СИГНАЛИЗАЦИЯ О МНОЖЕСТВЕ ЗНАЧЕНИЙ ВРЕМЕНИ ДЕКОДИРОВАНИЯ В МЕДИАФАЙЛАХ

Изобретение относится к области хранения медиаконтента и, в частности, к сигнализации о множестве значений времени декодирования в медиафайлах. Техническим результатом является снижение сложности вычислений при декодировании масштабируемых видеоданных. Указанный технический результат достигается тем, что обеспечивается возможность сигнализации о нескольких значениях времени декодирования для каждого сэмпла на уровне формата файла, что обеспечивает возможность использования различных значений времени декодирования для каждого сэмпла или подмножества сэмплов при декодировании полного потока и подмножества этого потока. Определяют блок альтернативного времени декодирования, предназначенный для сигнализации о нескольких значениях времени декодирования для каждого сэмпла. Такой блок может содержать компактную версию таблицы, которая позволяет индексировать от альтернативного времени декодирования до количества сэмплов, при этом альтернативное время декодирования - это время декодирования, которое ...

ЦИФРОВАЯ РАДИОВЕЩАТЕЛЬНАЯ ПРИЕМОПЕРЕДАЮЩАЯ СИСТЕМА И СПОСОБ ОБРАБОТКИ СИГНАЛА В ЭТОЙ СИСТЕМЕ

Настоящее изобретение относится к цифровой широковещательной, приемопередающей системе и к способу обработки сигналов в этой системе и более конкретно к цифровой широковещательной приемопередающей системе и способу обработки сигналов в этой системе, который может улучшать характеристики приема системы путем ввода известной последовательности в поток данных в системе частичного подавления боковой полосы (VSB) и последующей передачи потока данных с введенной известной последовательностью. Технический результат заключается в улучшении характеристик приема/передачи. Цифровой широковещательный передатчик имеет генератор случайных чисел для рандомизирования потока входных данных, который имеет нулевые байты, введенные в заданное положение, мультиплексор для вывода потока данных, сформированных путем ввода определенных известных данных в положение нулевых байтов рандомизированного потока данных, кодер для кодирования потока данных с выхода мультиплексора и радиочастотный преобразователь для модулирования ...

УСТРОЙСТВО КОДИРОВАНИЯ ВИДЕОСИГНАЛА, ПРЕДСТАВЛЯЮЩЕГО ИЗОБРАЖЕНИЯ, ПРИЕМНИК ТЕЛЕВИЗИОННОГО СИГНАЛА, ВКЛЮЧАЮЩЕГО ДАННЫЕ ЗАГОЛОВКОВ И ПОЛЕЗНЫЕ ДАННЫЕ В ВИДЕ СЖАТЫХ ВИДЕОДАННЫХ

Изобретение относится к системам обработки телевизионного сигнала высокой четкости. Устройство для кодирования телевизионного сигнала, соответствующего изображению, содержит схему сжатия, формирующую в соответствии с сигналами источника видеосигналов высокой четкости кодовые слова СW, имеющие иерархические уровни и представляющие сжатые видеоданные, и кодовые слова Т, определяющие типы данных, представленных кодовыми словами СW. Схема выбора приоритета, реагирующая на кодовые слова СW, Т, разбивает кодовые слова СW на последовательности кодовых слов высокого и низкого приоритета, которые соответствуют сжатым видеоданным соответственно большей или меньшей значимости с точки зрения воспроизведения изображений. Технический результат заключается в том, что процессор передачи, реагирующий на последовательности кодовых слов высокого или низкого приоритета, формирует блоки передачи высокого и низкого приоритета кодовых слов соответственно высокого и низкого приоритета. Каждый блок передачи содержит ...

