency spectrum that interferes with a low frequent component of the markings frequency spectrum is suppressed or not present.2. An optical disc comprising data in a burst cutting area , the burst cutting area comprising markings causing a marking frequency spectrum when reading out the burst cutting area , wherein the data in the burst cutting area is divided into frames selected to have a standard frame structure being also used for user data outside the burst cutting area.3. A method of creating outgoing data to be provided on an optical disk in a burst cutting area , the burst cutting area further comprising markings causing a marking frequency spectrum when reading out the burst cutting area , the method comprises:channel coding for receiving processed data to supply the outgoing data having an outgoing data frequency spectrum with suppressed DC-content, anddata processing for generating the processed data to obtain an outgoing frequency spectrum wherein a low frequency ...

DISK-SHAPED RECORDING MEDIUM AND RECORDING/REPRODUCING DEVICE FOR DISK-SHAPED RECORDING MEDIUM

When recording layers were provided on both the front and back sides of an optical disk in order to increase the recording capacity, whether the reproducing surface of the optical disk taken out of the cartridge was the front side or the back side could not be determined. This problem can be solved by adding to the BCA, in addition to disk identification information: type information indicating whether a recording surface is provided on one side or both sides; side information indicating whether the surface with which reproduction is being performed is side A or side B; recording layer quantity information indicating whether the disk has a single layer or a double layer; information indicating the areas other than the BCA and the directions in which data on the read-in, data zones, and read-out are recorded/reproduced; and information indicating the presence/absence of a disk cartridge. 1. An optical disc having recording surfaces on its both surfaces , comprising:a BCA in which information about the optical disc is recorded; anda lead-in area which is located on a peripheral side of the BCA and in which information about the optical disc is recorded;wherein the BCA is divided into a plurality of blocks;wherein a first one of the plurality of blocks has information recorded therein, the information indicating at least disc type, recording characteristics, a version number of a standard with which the disc is compliant, and whether the disc is double-sided or not;wherein a second one of the plurality of blocks has at least optical disc intrinsic information used for copy management and a manufacturer identification code recorded therein; andwherein the disc type, recording characteristics, and a version number of the standard with which the disc is compliant are recorded in the lead-in area.2. The optical disc set forth in claim 1 , wherein the first block contains information for identifying the recording surfaces.3. The optical disc set forth in claim 1 , wherein ...

DISK STORAGE APPARATUS AND METHOD FOR MANAGING STORAGE AREA

According to one embodiment, a disk storage apparatus includes a disk having a storage area, a storage device storing management information, and a controller. The storage area includes a plurality of areas. The management information includes information indicative of a use priority or rank of each of the areas. The information indicative of the use priority or rank is set based on a quality index relating to a read operation or a write operation. The controller selects an area which is high in the use priority or rank and is usable, by referring to the management information, and executes the write operation on the selected area. 1. A disk storage apparatus comprising:a disk comprising a storage area having a plurality of areas;a storage device configured to store management information including information indicative of a use priority or rank of each of the areas, the information indicative of the use priority or rank being set based on a quality index relating to a read operation or a write operation; anda controller configured to select an area which is high in the use priority or rank and is usable, by referring to the management information, and to execute the write operation on the selected area.2. The disk storage apparatus of claim 1 , wherein the controller is further configured to:select areas in descending order in the use priority or rank;determine, based on the management information, whether normal use of each of the selected areas as a storage area is permitted; andexecute an additional process for enhancing reliability of a corresponding area and execute the write operation when the normal use of the corresponding area is inhibited.3. The disk storage apparatus of claim 2 , wherein the management information is generated in a manufacturing process of the disk storage apparatus claim 2 , and is stored in the storage device.4. The disk storage apparatus of claim 2 , wherein the controller is further configured to select an area comprising a free ...

MAGNETIC DISK DEVICE AND METHOD OF CONTROLLING MAGNETIC DISK DEVICE

According to one embodiment, first data is written into a first storage area with a shingled write recording scheme. A verification process is performed. The verification process includes reading second data and checking whether or not a read error has occurred. The second data is partial data of the first data written into the first storage area and is data written into a sector of the first track that is adjacent to a sector of the second track for which writing has completed. 1. A magnetic disk device comprising:a magnetic head;a magnetic disk that includes a first storage area for which recording is performed with a first recording scheme by the magnetic head, the first recording scheme including repetitive overlapping of a part of a second track with a first track, the second track being adjacent to the first track; anda controller configured to:write first data into the first storage area with the first recording scheme; andperform a verification process, the verification process including reading second data and checking whether or not a read error has occurred, the second data being partial data of the first data written into the first storage area and being data written into a sector of the first track that is adjacent to a sector of the second track for which writing has completed.2. The magnetic disk device according to claim 1 , wherein the controller performs the verification process after a size of the first data written in the first storage area reaches a first size.3. The magnetic disk device according to claim 2 , wherein the second data has a second size smaller than the first size.4. The magnetic disk device according to claim 3 , wherein the second size is determined based on the number of third tracks at a time when the size of the first data written in the first storage area reaches the first size and an influence of an adjacent track interference claim 3 , the third tracks being the first tracks and to which a write process for all sectors of ...

DATA PROTECTION SYSTEM

Systems and methods for logically organizing data for storage and recovery on a data storage medium using a multi-level format are described. Embodiments include systems and methods for protecting data stored on a data storage medium so that the data may be recovered without errors. 1. A method of storing data comprising:creating a first partition in a data storage medium, the first partition comprising a first contiguous subdivision of the data storage medium within which all data is written in one format and at one density;receiving a first logical block from a host, the first logical block including first data;writing the first data to the data storage medium within the first partition;creating a first structure that describes a host defined logical block address of the first data and a physical address of the first data in the data storage medium;creating a second partition in the data storage medium, the second partition comprising a second contiguous subdivision of the data storage medium within which all data is written in one format and at one density;writing the first structure to the storage medium within the second partition.writing within the first partition, an error correction code for the first data; and writing within the second partition, an error correction code for the first structure, wherein error correction within the first partition differs from error correction within the second partition in either or both of (i) type of error correction code, and (ii) amount of data redundancy.2. The method of claim 1 , further comprising:creating a second structure that describes the host defined logical block address of the first data; andwriting the second structure to the storage medium within the first partition.3. The method of claim 2 , further comprising:creating a third partition in the data storage medium, the third partition comprising a third contiguous subdivision of the data storage medium within which all data is written in one format and at ...

METHOD AND APPARATUS FOR DETERMINING READ-HEAD DEVIATION USING ORTHOGONAL PREAMBLES

A storage device includes read circuitry having a read head having a detector that outputs signals representing data from a first track and an adjacent track. The read head is subject to off-track excursions during which the read head detects signals from both the first track and an adjacent track. Data on each track includes a preamble including a repeating pattern. The repeating pattern in any first track is orthogonal to the repeating pattern in any track adjacent to the first track. The read circuitry also includes respective Discrete Fourier Transform circuits to identify components in the signals corresponding to respective frequencies characteristic of the repeating pattern on the first track and the repeating pattern on the second track, and computation circuitry to determine from the components a ratio by which the read head is off-track. Corresponding methods are provided for operating such a storage device and for reading data. 1. A method of operating a storage device having a storage medium , the method comprising:writing data to tracks on the storage medium, data for each track including a preamble including a repeating pattern, wherein the repeating pattern in any first track is orthogonal to the repeating pattern in any track adjacent to the first track;detecting with a read head signals from both the first track and an adjacent track;analyzing preamble output of the read head to determine a ratio by which the read head is off-track.2. The method of wherein the analyzing comprises applying a Discrete Fourier Transform to the preamble output of the read head.3. The method of further comprising filtering the preamble output of the read head prior to the applying.4. The method of wherein the applying comprises applying a separate Discrete Fourier Transform for a frequency corresponding to the repeating pattern on the first track and a frequency corresponding to the repeating pattern on the adjacent track.5. The method of wherein the analyzing comprises ...

DYNAMIC BAND BOUNDARIES

Systems and methods are disclosed for dynamic band boundaries in data storage devices, particularly devices employing shingled magnetic recording. Band boundaries may be modified to include spare sectors from guard areas between bands to achieve field defect-slipping. Band boundaries can also be shifted to migrate spare sectors from one guard area to another in order to dynamically distribute spare sectors. In one embodiment, an apparatus may comprise a data storage medium and a controller. The data storage medium may have a first and second sequence of circumferentially adjacent data sectors, and a first guard area disposed between the first and second sequence such that no sector of the first sequence is directly adjacent to a sector of the second sequence. The controller may be configured to restructure the first sequence to include a sector from the first guard area to produce a shifted first sequence. 1. An apparatus comprising: a first band of multiple tracks including a first sequence of circumferentially adjacent data sectors;', 'a second band of multiple tracks including a second sequence of circumferentially adjacent data sectors;', 'a first guard area disposed between the first sequence and the second sequence such that no sector of the first sequence is directly adjacent to a sector of the second sequence, the first guard area comprising sectors not designated for storing data;, 'a data storage medium having restructure the first sequence by adjusting a boundary of the first band to include a selected sector from the first guard area to produce a shifted first sequence; and', 'designate the selected sector for storing data., 'a controller configured to2. The apparatus of further comprising the first sequence includes a plurality of data tracks configured to store data in a shingled manner where one track partially overlaps an adjacent track.3. The apparatus of further comprising: a first spare sector to replace defective sectors; and', 'isolation sectors ...

BINDING SHINGLED RECORDING BANDS

Systems and methods are disclosed for binding shingled recording bands in data storage devices, particularly devices employing shingled magnetic recording. In one embodiment, an apparatus may comprise a controller configured to define boundaries of an area of a data storage medium based on a constraint and a list of defective sectors. In another embodiment, an apparatus may comprise a data storage device including a memory configured to store data in a shingled manner where one track partially overlaps an adjacent track, and a controller configured to define boundaries of a plurality of bands, each band including a plurality of tracks of the memory, based on the results of an error discovery scan for defective sectors of the memory. 1. An apparatus comprising: perform a defect discovery scan on a data storage medium to determine defective sectors;', 'define boundaries of a writable area of a band of the data storage medium based on a constraint and defective sectors located in the band, the band including a plurality of shingled tracks of the data storage medium where one track partially overlaps an adjacent track., 'a controller configured to2. The apparatus of further comprising:the controller further configured to define boundaries of the writable area by designating a first track and a last track.3. The apparatus of further comprising: read data from the writable area;', 'modify the read data; and', 'write the modified data to the writable area., 'the constraint includes an amount of time to4. (canceled)5. The apparatus of further comprising:the constraint includes a selected number of non-defective data sectors in the writable area.6. The apparatus of further comprising: 'define the boundaries of the writable area by designating at least one guard track to separate the writable area from other writable data sectors, the at least one guard tracks not being used to store user data.', 'the controller configured to7. The apparatus of comprising the controller ...