УСТРОЙСТВО И СПОСОБ ПЕРЕДАЧИ И ПРИЕМА В СИСТЕМЕ ПЕРЕДАЧИ С МНОЖЕСТВОМ НЕСУЩИХ

Изобретение относится к системе передачи цифровых сигналов с множеством несущих и позволяет приемнику премного устройства получать требуемую информацию для настройки на требуемую частоту. Изобретение раскрывает, в частности, передающее устройство (400), содержащее модулятор (410) для модулирования каждого из множества потоков данных на поднесущих частотах соответствующей полосы частот в одной группе из одного или более частотных каналов, причем каждая из полос частот занимает не более заданной максимальной полосы пропускания, меньшей или равной ширине полосы пропускания канала, генератор (420) информации о полосе для генерирования информацию о полосе, определяющей полосы частот, соответствующие всем потокам данных, переносимым упомянутым частотным каналом, причем информация о полосе включает в себя индикатор о частоте настройки, указывающий частоту настройки, и индикатор типа частоты настройки, указывающий тип частоты настройки, указанный упомянутым индикатором частоты настройки, где упомянутый ...

УСТРОЙСТВО И СПОСОБ ОБРАБОТКИ ЗАШИФРОВАННОГО ПОТОКА ДАННЫХ В КРИПТОГРАФИЧЕСКОЙ СИСТЕМЕ

... 1. Устройство (3200) для обработки зашифрованного потока (3201) данных в криптографической системе, в которой данные (3204) дешифрования предусмотрены для дешифрования каждого сегмента (3202) зашифрованного потока (3201) данных для воспроизведения дешифрованного потока данных, ! причем устройство (3200) содержит ! первый блок (3209) определения для определения, в случае переключения из первого режима (1501) воспроизведения для воспроизведения потока (3201) данных во второй режим (1502) воспроизведения для воспроизведения потока (3201) данных, текущего положения воспроизведения в потоке (3201) данных; ! второй блок (3210) определения для определения начального положения для начала воспроизведения во втором режиме (1502) воспроизведения, основываясь на определенном текущем положении, при этом второй блок (3210) определения выполнен с возможностью определения начального положения для начала воспроизведения во втором режиме (1502) воспроизведения, основываясь на задержке (2703), с которой обеспечиваются ...

ПРИЁМНОЕ УСТРОЙСТВО И СПОСОБ ПРИЁМА

... 1. Приемное устройство, содержащее:первый блок обработки высокочастотного сигнала для обнаружения первой радиовещательной волны, передаваемой с использованием первого частотного диапазона, и выделения первого высокочастотного сигнала;второй блок обработки высокочастотного сигнала для обнаружения второй радиовещательной волны, передаваемой с использованием второго частотного диапазона, отличающегося от первого частотного диапазона, и выделения второго высокочастотного сигнала; ипо меньшей мере один местный гетеродин для генерирования сигнала местного гетеродина, используемого в первом блоке обработки высокочастотного сигнала и во втором блоке обработки высокочастотного сигнала.2. Приемное устройство по п.1,в котором по меньшей мере один местный гетеродин сконфигурирован с цепью PLL со схемой N-дробного деления частоты.3. Приемное устройство по п.2, содержащее:первый блок коммутации, выполненный с возможностью переключения между первым блоком обработки высокочастотного сигнала и вторым блоком ...

СПОСОБ ФОРМАТИРОВАНИЯ ПАКЕТА ЦИФРОВОГО ШИРОКОВЕЩАТЕЛЬНОГО ТРАНСПОРТНОГО ПОТОКА ДЛЯ УЛУЧШЕННОЙ ЭФФЕКТИВНОСТИ ПРИЕМА, ЦИФРОВОЕ ШИРОКОВЕЩАТЕЛЬНОЕ ПЕРЕДАЮЩЕЕ УСТРОЙСТВО И СПОСОБ ОБРАБОТКИ СИГНАЛОВ В НЕМ

... 1. Способ форматирования пакета цифрового широковещательного транспортного потока (TS), включающего в себя заголовок и полезные данные, при этом способ содержит этап, на котором вставляют известные данные вспомогательной опорной последовательности (SRS) в TS-пакет. ! 2. Способ по п.1, в котором пакет включает в себя поле адаптации, а SRS-данные вставляются, по меньшей мере, в часть поля адаптации. ! 3. Способ по п.2, в котором поле адаптации включает в себя необязательное поле, выборочно включаемое в часть необязательного поля, при этом SRS-данные вставляют, по меньшей мере, в часть поля адаптации, кроме части необязательного поля. ! 4. Способ по п.3, в котором необязательное поле выбирают из временной отметки программ (PCR), исходной временной отметки программ (OPCR), обратного счетчика склеивания, длины транспортных закрытых данных и длины расширения поля адаптации либо комбинации вышеозначенного. ! 5. Способ по п.1, в котором SRS-сигнал используют для процесса синхронизации и/или процесса ...