DATA-CENTER DRIVE WITH SPLIT-ACTUATOR THAT INCREASES READ/WRITE PERFORMANCE VIA DATA STRIPING

A method for writing data in a disk drive having actuators each controlling arms extending over disk surfaces, including: receiving a write command from a host; receiving from the host data; dividing the data into data blocks; determining: a first surface from the disk surfaces where data is written by a first head of an arm controlled by a first actuator of the actuators; and a second surface from the disk surfaces where data is written by a second head of an arm controlled by a second actuator of the actuators; determining storage blocks of each of the first and the second surface; and writing first data blocks of the divided data blocks to the determined storage blocks of the first surface using the first head while writing second data blocks of the divided data blocks to the determined storage blocks of the second surface using the second head. 1. A method for writing data in a disk drive having a plurality of actuators that each controls a plurality of arms extending over a plurality of disk surfaces , the method comprising:receiving a write command from a host device;receiving from the host device data to be written by the write command;dividing the received data into data blocks; a first surface from the plurality of disk surfaces where data is written by a first head of an arm controlled by a first actuator of the plurality of actuators; and', 'a second surface from the plurality of disk surfaces where data is written by a second head of an arm controlled by a second actuator of the plurality of actuators;, 'determiningdetermining one or more storage blocks of each of the first and the second surface where the divided data blocks are written; andwriting one or more first data blocks of the divided data blocks to the determined storage blocks of the first surface using the first head while writing one or more second data blocks of the divided data blocks to the determined storage blocks of the second surface using the second head.2. The method according to ...

CHANNEL BITWORD PROSESSOR, PRML DECODER, AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE

It is an objective of the present invention to provide a technique to balance DSV in channel bit word when using fixed-length run length limited code based on enumeration. A channel bit word processor according to the present invention: evaluates DSV of a channel bit word in NRZI format which is generated on the basis of enumeration; and selects a connection word which causes a minimum absolute value of DSV after connecting a plurality of channel bit words (refer to FIG. ). 1. A channel bit word processor that processes a channel bit word using a run length limited code of fixed length based on enumeration , comprising:a channel bit word generator that generates the channel bit word of NRZI format using a user bit word;a DSV evaluator that calculates a DSV of a plurality of consecutive ones of the channel bit words; anda connection word selector that selects one of a plurality of connection word candidates that are candidates of connection word connecting the plurality of consecutive ones of the channel bit words,{'b': 1', '1, 'wherein the plurality of connection word candidates includes one of the connection word candidate that includes an odd number of bit “” in NRZ format and one of the connection word candidate that includes an even number of bit “” in NRZ format,'}and wherein the connection word selector selects one of the connection word candidates as the connection word, so that an absolute value of DSV of a code stream in which the plurality of consecutive ones of the channel bit words and the connection word are combined is minimized.2. A PRML decoder that decodes , using PRML method , a bit frame configured by a channel bit word of NRZI format using a run length limited code of fixed length based on enumeration and a connection word between the channel bit words , comprising:an ACS unit that calculates a path metric in PRML decode process; anda connection word determinator that determines which one of a plurality of connection word candidates is selected ...

I/O BALANCE PROCESSING METHOD AND DEVICE

The present disclosure provides a method and device for processing I/O balance. The method includes: receiving a storage request message carrying a data table, an estimated capacity of the data table, a size of a data block corresponding to the data table, and a disk identifier indicating storage of the data table, where the data table includes at least one data file; and acquiring database information according to the estimated capacity of the data table, the size of the data block corresponding to the data table and the total number of disks corresponding to the disk identifier, generating a first shell script according to the storage request message and the database information, and creating a database according to the first shell script. 1. A method for processing I/O balance , comprising:receiving a storage request message, wherein the storage request message comprises: a data table, an estimated capacity of the data table, a size of a data block corresponding to the data table, and a disk identifier indicating storage of the data table, the data table comprising at least one data file;acquiring database information according to the estimated capacity of the data table, the size of the data block corresponding to the data table and the total number of disks corresponding to the disk identifier, wherein the database information comprises: an estimated capacity of the data table in each disk corresponding to the disk identifier, the number of data files in each disk corresponding to the disk identifier, and a size of the data file; andgenerating a first shell script according to the storage request message and the database information, and creating a database according to the first shell script.2. The method according to claim 1 , wherein acquiring the database information according to the estimated capacity of the data table claim 1 , the size of the data block corresponding to the data table and the total number of the disks corresponding to the disk identifier ...

SEQUENTIAL WRITE MANAGEMENT IN A DATA STORAGE SYSTEM

Sequential write management in accordance with the present description permits impermissible write retries to be processed by a hard drive such as a Shingled Magnetic Recording (SMR) hard dive. In one embodiment, logic returns a successful write indication in response to a received retry write request operation without writing data to the SMR hard drive if the data of the received retry write operation has already been successfully written to the same location requested by the received retry write request operation. Conversely, a failure notice is returned if the data of the received retry write request operation has not been previously successfully written to the same location requested by the received retry write request operation. Other features and aspects may be realized, depending upon the particular application. 1. A system , comprising:a data storage system having a storage controller and at least one storage unit controlled by the storage controller and configured to store data in the primary volume, wherein the storage unit has a processor; and receiving a write request operation to write data to a location in the storage unit;', 'determining whether the received write request operation is a retry write request operation of a previous write request operation to write to the same location of the previous write request operation;', 'in response to a determination that the received write request operation is a retry write request operation of a previous write request operation, determining if the data of the previous write request operation has previously been successfully written to the same location of the received write request operation; and', 'in response to a determination that the data of the previous write request operation has been successfully written to the same location of the received write request operation, bypassing execution of the received write request operation and returning a successful write indication in response to the received write ...

Detection of logical corruption in persistent storage and automatic recovery therefrom

A method, system, and computer program product for restoring blocks of data stored at a corrupted data site using two or more mirror sites. The method commences by receiving a trigger event from a component within an application server environment where the trigger event indicates detection of a corrupted data site. The trigger is classified into at least one of a plurality of trigger event types, which trigger event type signals further processing for retrieving from at least two mirror sites, a first stored data block and a second stored data block corresponding to the same logical block identifier from the first mirror site. The retrieved blocks are compared to determine a match value, and when the match value is greater than a confidence threshold, then writing good data to the corrupted data site before performing consistency checks on blocks in physical or logical proximity to the corrupted data site.

INFORMATION PROCESSING APPARATUS

A setting unit is configured to set first write processing for writing second data in a hard disk, or second write processing for writing the second data in the hard disk and reading data that is written by writing of the second data, and a change unit is configured to change the write processing set in the setting unit. The change unit changes the write processing set in the setting unit from the first write processing to the second write processing, based on determination that the first data is greater than or equal to a threshold by a determination unit. 1. An information processing apparatus including a hard disk , the information processing apparatus comprising:a storage unit configured to store at least Self-Monitoring, Analysis and Reporting Technology (SMART) information of the hard disk, the SMART information including first data about a sector replaced with an alternative sector;a determination unit configured to compare the first data about the sector replaced with the alternative sector and a threshold corresponding to the first data and thereby determine whether the first data is greater than or equal to the threshold;a setting unit configured to set first write processing for writing second data in the hard disk, or second write processing for writing the second data in the hard disk and reading data that is written by writing of the second data; anda change unit configured to change the write processing set in the setting unit,wherein the change unit changes the write processing set in the setting unit from the first write processing to the second write processing, based on determination that the first data is greater than or equal to the threshold by the determination unit.2. The information processing apparatus according to claim 1 , wherein the second write processing rewrites the second data in the hard disk claim 1 , based on failing to normally read the written data.3. The information processing apparatus according to claim 1 , further ...

DISTRIBUTED LOGICAL TRACK LAYOUT IN OPTICAL STORAGE TAPE

An optical data storage tape includes more than one segment, with each segment divided into multiple zones, which include multiple data tracks. The layout of the logical zones in one segment is in a different order than those of another segment. In an example, the tape includes at least N physical segments, at least M physical zones in each segment, at least M logical zones assigned to the M physical zones, and wherein logical zones of adjacent physical segments are in a different order than an adjacent physical segment. 1. An optical data storage tape comprising:at least N physical segments;at least M physical zones in each segment;at least M logical zones assigned to the M physical zones; andwherein logical zones of adjacent physical segments are in a different order than an adjacent physical segment.2. The optical tape of claim 1 , wherein a first logical zone is in a first physical zone and an Mth logical zone is in a last physical zone for a first physical segment.3. The optical tape of claim 2 , wherein an Mth logical zone is in a first physical zone and an M−1 logical zone is in the last physical zone for a second physical segment.4. The optical tape of claim 3 , wherein an M−1 logical zone is in a first physical zone and an M−2 logical zone is in the last physical zone for a third physical segment.5. The optical tape of claim 4 , wherein a second logical zone is in a first physical zone and a first logical zone is in the last physical zone for an Nth physical segment.6. An optical data storage tape system comprising:N optical tape drive units for reading a plurality of logical storage segments;an optical tape to be read by the optical tape drive units, the optical tape having a plurality of physical segments, the physical segments each having M physical zones; andwherein logical zones of adjacent physical segments are in a different order.7. The system of claim 6 , wherein a first physical segment includes logical zones in the order of [1 claim 6 , 2 claim 6 ...

DATA STORAGE DEVICE PERFORMANCE OPTIMIZATION METHOD AND APPARATUS

A method includes storing a data group in a first zone of a plurality of radial zones of a data storage disc. Each different one of the plurality of zones has a different throughput level. The method further includes obtaining information related to an access frequency of the data group stored in the first zone of the plurality of zones. Based on the information related to the access frequency of the data group and the different throughput levels of the different zones, a determination is made as to whether to migrate the data group from the first zone of the plurality of zones to a second zone of the plurality of zones. 1. A data storage device comprising:at least one storage disc having a recording surface segmented into a plurality of radial zones, wherein each different one of the plurality of zones has a different throughput level; and obtain information related to an access frequency of a data group stored in a first one of the plurality of zones;', 'based on the information related to the access frequency of the data group and the different throughput levels of the different zones, determine whether to migrate the data group from the first one of the plurality of zones to a second one of the plurality of zones; and', 'when a determination to migrate the data group to the second one of the plurality of zones is made, migrate the data group to the second one of the plurality of zones in conjunction with a read-modify-write operation that replaces invalid data from the first one of the plurality of zones., 'a controller configured to2. The data storage device of and wherein each of the plurality of zones comprises at least one shingled magnetic recording (SMR) band that includes SMR tracks claim 1 , and wherein the read-modify-operation is a SMR band rewrite operation.3. The data storage device of and wherein each of the plurality of zones comprises non-shingled tracks claim 1 , and wherein the read-modify-operation is carried out on unaligned data blocks ...