УСТРОЙСТВО ОБРАБОТКИ СИГНАЛОВ, СПОСОБ ОБРАБОТКИ СИГНАЛОВ И ПРОГРАММА

... 1. Устройство обработки сигналов, содержащее:детектор, выполненный с возможностью обнаружения сигнала преамбулы в мультиплексированном сигнале, полученном посредством мультиплексирования множества сигналов;демодулятор, выполненный с возможностью демодулирования заданного сигнала из мультиплексированного сигнала; иконтроллер, выполненный с возможностью обеспечения продолжения демодуляции демодулятором, при указании информацией различения, используемой для различения каждого из сигналов, содержащейся в сигнале преамбулы, обнаруженном детектором, на первый сигнал, и обеспечения остановки демодуляции демодулятором при указании информацией различений на второй сигнал.2. Устройство обработки сигналов по п.1, дополнительно содержащее:модуль изменения, выполненный с возможностью изменения интерпретации первого сигнала на интерпретацию в качестве второго сигнала, при интерпретации сигнала в качестве первого сигнала, на основе информации различения и изменения интерпретации второго сигнала на интерпретацию ...

МУЛЬТИПЛЕКСИРОВАНИЕ И ПЕРЕДАЧА НЕСКОЛЬКИХ ПОТОКОВДАННЫХ В СИСТЕМЕ РАДИОСВЯЗИ С НЕСКОЛЬКИМИ НЕСУЩИМИ

... 1. Способ широковещания и многопунктовой передачи данных в системе радиосвязи с несколькими несущими, заключающийся в том, что обрабатывают множество потоков данных для получения множества потоков символов данных, одного потока символов данных для каждого потока данных, выделяют элементы передачи каждому из множества потоков данных, причем каждый элемент передачи соответствует одному поддиапазону в одном периоде символа и может использоваться для передачи одного символа данных, отображают символы данных в каждом потоке символов данных на элементы передачи, выделенные соответствующему потоку данных, и формируют составной поток символов символами данных для множества потоков данных, отображенными на выделенные элементы передачи, причем каждый поток данных является независимо восстанавливаемым приемником на основе символов данных, включенных в составной поток символов для потока данных. 2. Способ по п.1, в котором дополнительно мультиплексируют символы дополнительной служебной сигнализации ...

ЦИФРОВАЯ РАДИОВЕЩАТЕЛЬНАЯ ПРИЕМО-ПЕРЕДАЮЩАЯ СИСТЕМА И СПОСОБ ОБРАБОТКИ СИГНАЛА В ЭТОЙ СИСТЕМЕ

... 1. Цифровой широковещательный передатчик, содержащий генератор случайных чисел, используемый для рандомизирования потока входных данных, в котором имеются нулевые байты, введенные в заданное положение; мультиплексор для вывода потока данных, сформированных путем ввода определенных известных данных в положение нулевых байтов рандомизированного потока данных; кодер для кодирования потока данных с выхода мультиплексора; и модулятор/радиочастотный преобразователь для модулирования кодированных данных, радиочастотного преобразования модулированных данных и передачи преобразованных данных. 2. Цифровой широковещательный передатчик по п.1, дополнительно содержащий генератор данных для создания известных данных и формирования последовательности, имеющей предопределенную комбинацию данных. 3. Цифровой широковещательный передатчик по п.1, в котором поток данных включает информацию о конкретном положении, в которое введены нулевые байты. 4. Цифровой широковещательный передатчик по п.3, в котором информация ...