Optical disk, optical disk recording device, and optical disk playback device

An optical disk includes a disk management information area in which predetermined information is recorded in advance, and a recording system area in which information for identifying a recording system of the optical disk recorded in a predetermined position within a non-data area included in a recordable area is recorded. A method for accessing the optical disk is decided based on disk management information and the information for identifying a recording system.

SYSTEMS AND METHODS UTILIZING A FLEXIBLE READ REFERENCE FOR A DYNAMIC READ WINDOW

A memory system having a flexible read reference is disclosed. The system includes a memory partition, a failcount component, and a controller. The memory partition includes a plurality of memory cells. The failcount component is configured to generate failcounts in response to read operations of the memory partition. The controller is configured to calibrate a reference value for the memory partition by utilizing the failcounts. 1. A memory system utilizing a flexible read reference , the system comprising:a memory partition having a plurality of memory cells;a failcount component configured to generate failcounts in response to read operations of the memory partition, where the failcounts indicate a number of the memory cells having failed reads; anda controller configured to generate a calibrated reference value for the memory partition by utilizing the failcounts from the failcount component.2. The system of claim 1 , where the plurality of memory cells in the memory partition have been subjected to similar characteristics.3. The system of claim 2 , wherein the similar characteristics include cycle time.4. The system of claim 1 , wherein the reference value is a reference current.5. The system of claim 1 , wherein the reference value is a reference voltage.6. The system of claim 1 , wherein the failcount component utilizes one or more of checksums claim 1 , parity bits claim 1 , cyclic redundancy checks claim 1 , and error correcting code to generate the failcounts.7. The system of claim 1 , wherein the failcount component utilizes an error correcting code algorithm to generate the failcounts.8. The system of claim 1 , wherein the controller is configured to perform the read operations with modified reference values to generate the calibrated reference value.9. The system of claim 8 , wherein the modified reference values start with an initial value and are decreased by a step amount.10. The system of claim 9 , wherein the calibrated reference value is ...

SERVO INFORMATION RECORDING METHOD AND MAGNETIC STORAGE APPARATUS

A servo information recording method continuously records servo information in a radial direction of a magnetic disk on a plurality of concentric tracks or on a single spiral track of a first recording layer that forms a magnetic layer of the magnetic disk together with a second recording layer to which data are recorded and from which data are reproduced, wherein the first recording layer has a coercivity higher than that of the second recording layer, and partially overlaps two mutually adjacent tracks when continuously recording the servo information on an entire surface of the first recording layer. 1. A servo information recording method comprising:continuously recording, by a magnetic head, servo information in a radial direction of a magnetic disk on a plurality of concentric tracks or on a single spiral track of a first recording layer that forms a magnetic layer of the magnetic disk together with a second recording layer to which data are recorded and from which data are reproduced, wherein the first recording layer has a coercivity higher than that of the second recording layer; andpartially overlapping two mutually adjacent tracks when continuously recording the servo information on an entire surface of the first recording layer in the radial direction from an inner peripheral side towards an outer peripheral side of the magnetic disk, or from the outer peripheral side towards the inner peripheral side of the magnetic disk,wherein a distance between the magnetic head and the first recording layer is longer than a distance between the magnetic head and the second recording layer during the continuously recording.2. The servo information recording method as claimed in claim 1 , wherein the continuously recording simultaneously records the servo information with respect to the first recording layer and the second recording layer claim 1 , and thereafter applies an external magnetic field to the first recording layer in order to erase only the first recording ...

SHINGLED MAGNETIC RECORDING DATA STORE

Implementations disclosed herein provide a method comprising storing data in a two level key-value data store in an SMR storage device, wherein a first level of the data store comprises a journal of incoming host operations and a second level of the data store comprises a plurality of ordered data stores, ordered based on a predetermined ordering criterion. 1. A method , comprising:storing data in a two level key-value data store in an SMR storage device, wherein a first level of the data store comprises a journal of incoming host operations and a second level of the data store comprises a plurality of ordered data stores ordered based on a predetermined ordering criterion.2. The method of claim 1 , wherein the predetermined ordering criterion is sequentiality of the plurality of ordered data stores.3. The method of claim 1 , wherein each of the plurality of ordered data stores belongs to an SMR band.4. The method of claim 1 , wherein each of the plurality of ordered data stores is separated by an existing key-space range.5. The method of claim 1 , further comprising merging at least one of a plurality of bands of the first level with at least one of a plurality of bands of the second level to form newly ordered second level bands.6. The method of claim 5 , wherein the merging is in response to a number of bands in the first level reaching a predetermined threshold.7. The method of claim 6 , further comprising selectively reordering one of more of the plurality of second level bands based on sequentiality of the one or more of the plurality of second level bands.8. The method of claim 7 , further comprising estimating the sequentiality of one or more of the plurality of second level bands using an equi-depth histogram.9. The method of claim 1 , further comprising selecting one or more of the plurality of first level bands for a compaction process.10. The method of claim 9 , wherein selecting one or more of the plurality of first level bands is based on estimating of ...

METHOD FOR ADJUSTING LINEAR RECORDING DENSITY AND MAGNETIC DISK DRIVE

According to one embodiment, there is provided a method, implemented in a magnetic disk drive, for adjusting a linear recording density. The method obtains a first flying-dependent error sensitivity for each of two or more heads. The first flying-dependent error sensitivity represents a change in read error rate corresponding to a change in flying height of the head during write. In addition, the method reduces the linear recording density of a first recording surface associated with a first head of the two or more heads if the first flying-dependent error sensitivity is a second flying-dependent error sensitivity higher than a threshold and corresponds to the first head. 1. A method , implemented in a magnetic disk drive , for adjusting a linear recording density , the magnetic disk drive comprising one or more disks and two or more heads , the one or more disks comprising two or more recording surfaces , the two or more heads being associated with the respective two or more recording surfaces , the method comprising:obtaining a first flying-dependent error sensitivity for each of the two or more heads, the first flying-dependent error sensitivity representing a change in read error rate corresponding to a change in flying height of the head during write;comparing the first flying-dependent error sensitivity of each of the two or more heads with a threshold; andreducing the linear recording density of a first recording surface associated with a first head of the two or more heads if the first flying-dependent error sensitivity is a second flying-dependent error sensitivity higher than the threshold and corresponds to the first head.2. The method of claim 1 , wherein:each of the two or more recording surfaces comprises a plurality of zones;the first flying-dependent error sensitivity is obtained for each of combinations of the two or more heads and the plurality of zones; andthe linear recording density of a first zone of the first recording surface is reduced if ...

Systems and Methods for Enhanced Servo Data Processing

Systems and method relating generally to detecting information, and more particularly without limitation to systems and methods for synchronizing to a data stream.

PARTIAL UPDATES FOR SHINGLED MAGNETIC RECORDING DEVICES

Technologies are provided for partially updating shingled magnetic recording (SMR) zones in SMR storage devices. An SMR storage device can receive and process a command to update a write pointer for an SMR zone to point to an arbitrary write position within the SMR zone. A partial SMR zone update command can be received and processed to modify part of the data stored in the SMR zone. A write position within the SMR zone where data to be modified is stored can be identified. Data stored in the SMR zone following the identified write position can be read to a temporary location and modified. A write pointer for the SMR zone can be updated to point to the identified write position. The modified data can then be written to the SMR zone, starting at the write position identified by the write pointer, or to another SMR zone of the storage device. 120.-. (canceled)21. A method , comprising:receiving a command to delete data stored in a shingled magnetic recording (SMR) region of a storage device;responsive to receiving the command to delete the data, resetting a write pointer for the SMR region;receiving a command to undo the deletion of the data; andresponsive to receiving the command to undo the deletion of the data, setting the write pointer for the SMR region to a write position after the data stored in the SMR region of the storage device.22. The method of claim 21 , wherein the resetting the write pointer for the SMR region comprises transmitting a write pointer reset command to the storage device.23. The method of claim 21 , wherein:the command to delete the data comprises an identifier associated with the data; and using the identifier to determine that the data is stored in the SMR region of the storage device; and', 'retrieving the write pointer for the SMR region from a storage medium of the storage device., 'the method further comprises24. The method of claim 23 , wherein the retrieving the write pointer for the SMR region from the storage medium of the storage ...

SCALABLE STORAGE DEVICE

Implementations described and claimed herein provide a high-capacity, high-bandwidth scalable storage device. The scalable storage device includes a layer stack including at least one memory layer and at least one optical control layer positioned adjacent to the memory layer. The memory layer includes a plurality of memory cells and the optical control layer is adapted to receive optically-encoded read/write signals and to effect read and write operations to the plurality of memory cells through an electrical interface. 1. A storage device comprising: a memory layer including a plurality of memory cells; and', 'an optical control layer positioned adjacent to the memory layer in the layer stack, the optical control layer being adapted to receive and transmit optically-encoded read/write signals and effect read and write operations to the plurality of memory cells through an electrical interface., 'a layer stack including at least2. The storage device of claim 1 , wherein the optical control layer further comprises:a bus waveguide; anda plurality of wave division multiplexers (WDM) each being positioned to couple optical signals delivered by the bus waveguide to a respective optical-electrical conversion element coupled to the memory layer.3. The storage device of claim 2 , wherein a first subset of the WDMs are dedicated to transporting write signals from the optical control layer to the memory layer claim 2 , each of the WDMs in the first subset being tuned to intercept light of a different wavelength from the bus waveguide such that the first subset of the WDMs collectively facilitate parallel transport of multiple streams of write data between the optical control layer and the memory layer.4. The storage device of claim 2 , wherein a second subset of the WDMs are dedicated to transporting read signals from the memory layer to the optical control layer claim 2 , each of the WDMs in the second subset being tuned to output light of a different wavelength to the bus ...

DISK DRIVE WITH DIFFERENT SYNCHRONIZATION FIELDS AND SYNCHRONIZATION MARKS IN THE DATA SECTOR PREAMBLES IN ADJACENT DATA TRACKS

A hard disk drive has disks with data sector preambles that allow for inter-track interference. The same data sector preamble is used for all data sectors in a track but the preamble in each track is different from the preamble in radially adjacent tracks. In a first embodiment each preamble includes a synchronization field (SF) and synchronization mark (SM) that are the same in each track but different from the SF and SM in radially adjacent tracks. Only two unique SFs and two unique SMs are required, with the two SFs and two SMs alternating in radially adjacent tracks. In a second embodiment the preambles are “integrated”, meaning that the preamble is a sequence of bits that does not include separate dedicated fields, like SF and SM. The preamble bit sequences are decoded using matched filters to provide bit synchronization and start-of-data information. 1. A magnetic recording disk comprising:a substrate;a magnetic recording layer on the substrate, the recording layer having a plurality of radially-spaced data tracks containing angularly spaced data sectors for the recording of data bits;a plurality of angularly spaced data sector preambles extending generally radially across the data tracks, each preamble comprising a synchronization field (SF) for acquiring bit synchronization and a synchronization mark (SM) for indicating the start of a data sector; andwherein each SF in each track is different from the SF in radially adjacent tracks and each SM in each track is different from the SM in radially adjacent tracks, and wherein no SF has a first harmonic frequency that is the same as the frequency of any other SF.2. The disk according to wherein there are at least two unique SFs and at least two unique SMs.3. The disk according to wherein one SF is a periodic 2T frequency and another SF is selected from a periodic 2.5T frequency and a periodic 3T frequency claim 1 , where T is the duration of a bit.4. The disk according to wherein there are three unique SFs and ...

DISK DRIVE WITH DIFFERENT DATA SECTOR INTEGRATED PREAMBLES IN ADJACENT DATA TRACKS

A hard disk drive has disks with data sector preambles that allow for inter-track interference. The same data sector preamble is used for all data sectors in a track but the preamble in each track is different from the preamble in radially adjacent tracks. In a first embodiment each preamble includes a synchronization field (SF) and synchronization mark (SM) that are the same in each track but different from the SF and SM in radially adjacent tracks. Only two unique SFs and two unique SMs are required, with the two SFs and two SMs alternating in radially adjacent tracks. In a second embodiment the preambles are “integrated”, meaning that the preamble is a sequence of bits that does not include separate dedicated fields, like SF and SM. The preamble bit sequences are decoded using matched filters to provide bit synchronization and start-of-data information. 1. A magnetic recording disk comprising:a substrate;a magnetic recording layer on the substrate, the recording layer having a plurality of radially-spaced data tracks;a plurality of data sectors in each track for the recording of data bits, each data sector having a nondata preamble bit sequence without a bit synchronization field and without a start-of-data indication field for its associated data sector, each preamble bit sequence being decodable to provide bit synchronization and start-of-data indication for its associated data sector; andwherein the preamble bit sequences are the same for all the data sectors in a track and the preamble bit sequences in each track are unique from the preamble bit sequences in radially adjacent tracks.2. The disk according to wherein there are at least two unique preamble bit sequences.3. The disk according to wherein there are three unique preamble bit sequences.4. The disk according to wherein each unique preamble bit sequence has small autocorrelation at nonzero lag.5. The disk according to wherein each unique preamble bit sequence has low cross-correlation with each other ...

OPTICAL DISC WITH PRE-RECORDED AND RECORDABLE REGIONS AND METHOD OF FORMING THE DISC

An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc. 128-. (canceled)29. A recording device , comprising: retrieving information for identifying at least one recordable region of a disc by one of: accessing pre-recorded data on the disc, and accessing a database external to the disc; and', 'directing a laser to write additional data to the at least one recordable region after disc manufacturing., 'a processor configured for executing a program having instructions for performing a method; the method comprises30. The recording device of claim 29 , wherein the laser has a wavelength in a blue-violet region.31. The recording device of claim 29 , wherein the at least one recordable region has at least one groove with a plurality of gaps; and the laser is configured for writing data to at least one of: the groove claim 29 , and one of the plurality of gaps.32. The recording device of claim 31 , wherein the laser is configured for writing data to at least one gap claim 31 , and the plurality of gaps have a separation between adjacent gaps of less than about 10 μm.33. The recording device of claim 31 , wherein the laser is configured for writing data to at least one gap claim 31 , and the plurality of gaps have a separation between adjacent gaps of between about 0.5 μm and 2 μm.34. The recording device of claim 31 , wherein the laser is configured for writing data to at least one gap claim 31 , and each of the plurality of gaps has a length less than about 200 nm.35. The recording device of claim 31 , wherein the laser is configured for writing data to at least one gap claim 31 , and each of the plurality of gaps has a length sufficient for differential phase detection ...

STORAGE CONTROL DEVICE AND STORAGE APPARATUS

A storage control device includes a processor which performs first copy of copying first data stored in a first storage device into a first backup region upon detecting a failure presage in the first storage device. The processor performs first write of writing second data specified in a first write request to the first storage device and second write of writing the second data into the first backup region upon receiving the first write request while performing the first copy. The processor performs second copy of copying third data stored in the first backup region to a second storage device upon completing the first copy. The processor performs third write of writing fourth data specified in a second write request to the second storage device in place of the first storage device upon receiving the second write request after completion of the second copy. 1. A storage control device , comprising:a memory; and detect a failure presage in a first storage device;', 'perform first copy of copying first data into a first backup region upon detecting the failure presage, the first data being stored in the first storage device, the first backup region including a redundant array of inexpensive disks;', 'perform first write of writing second data to the first storage device and second write of writing the second data into the first backup region upon receiving a first write request from a host apparatus while performing the first copy, the second data being specified in the first write request;', 'perform second copy of copying third data to a second storage device upon completing the first copy, the third data being stored in the first backup region; and', 'perform third write of writing fourth data to the second storage device in place of the first storage device upon receiving a second write request from the host apparatus after completion of the second copy, the fourth data being specified in the second write request., 'a processor coupled to the memory and the ...

STORAGE STACK ARCHITECTURE FOR MANY-LOG STRUCTURED MEDIA

Operations of a variety of components of a storage system stack are redefined to make the system more efficient when the underlying media has a “multi-log” type interface such as the case with NAND flash SSD memory or shingled magnetic recording media. The responsibilities of components of the storage system stack are modified such that each responsibility is performed at the most efficient component (level of abstraction) of the storage stack. 1. A method of improving utilization of a data storage system , comprising:determining one or more data storage device management functions that are applicable to one or more data storage devices;determining one or more data storage device management functions that are particular to a given one of the one or more data storage devices;assigning data storage device management functions that are particular to the given one of the one or more data storage devices to the given one of the one or more data storage devices; andassigning data storage device management functions that are not particular to the given one of the one or more data storage devices to a data storage system host layer.2. The method of claim 1 , wherein the one or more data storage devices include a data storage device selected from the group consisting of: a solid state storage device claim 1 , a magnetic recording media device claim 1 , a shingled magnetic recording device claim 1 , an optical recording devices claim 1 , and a magnetic tape recording device.3. The method of claim 1 , prior to determining one or more data storage device management functions that are applicable to one or more data storage devices claim 1 , associating the one or more data storage devices with the data storage system host layer claim 1 , and querying the one or more data storage devices for device configuration information.4. The method of claim 3 , further comprising utilizing the device configuration information for determining the one or more data storage device management ...

Error Correction for Storage Devices

The present disclosure describes systems and techniques relating to storage devices, such as storage devices that employ Shingled Magnetic Recording (SMR). According to an aspect of the described systems and techniques, a device includes: circuitry configured to write stored data and parity data to discrete portions of a Shingled Magnetic Recording (SMR) track in a SMR storage device; and circuitry configured to recover stored data for one of the discrete portions of the SMR track using the parity data and the stored data read from remaining ones of the discrete portions of the SMR track. 1. A method comprising:receiving, at a storage controller, a data request for a Shingled Magnetic Recording (SMR) storage device;reading, in response to the data request, stored data and parity data from discrete portions of a SMR track in the SMR storage device;detecting an error in data from the reading; andrecovering stored data for one of the discrete portions of the SMR track using the parity data and the stored data read from remaining ones of the discrete portions of the SMR track.2. The method of claim 1 , comprising using an error correcting code for data read from the discrete portions of the SMR track claim 1 , wherein the recovering is performed for the one of the discrete portions of the SMR track when the error correcting code fails for the one of the discrete portions of the SMR track.3. The method of claim 1 , wherein the discrete portions of the SMR track are data sectors in the SMR storage device.4. The method of claim 1 , wherein the discrete portions of the SMR track compose the SMR track in its entirety.5. The method of claim 1 , wherein the discrete portions of the SMR track are a first section of the SMR track claim 1 , the reading comprises reading the SMR track in its entirety claim 1 , including additional stored data and additional parity data from one or more additional sections of the SMR track claim 1 , and the method comprises recovering stored data ...

Information processing apparatus and access control method

Upon receipt of an instruction to access a logical address of a storage medium, an information processing apparatus controls access to its corresponding physical address of the storage medium. A management unit manages mapping between a continuous series of logical addresses and discrete physical addresses skipping a predetermined number of replacement areas. A controller identifies to which physical address the received logical address is mapped, and controls access to the storage medium using the identified physical address. When a defect occurs in a storage area indicated by a physical address, the information processing apparatus remaps its corresponding logical address to a replacement area adjacent to the defective physical address.

ORGANIZING FILES FOR FILE COPY

For organizing files for file copy, an order module determines a first order for a plurality of files. The store module stores each file in the first order. File data and file metadata for the file are stored contiguously on a storage disk. 1. An apparatus comprising:a computer readable storage medium storing machine readable code;a processor executing the machine readable code, the machine readable code comprising:an order module determining a first order for a plurality of files; anda store module storing each file in the first order, wherein file data and file metadata for the file are stored contiguously on a storage disk.2. The apparatus of claim 1 , the order module further organizing groups of the plurality of files.3. The apparatus of claim 2 , wherein the first order comprises arranging files within a same group contiguously.4. The apparatus of claim 3 , wherein each group is a file type.5. The apparatus of claim 3 , wherein each group is a directory.6. A method comprising:determining, by use of a processor, a first order for a plurality of files; andstoring each file in the first order, wherein file data and file metadata for the file are stored contiguously on a storage disk.7. The method of claim 6 , further comprising organizing groups of the plurality of files.8. The method of claim 7 , wherein the first order comprises arranging files within a same group contiguously.9. The method of claim 8 , wherein each group is a file type.10. The method of claim 8 , wherein each group is a directory.11. The method of claim 8 , wherein each group is an age category.12. The method of claim 6 , wherein contiguous data is stored in adjacent track sectors.13. The method of claim 6 , wherein each file is originally stored with the file data and the file metadata for the file in the first order.14. The method of claim 6 , wherein each file is stored with the file data and the file metadata for the file in the first order in response to a storage disk defragmentation.15. ...

STORAGE TAPE WOBBLE DECODER AND METHOD

Amplitude or phase modulated uncompensated wobble patterns representing address patterns for track addresses of optical media are generated or applied to the media. A filter is applied to the un-compensated wobble patterns to detect a threshold value to signal the existence of a synchronization pattern. A pair of filters can be used to detect the threshold and a zero-crossing. This methodology can detect the existence and timing of the wobble pattern. This can eliminate the need for a timing recovery subfield in the wobble pattern of the prior art. 1. A method for decoding a wobble pattern on an optical medium comprising:reading a wobble pattern signal on an optical medium, the wobble pattern signal stored in a wobble physical nanostructure track that is smaller than a land and groove structure of the optical medium, the wobble pattern signal representing address patterns for track addresses of the optical medium;applying a matched filter to the wobble pattern signal to generate a detection signal when the wobble pattern is detected by the matched filter; anddetecting a threshold of the detection signal to indicate a beginning of an address field.2. The method of claim 1 , wherein reading the wobble pattern signal includes generating a signal including dual cycle wobble blocks.3. The method of claim 2 , wherein the dual cycle wobble blocks include a sync field and an address field following the sync field.4. (canceled)5. The method of claim 1 , wherein the wobble pattern signal is free from a timing recovery signal.6. The method of claim 1 , wherein applying the matched filter includes applying a sync sine matched filter to the wobble pattern signal.7. The method of claim 6 , wherein the sync sine matched filter includes taps with coefficients to match a desired wobble pattern.8. The method of claim 6 , wherein applying the matched filter includes applying a sync cosine matched filter to the wobble pattern signal to output a signal to a zero crossing detector and ...