Übertragung mit mehreren Auflösungen bei Verwendung von Mehrträgersignalen

Übertragung mit mehreren Auflösungen, insbesondere für Mehrträgersysteme

Television card for use with e.g. notebook computer, has personal computer memory card international association interface connected with signal decoder for transmitting analog/digital television signals and audio/video signal to computer

The card has radio frequency receivers (41) receiving digital and analog television signals (1, 2). Demodulators (42, 43) connected to the receivers demodulate and transmit the signals (1, 2), respectively. A signal decoder is connected with the demodulators and an audio/video signal receiver (44) for decoding the television signals and audio/video signals (3), which is received by the receiver (44) from a multimedia play-back device. A personal computer memory card international association (PCMCIA) interface is connected with the decoder for transmitting the signals (1-3) to a computer (5).

Verfahren zur hierarchischen Kodierung/Dekodierung eines digitalen Signals, und entsprechendes System zur Anwendung bei digitalem Fernsehen

Vorrichtung zum Übertragen farbiger Video-Standbilder über einen Signalkanal geringer Bandbreite

Schaltungsanordnung zur Demodulation eines Zwischenfrequenz-Videosignals

Anordnung zum Senden von ein digitalisiertes analoges Signal darstellenden Datenwörtern und eine Anordnung zum Empfangen der gesendeten Datenwörter.

Verfahren zum Codieren und Decodieren von Daten

Time multiplex frame detection

The method involves feeding resulting data (Xi) from a maximum likelihood detector (1) to a synchronisation detector (3). Then, from the synchronisation detector, the time frame of the data frame is derived from a synchronisation word (11). The time frame is fed to a channel decoder and a data demultiplexer.Reliability information (Lxi) generated from the maximum likelihood detector according to the soft output viterbi algorithm are fed to the synchronisation detector. The synchronisation word is derived with the help of the resulting data and the reliability information.

Steuerbare Antennendose zum selektiven Empfang von über ein Antennenkabel übertragenen Rundfunksignalen

Tuner arrangement and set top box

APPARATUS FOR RECOMBINING PRIORITIZED VIDEO DATA

Equipping a personal digital product with functions of recording and displaying of the digital video/audio multimedia

The invention provides a method for equipping personal digital product with functions of recording and displaying the digital video/audio multi-media, comprising: providing a modulated interlacing video signal and an analog audio signal for de-modulation and de-interlacing of the interlacing video signal; at the same time processing digital transformation of the analog audio signal for digitalizing the analog audio signal to obtain a digital audio signal; then compressing the de-interlaced video signal and the digital audio signal to obtain a compressed de-interlaced video signal and a compressed digital audio signal; putting the compressed de-interlaced video signal and the compressed digital audio signal under synchronous process to obtain a synchronized compressed video signal and compressed audio signal; finally, outputting the synchronized compressed video signal and compressed audio signal to a processing unit of digital apparatus for selecting from recording or displaying the digital ...

Multichannel-type radio frequency modulation circuit

Video bitstream washer

A system, method, and apparatus for correcting a corrupted video bitstream (120,220,320) using a video bitstream washer (130,230,330). The video bitstream washer of the present invention receives a corrupted video bitstream and produces a syntactically correct video bitstream (140,240,340) as an output using correction and concealment of the errors in the video bit-stream. The video bitstream washer may be placed in a network for receiving a corrupt video bitstream from an error-prone network (110,210,310) and providing a correct video bitstream to an error-free network (150), providing a correct video bitstream to a video decoder (250), or as an integrated bitstream washer and video decoder (330).

A configurable processor architecture

An error detection and correction system for a stream of encoded data

Demodulating digital video broadcast signals

A demodulator suitable for implementation in a single chip for demodulating digital video broadcast signals comprising data modulated on a multiplicity of spaced carrier frequencies, wherein an input broadcast signal is converted to a frequency sufficiently low to enable analog digital conversion of the signal, includes analog to digital conversion means 20 for converting the broadcast signal to a series of digital samples, real to complex conversion 22 means for converting each digital sample to a complex number value, Fourier transform means 24 for analysing the complex number values to provide a series of data symbol values for each carrier frequency, and signal processing means 301 for receiving the data symbol values and providing an output for decoding, and timing synchronisation means 26 for synchronising the Fourier Transform means with the symbol periods of the broadcast signal, including correlation means 50 (Fig 5 not shown) for receiving said data sample values and comprising ...