MAGNETIC DISK DEVICE

In one embodiment, a magnetic disk device includes a disk with a recording surface, and a head. The recording surface includes a first area including a plurality of track groups in each of which data is recorded while a part of the data is overlappingly recorded, a second area provided separately in an outer circumference side from the first area, and including a plurality of track groups different from the first area in each of which data is recorded while a part of the data is overlappingly recorded, and a third area adjacent to the first area and the second area in a radial direction, and including a plurality of tracks which are arranged at a prescribed interval between the tracks. The head overlappingly records the data in the track groups of the first area in an order from the track locating at a center side to the track locating at the circumference side, and overlappingly records the data in the track groups of the second area in an order from the track locating at the circumference side to the track locating at the center side. 1. A magnetic disk device , comprising:a disk with a recording surface,the recording surface includinga first area including a plurality of track groups in each of which data is recorded while a part of the data is overlappingly recorded,a second area provided separately in an outer circumference side from the first area, and including a plurality of track groups different from the first area in each of which data is recorded while a part of the data is overlappingly recorded, anda third area adjacent to the first area and the second area in a radial direction, and including a plurality of tracks which are arranged at a prescribed interval between the tracks; anda head which overlappingly records the data in the track groups of the first area in an order from the track locating at a center side to the track locating at the circumference side, and overlappingly records the data in the track groups of the second area in an order from ...

Method For Sensing The Physically-Recordable Maximum Capacity Of A Disc

The method adapted for a disc burner for sensing/computing the maximum allowable capacity of a disc for overburn purpose where an accurate capacity of the disc based on the outermost-edge wobble signal is obtained, resulting in more data written on the disc with an amount of the data smaller than the physically-recordable maximum capacity of the disc and decreasing the failure rate of data overburning. 1. A method adapted for a disc burner for sensing a physically-recordable maximum capacity of a disc , the method comprising steps of:receiving an inquiry instruction for sensing a physically-recordable maximum capacity of a disc;sensing wobble signals detected from a disc held in the disc burner;obtaining an outermost-edge wobble signal of the disc;computing the physically-recordable maximum capacity of the disc based on the outermost-edge wobble signal; andresponding to the inquiry instruction with the physically-recordable maximum capacity being computed.2. The method as claimed in claim 1 , whereinafter the step of receiving an inquiry instruction, the method further comprises steps of:reading disc specification information from a Lead-in Area of the disc held in the disc burner, wherein the disc sequentially has the Lead-in Area, a Data area, a Middle Area and an Outer Drive Area from an innermost ring of the disc to an outermost ring of the disc; andobtaining a start physical sector number of the Data Area of the disc.3. The method as claimed in claim 2 , wherein the wobble signals begin to be detected at a last physical sector of the Data Area of the disc.4. The method as claimed in claim 3 , wherein the outermost-edge wobble signal is defined as a last wobble signal at a last physical sector of the Outer Drive Area of the disc. The present invention claims the foreign priority of a Taiwanese application, number 102136268, having priority date of Oct. 8, 2013. A certified copy is attached herein.The present invention relates to a method for sensing a capacity ...

DISK STORAGE APPARATUS AND METHOD FOR SHINGLED MAGNETIC RECORDING

According to one embodiment, a disk storage apparatus includes a storage device, a writing controller, and a controller. The storage device includes a nonvolatile cache area in which a part of consecutive data is temporarily stored. The writing controller is configured to write the consecutive data in a recording area on a disk by an SMR method, the recording area being different from the cache area. The controller is configured to write the part of the data to the cache area, to invalidate data corresponding to logical addresses of the part of the data and recorded in the recording area on the disk, and to set a recording area with the invalidated data recorded therein to be an update recording area in which new data is recordable. 1. A disk storage apparatus comprising:a storage device comprising a nonvolatile cache area in which a part of consecutive data is temporarily stored;a writing controller configured to write the consecutive data in a recording area on a disk by a shingled write magnetic recording (SMR) method, the recording area being different from the cache area; anda controller configured to write the part of the data to the cache area, to invalidate data corresponding to logical addresses of the part of the data and recorded in the recording area on the disk, and to set a recording area with the invalidated data recorded therein to be an update recording area in which new data is recordable.2. The disk storage apparatus of claim 1 , wherein the controller is configured to:write first data of the consecutive data to a spare area included in the recording area on the disk and to which no logical address is assigned;write data subsequent to the first data to the cache area; andinvalidate data corresponding to logical addresses of the subsequent data and recorded in the recording area on the disk and to set a recording area on the disk with the invalidated data recorded therein to be the update recording area.3. The disk storage apparatus of claim 2 , ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a revision number table including another revision number,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, andthe data structure is configured to store information specifying single layer or dual layer or another.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed,a byte position of the version, a byte position of the extended part version field, and a byte position of one of the revision number of maximum recording speed and the revision number of minimum recording speed are smaller than a byte position of the information relating to recording power corresponding to the one of the revision number of maximum recording speed and the revision number of minimum recording ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}a byte position of the revision number of minimum recording speed is between a byte position of the version and a byte position of the extended part version field,a byte position of the revision number of maximum recording speed is between a byte position of the version and a byte position of the extended part version field, andthe data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}a byte position of the revision number of minimum recording speed is between a byte position of the version and a byte position of the extended part version field,a byte position of the revision number of maximum recording speed is between a byte position of the version and a byte position of the extended part version field,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, andthe data structure is configured to store information specifying single layer or dual layer or another.3. A reproducing method for reproducing data ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate, andthe data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable information storage medium.4. A recording method for recording data on the non-transitory machine ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store a revision number table including another revision number, andthe data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}a byte position of the revision number of maximum recording speed is between a byte position of the version and a byte position of the extended part version field, andthe data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, andthe data structure is configured to store information specifying single layer or dual layer or another.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}a byte position of the revision number of minimum recording speed is between a byte position of the version and a byte position of the extended part version field, andthe data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store a revision number table including another revision number,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, anda byte position of the version, a byte position of the extended part version field, and a byte position of one of the revision number of maximum recording speed and the revision number of minimum recording speed are smaller than a byte position of the information relating to recording power corresponding to ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}a byte position of the revision number of minimum recording speed is between a byte position of the version and a byte position of the extended part version field,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, andthe data structure is configured to store information specifying single layer or dual layer or another.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store a maximum transfer rate,the data structure is configured to store a revision number table including another revision number,the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed,a byte position of the version, a byte position of the extended part version field, and a byte position of one of the revision number of maximum recording speed and the revision number of minimum recording speed are smaller than a byte position of the information relating to recording power corresponding to the ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed, andthe data structure is configured to store information specifying single layer or dual layer or another.3. A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to claim 2 , the method comprising:irradiating the non-transitory machine readable information storage medium with light; andreproducing the data from the non-transitory machine readable information storage medium.4. A recording method for recording ...

MEMORY ALLOCATION FOR VIRTUAL MACHINES USING MEMORY MAP

Apparatuses and methods associated with memory allocations for virtual machines are disclosed. In embodiments, an apparatus may include a processor; a plurality of memory modules; and a memory controller configured to provide a layout of the memory modules. The apparatus may further include a VMM configured to be operated by the processor to manage execution of a VM by the processor including selective allocation of the memory modules to the VM using the layout of the memory modules provided to the VMM by the memory controller. Other embodiments may be described and claimed. 1. An apparatus , comprising:a processor;a plurality of memory modules;a memory controller coupled with the processor and the memory modules, and configured to provide a layout of the memory modules; anda virtual machine manager (VMM) configured to be operated by the processor to manage execution of virtual machines by the processor including selective allocation of the memory modules to the virtual machines using the layout of the memory modules provided to the VMM by the memory controller.2. The apparatus of claim 1 , wherein the VMM is configured to employ a memory allocation that utilizes the minimum number memory modules to meet the memory requirement.3. The apparatus of claim 1 , wherein the VMM is configured to employ a memory allocation that utilizes the smallest number memory modifies to meet the memory requirement.4. The apparatus of claim 1 , wherein the VMM is configured to:receive the layout of the memory modules;receive a memory requirement from a virtual machine;determine a minimum number of the memory modules to be allocated, in whole or in part, to meet the memory requirement of the virtual machine; andallocate the minimum number of memory modules to the virtual machine.5. The apparatus of claim 1 , wherein the memory controller is further configured to alert the VMM of a failure of a memory module in the memory modules.6. The apparatus of claim 5 , wherein the VMM is further ...

INSPECTION METHOD FOR OPTICAL DISC

An inspection method for a recordable optical disc includes focusing laser light on a recording layer and obtaining a data signal dependent on the laser light reflected by the recording layer. The inspection method also includes determining whether the optical disc includes a defect or not by identifying a first period every second period in the obtained data signal obtained, the first period being a period in which a signal level of the data signal is lower than a predetermined value, and each of the second periods corresponding to an ECC block, and outputting a result of the determination. 15-. (canceled)6. An inspection method for an optical disc that is recordable , the inspection method comprising:focusing laser light on a recording layer included in the optical disc, the recording layer including a plurality of recording units in which error correction is performed when the optical disc is recorded with data;obtaining an electrical signal dependent on the laser light reflected by the recording layer;determining whether the optical disc includes a defect or not by identifying a first period every second period in the electrical signal obtained, the first period being a period in which a signal level of the electrical signal is lower than a predetermined value, and each of the second periods corresponding to one of the plurality of recording units; andoutputting a result of the determining, whereinamong a plurality of optical discs stacked in a magazine in a top-bottom direction, each of which is the optical disc and includes the recording layer on each of a top surface and a bottom surface, only a first optical disc located in an topmost position and a second optical disc located in a bottommost position are subject to the inspection method,in the focusing, the laser light is focused only on the recording layer on the top surface of the first optical disc and the recording layer on the bottom surface of the second optical disc, andin the outputting, when at ...

OPTICAL RECORDING DEVICE AND OPTICAL RECORDING METHOD

An optical recording device for recording to a disk having a guide layer and a plurality of recording layers includes a controller which obtains, by calculation, logical addresses of data areas of all recording layers on the basis of physical addresses of a guide layer and recording layer information. Specifically, in treating the maximum value (last physical address) of physical addresses in the guide layer as PSN_max, recording layer information of recording layer Lx as x (x=0, 1, 2, . . . ), physical addresses corresponding to recording destination positions in the data area of recording layer Lx as PSN, and logical addresses imparted to data units recorded at recording destination positions in the data area of recording layer Lx as LSN, calculation for LSN=(PSN_max*x)+PSN . . . (1) is performed. 1. An optical recording device for recording to a disk that has at least one guide layer with a guide track where physical address information is recorded , and multiple recording layers where data is recorded according to the guide track , said optical recording device having a physical address playback part that obtains the physical address information from the guide track in the guide layer , as well as a control part that uses the obtained physical address information and information identifying each of the recording layers to calculate a logical address to be assigned to each data recorded to the recording layer.2. An optical recording device according to claim 1 , wherein the control part calculates LSN using an equation LSN=(PSN_max*x)+PSN claim 1 , where PSN_max represents a largest physical address recorded in the guide tracks claim 1 , x represents an information identifying recording layer Lx (x=0 claim 1 , 1 claim 1 , 2 claim 1 , etc. claim 1 , assigned in this order from the recording layer closest to or farthest away from the guide layer) claim 1 , PSN represents a physical address corresponding to a target recording position in a data area of recording ...

INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS, MANAGEMENT INFORMATION REPRODUCING METHOD, INFORMATION RECORDING/REPRODUCING APPARATUS AND IDENTIFICATION INFORMATION REPRODUCING/RECORDING METHOD

According to one embodiment, in an information recording medium including a plurality of data layers, at least one pre-format area is provided on each of the data layers and is circumferentially divided into a plurality of segments. Management information including data layer identification information for identifying the data layers is recorded in at least one of the segments in each of the data layers, using the marks include BCA marks extending radially uniformly. On adjacent ones of the data layers, the BCA marks associated with the management information are recorded in differently positioned segments which are not opposed to each other. 1. An information recording medium for optically storing data , which has a radial direction , comprising:a plurality of stacked data layers each having pre-format areas which are circumferentially divided into a plurality of segments, the segments on one of the data layers being opposed to the segments on adjacent one of the data layers, wherein management information including identification information for identifying the data layers is recorded as a sequence of marks in at least one of the segments in each of the data layers, the marks are uniformly extended in a radial direction of the recording medium, and the sequences of marks on the adjacent ones of the data layers are separately allocated to the segments which are not opposed to each other on the adjacent ones of the data layers; andat least one servo layer storing segment address information for specifying the segments on which the sequence of marks are allocated.2. The information recording medium of claim 1 , wherein the pre-format area is provided in one of an inner peripheral portion and an outer peripheral portion of each of the data layers.3. The information recording medium of claim 2 , wherein the management information is recorded in one of the segments in the one data layer.4. The information recording medium of claim 1 , wherein the pre-format area is ...

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification, a revision number of recording speed, and an extended part version field. 1. (canceled)2. A non-transitory machine readable information storage medium for storing data reproducible by a recording or reproducing apparatus ,the non-transitory machine readable information storage medium comprising: a version corresponding to a specification,', 'a revision number of maximum recording speed,', 'a revision number of minimum recording speed, and', 'an extended part version field, wherein, 'a control area, said control area being configured to store, within a data structure, information usable by said recording or reproducing apparatus to record or reproduce the data on or from the non-transitory machine readable information storage medium, the data structure being configured to store'}the data structure is configured to store information relating to recording power corresponding to one of the revision number of minimum recording speed and the revision number of maximum recording speed,a byte position of the version, a byte position of the extended part version field, and a byte position of one of the revision number of maximum recording speed and the revision number of minimum recording speed are smaller than a byte position of the information relating to recording power corresponding to the one of the revision number of maximum recording speed and the revision number of minimum recording speed, andthe data structure is configured to store information ...

OPTICAL DISK, OPTICAL DISK RECORDING METHOD, OPTICAL DISK RECORDING DEVICE, AND INTEGRATED CIRCUIT

There are provided an optical disk and an optical disk recording method which are capable of stable data reading in a case where a recording linear density is increased. According to an optical disk of the present disclosure, a run-in pattern recorded in a groove track and a run-in pattern recorded in a land track are made different patterns so that no great change is caused in the amplitude of an acquired signal due to interference between adjacent recording patterns, and thus, data may be stably read. 1. An optical disk comprising land tracks and groove tracks which are alternately arranged in a radial direction ,wherein the optical disk is capable of recording a bit pattern on each of the land tracks and the groove tracks by forming mark and space,each of the land tracks and the groove tracks includes a plurality of record blocks,each of the plurality of record blocks includes a run-in region and a data region,a predetermined run-in pattern is recordable in the run-in region, and a data pattern based on recording target data is recordable in the data region,in the land track and the groove track that are adjacent to each other in the radial direction of the optical disk, a first record block that is the record block of the land track and a second record block that is the record block of the groove track and that corresponds to the first record block are recorded at a same angular position in a circumferential direction of the optical disk, anda first run-in pattern to be recorded in the run-in region of the first record block and a second run-in pattern to be recorded in the run-in region of the second record block are different from each other.2. The optical disk according to claim 1 ,wherein the first run-in pattern is a repeated pattern of one or more first unity patterns,the second run-in pattern is a repeated pattern of one or more second unity patterns,the first unity pattern and the second unity pattern are patterns whose pattern length is a first length, ...

MAGNETIC DISK APPARATUS AND METHOD FOR ACCESSING DATA SECTOR

A magnetic disk apparatus includes a disk and a controller. The disk includes a plurality of tracks including a first track and a second track that is different from the first track. A plurality of data sectors are located on the tracks. The data sectors include short data sectors and long data sectors, each including a plurality of short data sectors. If the controller accesses a long data sector located at an end of the first track, the controller first accesses a short data sector of the long data sector at the end of the first track, and then accesses a short data sector of the long data sector at the beginning of the second track. 1. A magnetic disk apparatus comprising:a disk comprising a plurality of tracks including a first track and a second track that is different from the first track, a plurality of data sectors being located on the plurality of tracks, the data sectors including short data sectors and long data sectors, each including a plurality of short data sectors; anda controller configured to access the data sectors using a head,wherein, when the controller accesses a long data sector located at an end of the first track, the controller first accesses a short data sector of the long data sector at the end of the first track, and then accesses a short data sector of the long data sector at the beginning of the second track.2. The magnetic disk apparatus of claim 1 , wherein claim 1 , when the controller accesses a long data sector located at an end of the first track claim 1 , the controller interrupts in between accessing the short data sector of the long data sector at the end of the first track claim 1 , and accessing the short data sector of the long data sector at the beginning of the second track.3. The magnetic disk apparatus of claim 1 , wherein the long data sector spans the first and second data tracks.4. The magnetic disk apparatus of claim 1 , wherein the controller is further configured to access the short sectors on a corresponding ...

APPARATUS AND METHOD FOR INCORPORATING MULTI-ACTUATOR HARD DISK DRIVES INTO TRADITIONAL RAID ARRAYS

A method for operating a storage controller to write to a group of multi-actuator disk drives includes receiving a data stream, performing RAID mapping to a preselected RAID level, organizing the data stream into at least one data stream, creating at least one parity data stream, organizing each data stream and parity data stream into blocks of data, dividing each data stream and each parity data stream into groups of blocks of data assigned to a logical unit representing a drive and an actuator, blocks of data from a data stream and parity stream assigned to a different drive, sequential groups of blocks of data assigned substantially equally to logical units representing actuators in each drive, providing each group of blocks of data to a target port associated with the drive to which it has been assigned, and sending each group of blocks of data from the target port. 1. A method for operating a storage controller to aggregate a group of multi-actuator disk drives in a multi-actuator disk drive system comprising:receiving in the storage controller a data stream including data to be written to the group of multi-actuator disk drives;performing RAID mapping across the group of multi-actuator disk drives on the data stream to a preselected RAID level;organizing the data stream into at least one data stream, the number of data streams selected to implement the preselected RAID level;creating at least one parity data stream, the number of parity data streams selected to implement the preselected RAID level;organizing each of the at least one data stream and each of the at least one parity data stream into blocks of data;dividing each of the at least one data stream and each of the at least one parity data stream into groups of blocks of data assigned to a logical unit representing an individual actuator of an individual multi-actuator disk drive of the group of multi-actuator disk drives, blocks of data from the of the at least one data stream assigned to the logical ...

STORAGE APPARATUS AND WRITING CONTROL METHOD

A processor is configured to determine, if a beginning or an end of a target storage area into which write data is to be written is included in a first storage area in a first storage unit, whether the beginning or the end of the target storage area coincides with a beginning or an end of the first storage area. The processor is configured to extract, if it is determined that the beginning or the end of the target storage area does not coincide with the beginning or the end of the first storage area, data identical to data stored in a sub-storage area in the first storage area from a second storage unit. The sub-storage area is not overlapped with the target storage area. The processor is configured to generate data to be written into the first storage unit by using the extracted data and the write data. 1. A storage apparatus comprising:a first storage unit including storage areas partitioned in units of a certain length, data of the certain length being read out from and written into each partitioned storage area;a second storage unit configured to store therein cache data identical to data of the certain length, which is stored in one of the storage areas in the first storage unit, in association with the one of the storage areas; and determine, if a beginning or an end of a target storage area into which write data is to be written is included in a first storage area in the first storage unit, whether the beginning or the end of the target storage area coincides with a beginning or an end of the first storage area,', 'extract, if it is determined that the beginning or the end of the target storage area does not coincide with the beginning or the end of the first storage area, complementary data identical to data stored in a sub-storage area in the first storage area from the second storage unit, the sub-storage area not being overlapped with the target storage area,', 'generate data to be written into the first storage unit by using the extracted complementary ...

OPTICAL RECORDING DEVICE, OPTICAL RECORDING METHOD AND MULTI-LAYER DISK

An optical recording device that records to a multi-layer disk having multiple recording layers includes a controller which sets a data area in which user data is recorded, and a calibration area including a main calibration area and at least one sub-calibration area which are used to calibrate the intensity of laser light for recording, with the same layout among the plurality of recording layers, conducts first calibration for performing initial recording in the data area by using the main calibration area, records dummy data in the remainder of the main calibration area, and conducts second calibration for performing additional recording in the data area by using the sub-calibration area. 1. An optical recording device that records to a multi-layer disk having multiple recording layers , said optical recording device comprising:an optical pickup that selectively irradiates laser light to the recording layers via an objective lens; anda control part that performs controls in such a way as to:set in each of the multiple recording layers a data area where user data is recorded and a calibration area used for an intensity calibration process of the laser light for recording, including a main calibration area and at least one sub calibration area, according to a same layout that applies to all of the multiple recording layers;use the main calibration area to perform a first calibration process for implementing initial recording to the data area in each of the multiple recording layers one by one from a recording layer farthest away from or closest to an objective lens of an optical pickup;record dummy data to a remainder of the main calibration area; anduse the at least one sub calibration area to perform a second calibration process for additional recording to the data area.2. An optical recording device according to claim 1 , wherein the control part performs controls in such a way that claim 1 , when the recording layer to which data will be recorded next is ...