Device for detecting synchronization in a digital broadcasting receiving system

Digital broadcasting receiver and channel information registration processing method in digital braodcasting receiver

Mixed-media telecommunication call set-up

Method and apparatus for conveying information signals

PCT No. PCT/GB86/00783 Sec. 371 Date Jan. 25, 1988 Sec. 102(e) Date Jan. 25, 1988 PCT Filed Dec. 19, 1986 PCT Pub. No. WO87/06418 PCT Pub. Date Oct. 22, 1987.Video signals from a source are digitized and applied to a source coder which segregates the signals into four channels (CH1 to CH4) of progressively less visual significance. CH1 carries basic picture information at a relatively low resolution. CH2 to CH4 carry differential information at progressively higher resolutions. The four channels signals are applied to respective coders and the digital outputs are combined in a matrix with voltage levels falling off as visual significance decreases. Received signals, transmitted say by way of a satellite, are applied to a first, high level decoder which extracts the digital waveform for CH1 as DCH1. This is recoded and subtracted from the input to provide a signal to a decoder which recovers CH2 as DCH2, and so on. DCH1 to DCH4 are applied to a source decoder complementary to the coder to ...

Method, device and computer program for encapsulating partitioned timed media data using sub-track feature

Partitioned timed media data (e.g. video) to be streamed to a client's device is encapsulated in a stream, the data comprising timed samples (e.g. frames), each sample comprising a plurality of subsamples (e.g. tiles). After grouping several subsamples to form a group, at least two subsamples of the same group are selected and at least one track (306-2, 306-5) comprising the selected subsamples is created. For the created track(s), a sub-track box (fig. 15) can be created for each of the selected subsamples, at least one of the boxes comprising definitions and properties that are common to the selected sub-samples. Each of the created tracks is independently encapsulated in at least one media file. At least one of the sub-track boxes may comprise information to indicate that it is associated with a particular track providing tiling information. A group of samples or subsamples may be linked to at least one tile.

Improvements in decoders for many-carrier signals, in particular in DVB-T receivers

A system and method for providing a private mosaic

Broadcast receiver and method

Network terminator

Demoulding digital video broadcast siginals

A variable encoding rate puncturing coder

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

DEVICE AND PROCEDURE FOR THE ILLUSTRATION OF A PICTURE ON BLOCKS FOR THE ROBUST ERROR CORRECTION IN A LOSSY TRANSMISSION ENVIRONMENT

PROCEDURE AND SYSTEM FUR A HOUSE NETWORK

DEVICE FOR THE TRANSMISSION OF DVB/MPEG SIGNALS WITH ADAPTIVE CODING AND MODULATION

DEVICE AND PROCEDURE FOR THE LOCALIZATION TRANSFER ERROR FOR ROBUST ERROR CORRECTION IN A LOSSY TRANSMISSION ENVIRONMENT

MULTI-CARRIER TRANSMISSION WITH VARIABLE SYMBOL PART AND PROTECTION INTERVAL

TV HOME RECEIVER

PROCEDURE FOR TRANSFERRING DIGITAL HDTV SIGNALS

PROCEDURE AND DEVICE FOR THE CLOCK PULSE TRANSMISSION BY CABLES OVER LARGE DISTANCES.

SIGNAL PROCESSING SYSTEM

PROCEDURE FOR THE PRODUCTION OF FREQUENZ-UND/ODER PHASE CHANGES WITH ALTERNATING CURRENTS, FOR EXAMPLE FOR USE WITH QUADRATURE AMPLITUDE MODULATION (QAM) AND FOR SAMPLINGS.