DURABLE FILE SYSTEM FOR SEQUENTIALLY WRITTEN ZONED STORAGE

A durable file system has been designed for storage devices that do not support write in place and/or that are susceptible to errors or failures. The durable file system also facilitates organization and access of large objects (e.g., gigabytes to terabytes in size). Since the write of a large object often involves multiple write operations, the writing is also referred to as “ingesting.” When ingesting an object, the durable file system writes the object with indexing information for the object to persistent storage across multiple zones that each map to an independently accessible storage medium (e.g., disks on different spindles). After persisting the indexing information with the object, the durable file system updates a file system index in working memory (e.g., non-volatile system memory) with the indexing information for the object. 1. A method comprising:in response to a request to write an object identified by a client defined object identifier, identifying a set of zones across a plurality of storage devices based, at least in part, on a size of the object;dividing the object into a plurality of data fragments;creating indexing information that identifies the object, identifies the set of zones, indicates a same offset into each zone of the set of zones;writing each of the plurality of data fragments with the created indexing information into a different one of the set of zones;after the plurality of data fragments and indexing information has been written into the set of zones, updating an index of the durable file system with the indexing information.2. The method of further comprising:in response to a determination that the index includes a first entry that references a second set of zones with an older version of the object, removing the first entry from the index.3. The method of further comprising:searching the index for a key prefix that matches the client defined object identifier of the object, wherein keys of the index comprise a client defined ...

APPARATUS FOR METHODS FOR ALIGNED SERVO-RELATED FEATURES

Provided herein is a method, including creating a first pattern in a data region of a substrate, and creating a second pattern in a servo region of a substrate. A circumferential line pattern is created overlapping the first pattern to create rectangle-shaped protrusions in the data region of the substrate. A chevron pattern is created overlapping the second pattern to create chevron-derived protrusions in the servo region of the substrate. 1. A method , comprising:creating a first pattern in a data region of a substrate;creating a second pattern in a servo region of a substrate;creating a circumferential line pattern overlapping the first pattern to create rectangle-shaped protrusions in the data region of the substrate; andcreating a chevron pattern overlapping the second pattern to create chevron-derived protrusions in the servo region of the substrate.2. The method of claim 1 , further comprising: wherein a first sub-template comprises the second pattern, and', 'wherein a second sub-template comprises the chevron pattern., 'superimposing the second pattern and the chevron pattern in a cross-imprinting process,'}3. The method of claim 1 ,wherein the rectangle-shaped protrusions and the chevron-derived protrusions have the same circumferential pitch in accordance with radial lines of the first pattern.4. The method of claim 1 ,wherein transferring the second pattern and the chevron pattern to the substrate further creates radially aligned, line-shaped protrusions or radially aligned, square-shaped protrusions in the servo region of the substrate.5. The method of claim 1 ,wherein transferring the first pattern and the second pattern to the substrate comprises etching the first pattern and the second pattern into a UV-transmissible substrate.6. The method of claim 2 ,wherein the second pattern and the chevron pattern are superimposed with a radial displacement 10 nm.7. The method of claim 2 ,wherein the second pattern and the chevron pattern are superimposed with an ...

HARD DISK FAULT HANDLING METHOD, ARRAY CONTROLLER, AND HARD DISK

A storage array includes a plurality of hard disks, each of the hard disks is divided into a plurality of chunks, and a plurality of chunks of different hard disks form a chunk group by using a redundancy algorithm. The storage array obtains fault information of a faulty area in a first hard disk, and determines a faulty chunk storing the lost data according to the fault information. The storage array recovers the data in the faulty chunk by using another chunk in a chunk group to which the faulty chunk belongs and stores the recovered data in a recovered chunk. The recovered chunk is located in a second hard disk which is not a hard disk for forming the chunk group. 1. A hard disk fault handling method , performed by a controller in a storage system , comprising:determining a faulty chunk in a first hard disk that includes lost data, wherein the faulty chunk belongs to a chunk group, the chunk group is formed by a plurality of chunks, and each of the plurality of chunks is in a different hard disk of the storage system;recovering the data in the faulty chunk by using another chunk in the chunk group;storing the recovered data in a recovered chunk, wherein the recovered chunk is located in a second hard disk, and the second hard disk is not the first hard disk nor any of the different hard disks.2. The method according to claim 1 , wherein the determining the faulty chunk comprises:obtaining fault information of a faulty area in the first hard disk;determining the faulty chunk according to the fault information.3. The method according to claim 1 , further comprising:recording a correspondence between an address of the data in the faulty chunk in the first hard disk and an address of the recovered data in the second hard disk.4. The method according to claim 1 , further comprising:replacing the faulty chunk in the chunk group with the recovered chunk.5. The method according to claim 2 , wherein the obtaining fault information of a faulty area that is in a first hard ...

SELECTIVE WRITE POWER VARIABILITY FOR MAGNETIC RECORDING

A storage device includes a storage controller that controls a writer to generate a magnetic field at an air-bearing surface (ABS) of a storage medium and to selectively alter a strength of the magnetic field by a predetermined amount when writing data to select data tracks on the storage medium. 1. Apparatus comprising:a storage controller that controls a writer to generate a magnetic field at an air-bearing surface (ABS) of a storage medium and selectively alters a strength of the magnetic field incident on the ABS by a predetermined amount when writing data to a last data track in a data band of shingled magnetic data tracks on the storage medium.2. The apparatus of claim 1 , wherein the storage controller writes data consecutively to consecutive data tracks in the data band and decreases the strength of the magnetic field when writing to the last data track in the data band.3. (canceled)4. The apparatus of claim 2 , wherein the magnetic field is of a lower strength at the ABS when writing data to the last data track in the series than when writing to other data tracks in the series.5. The apparatus of claim 2 , wherein the last data track in the data band has a wider written track width than all other data track on the storage medium.6. The apparatus of claim 1 , wherein selectively altering the strength of the magnetic field further comprises:increasing a clearance between a writer and the ABS.7. The apparatus of claim 1 , wherein the storage controller is further configured to increase a linear density of data when writing to the last data track in the data band as compared to all other data tracks in the data band.8. The apparatus of claim 1 , wherein selectively altering the strength of the magnetic field further comprises:decreasing a write current provided to a writer of the storage device.9. The apparatus of claim 1 , wherein the last data track in the data band is defined to have a different track pitch than other data tracks of the data band.10. ...

CALIBRATION OF FLASH CHANNELS IN SSD

A method for diagnosing memory, performed by a storage system, is provided. The method includes writing and reading through a communication channel to and from flash memory of each of a plurality of flash memory devices and a static random-access memory (SRAM) register of each of the plurality of flash memory devices. The method includes analyzing errors in read data from the reading through the communication channel, identifying types of errors among flash memory errors, SRAM register errors, and communication channel errors, based on the analyzing, and indicating at least one error and type of error from the read data. 1. A method for diagnosing memory , performed by a storage system , the method comprising:writing and reading through a communication channel to and from flash memory of each of a plurality of flash memory devices and a static random-access memory (SRAM) register of each of the plurality of flash memory devices;analyzing errors in read data from the reading through the communication channel;identifying types of errors among flash memory errors, SRAM register errors, and communication channel errors, based on the analyzing; andindicating at least one error and type of error from the read data.2. The method of claim 1 , wherein the analyzing errors comprises:detecting a stuck bit or flipped bit across reads of a plurality of SRAM registers; anddetermining the stuck bit or flipped bit indicates a communication channel error, based on the detecting.3. The method of claim 1 , wherein the analyzing errors comprises:detecting a stuck bit or flipped bit across a plurality of reads of an SRAM register that does not appear in reads of other SRAM registers; anddetermining the stuck bit or flipped bit indicates an SRAM register error, based on the detecting.4. The method of claim 1 , wherein the analyzing errors comprises:detecting a stuck bit or flipped bit across a plurality of reads of flash memory of a flash memory device that does not appear in reads of ...

METHOD FOR REDUCING VARIATION RANGE OF SKEW ANGLE OF MAGNETIC WRITING POLE AND MAGNETIC WRITING POLE USING THE METHOD

A method for reducing skew angle variation range in a shingled magnetic recording system, the method including the following steps: 1) determining whether a starting magnetic track is in an inner recording zone, if yes, the process proceeds to step (2), otherwise the process proceeds to step (4); 2) using an inner writing corner to start shingled magnetic recording at a starting track; 3) using a shingled magnetic method to write rest magnetic tracks sequentially by the inner writing corner, keeping a writing pole moving in a direction from an inner recording zone to an outer recording zone; 4) determining whether the starting magnetic track is in the outer recording zone; 5) using an outer writing corner to start shingled magnetic recording at the starting track; and 6) using the shingled magnetic method to write the rest magnetic tracks sequentially by the outer writing corner. 1. A method for reducing skew angle variation range in a shingled magnetic recording system , the method comprising the following steps:1) determining whether a starting magnetic track is in an inner recording zone, if yes, the process proceeds to step (2), otherwise the process proceeds to step (4);2) using an inner writing corner to start shingled magnetic recording at a starting track, the process then proceeds to step (3);3) using a shingled magnetic method to write rest magnetic tracks sequentially by the inner writing corner, keeping a writing pole moving in a direction from an inner recording zone to an outer recording zone, until all the information needing to be written into the inner recording zone has been recorded;4) determining whether the starting magnetic track is in the outer recording zone, if yes, the process proceeds to step (5);5) using an outer writing corner to start shingled magnetic recording at the starting track, the process then proceeds to step (6); and6) using the shingled magnetic method to write the rest magnetic tracks sequentially by the outer writing corner ...

INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING METHOD, AND INFORMATION REPRODUCING APPARATUS

An information recording medium is provided with an information track formed thereon in a shape of concentric circles or in a spiral shape, wherein a continuously-wobbling groove in which information is recorded is formed in advance, the information is delimited by a predetermined number of wobble sections, a sync mark is placed in a plurality of wobble sections in the vicinity of a delimiter of the predetermined number of wobble sections, and the sync mark is spaced apart from data other than the sync mark at a distance. 1. An information recording medium with an information track formed thereon in a shape of concentric circles or in a spiral shape , whereina continuously-wobbling groove in which information is recorded is formed in advance,the information is delimited by a predetermined number of wobble sections,a sync mark is placed in a plurality of wobble sections in the vicinity of a delimiter of the predetermined number of wobble sections, andthe sync mark is spaced apart from data other than the sync mark at a distance.2. The information recording medium according to claim 1 , whereinthe predetermined number of wobble sections include a data mark representing digital data, andthe data mark is spaced apart from data other than the data mark at a distance.3. The information recording medium according to claim 1 , whereinthe distance is obtained using the sum of the square of difference between data.4. The information recording medium according to claim 1 , whereinwhen the distance is smaller than a threshold, the sync mark is detected.5. The information recording medium according to claim 1 , whereinthe sync mark is a signal modulated by an STW modulation method and is placed in a plurality of wobble sections.6. The information recording medium according to claim 5 , whereinthe predetermined number of wobble sections include a data mark representing digital data, andthe data mark is spaced apart from data other than the data mark at a distance, andthe data ...

READ ASSEMBLY, DATA STORAGE SYSTEM, AND METHODS OF USING THE SAME

In various embodiments, a read assembly for reading a dual-layered medium may be provided. The dual-layered medium may include a servo layer and a data layer over the servo layer. The read assembly may include a data read head configured to read the data layer. The read assembly may also include a servo read head configured to read the servo layer. 1. A read assembly for reading a dual-layered medium , the dual-layered medium comprising a servo layer and a data layer over the servo layer , the read assembly comprising:a data read head configured to read the data layer; anda servo read head, separate from the data read head, configured to read the servo layer.2. The read assembly according to claim 1 , a first shield structure;', 'a second shield structure; and', 'a sensor between the first shield structure and the second shield structure., 'wherein the data read head comprises3. The read assembly according to claim 2 , a third shield structure;', 'a fourth shield structure; and', 'another sensor between the third shield structure and the fourth shield structure;, 'wherein the servo read head comprises'}wherein a first distance defined between the first shield structure and the second shield structure is smaller than a second distance defined between the third shield structure and the fourth shield structure.4. The read assembly according to claim 1 , further comprising:an isolation layer between the data read head and the servo read head.5. The read assembly according to claim 3 ,wherein the sensor is a first magnetoresistance sensor; andwherein the other sensor is a second magnetoresistance sensor.6. The read assembly according to claim 1 ,wherein the data read head and the servo read head are positioned over the dual-layered medium with the data layer closer to both the data read head and the servo read head than the servo layer.7. The read assembly according to claim 1 , further comprising:a further servo read head configured to read the servo layer.8. The read ...

NON-SEQUENTIAL WRITE FOR SEQUENTIAL READ BACK

A storage device controller addresses consecutively-addressed portions of incoming data to consecutive data tracks on a storage medium and writes the consecutively-addressed portions to the consecutive data tracks in a non-consecutive track order. In one implementation, the storage device controller reads the data back from the consecutive data tracks in a consecutive address order in a single sequential read operation. 1. A method comprising:receiving data addressed to a consecutive sequence of logical block addresses (LBAs) corresponding to a consecutive sequence of data tracks on a storage medium; andwriting the data to the consecutive sequence of data tracks in a non-consecutive track order.2. The method of claim 1 , further comprising:writing the data addressed to a first consecutive portion of the consecutive sequence of LBAs to a data track of index N;writing the data addressed to a second consecutive portion of the consecutive sequence of LBAs to a data track of index N+2; andwriting the data addressed to a third consecutive portion of the consecutive sequence of LBAs to a data track of index N+1.3. The method of claim 1 , further comprising:reading the data stored in the consecutive sequence of data tracks in a single sequential read operation.4. The method of claim 1 , wherein the data is a file and the method further comprises:writing data addressed to a last portion of the file to an interlaced data track positioned between two blank data tracks.5. The method of claim 4 , wherein the data is a file and the method further comprises:writing portions of another file to the two blank data tracks.6. The method of claim 4 , wherein the data is a file and the method further comprises:moving the data of the last portion of the file to one of the two blank data tracks prior to writing data in another one of the two blank data tracks.7. The method of claim 1 , wherein at least two adjacent tracks of the consecutive data tracks have different written track widths.8 ...

INTERLACED MAGNETIC RECORDING IN HAMR DEVICES

A storage device includes a controller that implements an interlaced magnetic recording scheme with prioritized random access. According to one implementation, a controller is configured to write data at a first linear density to alternating data tracks and write data at a second linear density to one or more data tracks interlaced with the alternating data tracks. 1. A storage device controller configured to:write data at a first linear density to alternating data tracks on a storage medium in a storage device; andwrite data at a second linear density to at least one data track interlaced with the alternating data tracks, the second linear density different than the first linear density.2. The storage device controller of claim 1 , wherein the data of the first linear density is written while operating a heat assisted magnetic recording (HAMR) head at a first power and the data of the second linear density is written while operating a HAMR head at a second power.3. The storage device controller of claim 1 , wherein the data of the first linear density has a greater track width than the data at the second linear density.4. The storage device controller of claim 1 , wherein the storage device controller is further configured to:write data exclusively to the alternating data tracks at the first linear density until a capacity condition is satisfied.5. The storage device controller of claim 4 , wherein the storage device controller is further configured to:after the capacity condition is satisfied, write data at the second linear density to a number of data tracks interlaced between the alternating data tracks.6. The storage device controller of claim 1 , wherein the storage controller is configured to randomly write data to the at least one data track interlaced between the alternating data tracks.7. The storage device controller of claim 1 , wherein the storage device controller is configured to write the data at the first linear density and the second linear density ...

INTERLACED MAGNETIC RECORDING

A storage device includes a transducer head including a first write element configured to write data at a first write width and a second write element configured to write data at a second write width less than the first write width. According to one implementation, the first write element writes data at a first linear density and to alternating data tracks and the second write element writes data at a second linear density and to data tracks interlaced with the alternating data tracks. 1. A storage device comprising:a first write element configured to write data at a first write width and a second write element configured to write data at a second write width less than the first write width.2. The storage device of claim 1 , wherein the first write element and the second write element are configured to write data to a same surface of a storage media.3. The storage device of claim 1 , further comprising:a controller that controls the first write element to write data at a first linear density and controls the second write element to write data at a second linear density less than the first linear density.4. The storage device of claim 3 , wherein the controller is further configured to:control the first write element to write data to a first plurality of alternating data tracks; andcontrol the second write element to write data to at least one data track interlaced with the alternating data tracks.5. The storage device of claim 3 , wherein the data of the first linear density has a greater track width than the data of the second linear density.6. The storage device claim 3 , wherein the controller is further configured to:write data exclusively to alternating data tracks with the first write element until a capacity condition is satisfied.7. The storage device of claim 6 , wherein the controller is further configured to:write data with the second write element to a number of data tracks interlaced between the alternating data tracks after the capacity condition is ...

VARIABLE WRITTEN TRACK WIDTHS FOR ATTRIBUTE-BASED STORAGE

A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (HAMR) device based on the write attribute. 1. One or more computer-readable storage media encoding computer-executable instructions for executing on a computer system a computer process , the computer process comprising:selecting one of multiple written track widths within a data band for a storage location based on a write attribute of data to be recorded at the storage location.2. The one or more computer-readable storage media of claim 1 , wherein the computer process further comprises:selecting a power level for operating a heat-assisted magnetic recording (HAMR) head to write the data to the storage location based on the write attribute.3. The one or more computer-readable storage media of claim 1 , wherein the write attribute is at least one of write frequency or write recency.4. The one or more computer-readable storage media of claim 2 , wherein selecting the power level for operating the HAMR head further comprises:selecting a higher power if the data is cache data than if the data is non-cache data.5. The one or more computer-readable storage media of claim 2 , wherein selecting the power level for operating HAMR head further comprises:selecting between at least two power levels associated with separate regions of a magnetic medium.6. The one or more computer-readable storage media of claim 1 , wherein the storage location is a cache region on a storage medium claim 1 , the cache region including data tracks storing data at a written track width that is greater than a written track width of other data tracks on the storage medium that are not included in the cache region.7. The one or more computer-readable storage media of ...

PRIORITIZED RANDOM ACCESS FOR MAGNETIC RECORDING

A storage device includes a controller that directs incoming data to a storage location based on a capacity of a region or surface of a magnetic disc. According to one implementation, the storage device controller writes new data to data tracks in a first series of data tracks on the magnetic disc until a capacity condition is satisfied. Once the capacity condition is satisfied, the storage device controller writes new data to a second series of data tracks on the storage medium that are interlaced with data tracks of the first series. 1. Apparatus comprising:storage device controller that writes new data to data tracks in a first series of data tracks on a storage medium until a first capacity is satisfied, and writes new data to data tracks in a second series of data tracks on the storage medium after the capacity condition is satisfied, each of the data tracks of the second series being interlaced with data tracks of the first series.2. The apparatus of claim 1 , wherein the first series of data tracks is a series of alternating data tracks.3. The apparatus of claim 1 , wherein the storage device controller writes new data to data tracks in a third series of data tracks on the storage medium after a second capacity condition is satisfied claim 1 , wherein the data tracks in the third series are each separated from one another by at least one track of the first series and at least one track of the second series.4. The apparatus of claim 3 , wherein the first series of data tracks and the second series of data tracks are in a same region of the storage medium and a capacity of the same region is higher when the second capacity condition is satisfied than when the first capacity condition is satisfied.5. The apparatus of claim 3 , wherein the new data stored in the third series of data tracks is at a different linear density that the new data stored in either of the first series of data tracks and the second series of data tracks.6. The apparatus of claim 1 , ...

READER DESIGN FOR INTERLACED MAGNETIC RECORDING

A storage device includes a multi-reader transducer head with a first reader and a second reader having an effective cross-track separation equal to a multiple of a defined track-pitch of a storage medium of the storage device. The effective cross-track separation may permit for a simultaneous data read of two non-adjacent data tracks. 1. A storage device comprising:a storage media including a plurality of data tracks having a defined track pitch; anda transducer head including a first reader and a second reader with an effective cross-track separation that is an even integer multiple of the defined track pitch.2. The apparatus of claim 1 , wherein the effective cross-track separation is equal to twice the defined track pitch.3. The apparatus of claim 1 , wherein the effective cross-track separation is equal to four times the track pitch.4. The apparatus of claim 1 , wherein the plurality of data tracks correspond to a logical block address (LBA) sequence and the first reader and the second reader are configured to simultaneously read non-adjacent data tracks corresponding to a continuous claim 1 , consecutive portion of the LBA sequence.5. The apparatus of claim 1 , wherein the first reader and the second reader are positioned symmetrically about a center of rotation of the transducer head.6. The apparatus of claim 1 , wherein the first reader and the second reader are co-planar.7. The apparatus of claim 1 , wherein the transducer head further comprises:a third reader configured read data from a same data track as the first reader, the third reader positioned down-track from the first reader and offset from the first reader in the cross-track direction.8. A method comprising:simultaneously reading two non-adjacent data tracks storing data of a continuous, consecutive LBA sequence.9. The method of claim 8 , wherein the data of the two non-adjacent data tracks is read into a temporary memory buffer and the method further comprises:writing data to at least one ...