AUDIO/CVIDEO PHOTOGRAPH TRANSFER EQUIPMENT

TRANSMISSION WITH SEVERAL DISSOLUTIONS, IN PARTICULAR FOR MULTI-CARRIER SYSTEMS

TRANSMISSION WITH SEVERAL DISSOLUTIONS, IN PARTICULAR FOR MULTI-CARRIER SYSTEMS

�BERTRAGUNG WITH SEVERAL AUFL�SUNGEN

VERFAHREN ZUM DEMODULIEREN EINES AMPLITUDENMODULIERTEN VIDEOSIGNALS

TRANSMISSION WITH SEVERAL DISSOLUTIONS WHEN USING MULTI-CARRIER SIGNALS

�BERTRAGUNG WITH SEVERAL AUFL�SUNGEN, IN PARTICULAR WHEN MEHRTR�GERSIGNALEN

TRANSMISSION WITH SEVERAL DISSOLUTIONS WITH MULTI-CARRIER SIGNALS

TRANSMISSION WITH SEVERAL DISSOLUTIONS AS WELL AS ERRORCORRECTING CODING, WITH MULTI-CARRIER SIGNALS

TRANSMISSION WITH SEVERAL DISSOLUTIONS WITH MULTI-CARRIER SIGNALS

SYSTEM FOR TRANSMISSION AND DEVICE TO THE RECEIPT OF DIGITAL TELEVISION SIGNALS

TRANSMISSION SYSTEM WITH LATTICE-CODED QAM

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

REAR WALL-KIND-COMPATIBLE TRANSMISSION SYSTEM FOR DVBS STANDARD

Data processing device and data processing method

This technology relates to a data processing device and a data processing method that enable convenience to be further improved when a plurality of transmission formats become available to a transmission frame. A data processing device installed in a transmitting-side facility processes a transmission frame to be transmitted as a broadcast signal to thereby add identification information for identifying the transmission format of the transmission frame, whereas a data processing device installed in a receiving-side facility processes a transmission frame, the transmission format of which is identified, on the basis of identification information added to the transmission frame to be transmitted as a broadcast signal. This technology is applicable, for example, as a method for a test stream.

Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system

Method and apparatus for signal processing

Method and apparatus for signal processing

Terrestrial digitial multimedia/television broadcasting system

Hdtv trellis decoder architecture

Apparatus for demodulating and decoding video signals

Mixed-media telecommunication call set-up

Variable encoding and detection apparatus and methods

Clipping for cross-component prediction and adaptive color transform for video coding

A device for encoding or decoding video data may clip first residual data based on a bit depth of the first residual data. The device may generate second residual data at least in part by applying an inverse Adaptive Color Transform (IACT) to the first residual data. Furthermore, the device may reconstruct, based on the second residual data, a coding block of a coding unit (CU) of the video data.

Method and apparatus for communicating multilevel modulated data using concatenated coding

Voice gateway with downstream voice synchronization

METHOD AND APPARATUS FOR COMMUNICATING DIGITAL DATA USING TRELLIS CODED QAM

Audio/video and data signal redistribution system

AUDIO/VIDEO RECORDER/TRANSCEIVER

VSB COMMUNICATION SYSTEM

A VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according to a number of the supplemental data packets being transmitted. The VSB reception system detects the required multiplexing information from the field synchronization signal or the supplemental data and decodes the multiplexed data by using the null sequence and the detected multiplexing information, as well as demultiplexes the multiplexed data into the MPEG data and the supplemental data.

MULTICHANNEL-TYPE RADIO FREQUENCY MODULATION CIRCUIT

A multichannel-type radio frequency modulation circuit for a set-top box, comprising a switch turned on/off in response to a switching voltage for passing/blocking a radio frequency signal from a radio frequency input terminal to a radio frequency output terminal, a modulation part enabled in response to operating voltages for modulating input audio signals and video signals into television signals at a plurality of channels, respectively, and a mixer for mixing the television signals modulated by the modulation part respectively with the radio frequency signal passed by the switch and outputting the resulting signals respectively to connected televisions via the radio frequency output terminal. The multichannel-type radio frequency modulation circuit is configured in a multichannel modulation manner in the set-top box such that a plurality of televisions receive broadcasting signals at different channels via the radio frequency modulation circuit.

BIT STREAM CONVERSION SYSTEM

A bit-stream converter (104) capable of converting a first synchronous compressed bit-stream of data at a first sampling rate to second synchronous compressed bit-stream frame of data at a second sampling rate is disclosed. The bit-stream converter architecture may include a payload length detector (304) and a zero stuffing unit in signal communication with the payload length detector. The zero stuffing unit (306) is capable of zero stuffing section responsive to the payload length detector detecting the payload length.

DIGITAL BROADCAST TRANSMITTING AND RECEIVING SYSTEM HAVING AN IMPROVED RECEIVING PERFORMANCE AND SIGNAL PROCESSING METHOD THEREOF

... ²²²A digital broadcast transmitting and receiving system and a signal processing ²method thereof that improves the receiving performance of the system. A ²digital broadcast transmitter can include a randomizer to receive and ²randomize a data stream into a specified position of which stuff bytes are ²inserted, a stuff -byte exchange unit to generate known data having a ²predefined pattern and insert the known data into the specified position of ²the data stream into which the stuff bytes are inserted, an encoder to encode ²the data stream output from the stuff-byte exchange unit for an error ²correction, and a modulator and RF converter to modulate the encoded data ²stream, RF-convert the modulated data stream and transmit the RF-converted ²data. The digital broadcast receiving performance can be improved even in an ²inferior multi-path channel by detecting the known data from the received ²transmission and using the known data for synchronization and equalization in ²a digital broadcast ...

APPARATUS, SYSTEMS AND METHODS FOR PROVIDING IN-BAND ATSC VESTIGIAL SIDEBAND SIGNALING OR OUT-OF-BAND SIGNALING

... ²²²Systems, methods, apparatus and computer program products are provided for ²signaling a deterministic mapping corresponding to a service. The ²deterministic mapping is inserted within an in-band ATSC vestigial sideband ²broadcast signal or an out-of-band signal and transmitted to receivers capable ²of consuming the service.² ...

METHOD FOR FORMATTING DIGITAL BROADCAST TRANSPORT STREAM PACKET FOR IMPROVED RECEIVING PERFORMANCE, DIGITAL BROADCAST TRANSMITTER, AND SIGNAL PROCESSING METHOD THEREOF

A digital broadcast transmitter and a stream processing method of a digital broadcast transmitter are provided. The transmitter includes a multiplexer for constructing a transmission stream including a stream and additional information used to process the stream, a Reed-Solomon encoder for performing Reed-Solomon encoding on the transmission stream, an interleaver for interleaving the Reed-Solomon encoded transmission stream and a Trellis encoder for performing Trellis encoding on the interleaved transmission stream. The stream is processed so that the additional information is disposed in a predetermined position of the transmission stream.

DIGITAL TRANSMISSION AND RECEPTION DEVICES FOR TRANSMITTING AND RECEIVING STREAMS, AND PROCESSING METHODS THEREOF

A digital reception device comprises a synchronizer for receiving and synchronizing a stream having additional data, an equalizer which equalizes the synchronized stream and a forward error correction (FEC) processor for performing forward error correction of the equalized stream. A detector is provided for detecting information regarding the additional data transmitted through a predetermined channel. At least one of the equalizer and the FEC processor uses information detected by the detection unit.

TRANSMISSION STREAM GENERATING DEVICE FOR GENERATING TRANSMISSION STREAM WHICH ADDITIONAL DATA IS STUFFED IN A PAYLOAD AREA OF A PACKET, DIGITAL BROADCAST TRANSMITTING/RECEIVING DEVICE FOR TRANSMITTING/RECEIVING THE TRANSMISSION STREAM, AND METHODS THEREOF

A digital broadcast receiving apparatus comprises a demodulator for receiving and demodulating a stream transmitted from a digital broadcast transmitting apparatus, an equalizer for equalizing the demodulated stream, and a data processing unit for decoding the equalized stream. The stream is interleaved in a state that supplementary data which are processed to be robust against errors are inserted into the entire payload region of at least one packet constituting the stream, and is transmitted from the digital broadcast transmitting apparatus.

DIGITAL BROADCAST TRANSMITTER/RECEIVER HAVING AN IMPROVED RECEIVING PERFORMANCE AND SIGNAL PROCESSING METHOD THEREOF

A digital broadcast receiver comprises a tuner for receiving a stream, a demodulator for demodulating the received stream and an equalizer for equalizing the demodulated stream. The stream is transmitted from a digital broadcast transmitter which includes a Trellis encoder having a first memory and a first multiplexer (MUX) for outputting an input signal or a value stored in the first memory according to a control signal and a first adder for adding a value output by the first MUX and the value stored in the first memory. The Trellis encoder further includes a second memory, a third memory to be connected to the second memory and store a value shifted from the second memory, a second MUX for outputting an input signal or a value stored in the third memory according to the control signal, and a second adder for adding a value output by the second MUX and the value stored in the third memory and providing the second memory with the added value.

Low-latency remote display rendering using tile-based rendering systems

Apparatus, systems and methods for low latency remote display rendering using tile-based rendering systems are disclosed. In one implementation, a system includes a network interface and a content source coupled to the network interface. The content source being capable of rendering at least one tile of a tiled image, encoding the at least one tile, and providing the at least one encoded tile to the network interface before all tiles of the tiled image are rendered.

Audio video device with externally bundled tv tuner

A CE device is vended with a TV tuner module which may be provided in an envelope in the same shipping container along with instructions to the consumer to connect the tuner module to the CE device if TV capabilities are desired and to return the module for a rebate if TV capabilities are not desired.

Information recording medium, device and method for playing back 3d images

A recording medium allows random access to be performed in playing back 3D graphics. The recording medium includes a digital stream area where a digital stream including temporally-arranged GOP pairs is recorded, and a map information area where map information is recorded. The map information indicates entry addresses in one to one correspondence with entry times on a time axis of the digital stream, and each entry address shows a beginning of a corresponding GOP pair region in the digital stream area. Each GOP pair includes first-type and second-type GOPs, wherein each first-type GOP is data indicating a plain view picture set to be played back from a corresponding entry time, and each second-type GOP is data to be played back with a corresponding first-type GOP to provide a stereoscopic view. The data indicates a difference between a stereoscopic picture set and the plain view picture set.

Virtual channel table for a broadcast protocol and method of braodcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

Dtv transmitting system and receiving system and method of processing broadcast data

A digital television receiving system includes a frame encoder, a data randomizing and expanding unit, a group formatter, a block processor, a deinterleaver, and a multiplexer. The frame encoder encodes an enhanced data frame for error correction. The data randomizing and expanding unit randomizes the encoded enhanced data and expands the randomized enhanced data. The group formatter forms a group of enhanced data having head, body, and tail regions and inserts the expanded data and transmission parameters into the body region. The block processor codes the group of enhanced data, and the deinterleaver deinterleaves the coded enhanced data. The packet formatter formats the deinterleaved enhanced data into enhanced data packets.

Content transmitting apparatus, content receiving apparatus, content transmission program, content reception program, content transmitting method, and content receiving method

Provided is a transmitting apparatus, a receiving apparatus, and the like that can switch a content even if the reception conditions of a plurality of streams are deteriorated at the same time, and that have reduced power consumption and an increased packet loss tolerance. The receiving apparatus includes: a first reception section for receiving a first stream by predetermined unit and extracting first content data; a control section for determining whether or not the first stream has been normally received, with respect to each predetermined unit, and for, if the first stream has not been normally received, issuing an instruction to start reception of a second stream to be transmitted later than the first stream; a second reception section for, when the second reception section has received the instruction, starting reception of the second stream, receiving the second stream corresponding to the predetermined unit of the first stream that has not been received, and extracting second content data; and a reproduction control section for, if the first stream has not been received, reproducing a content for alternative display based on the second content data, and for, if the first stream has been received, reproducing a content for normal display based on the first content data at the same timing as a timing to reproduce the content for alternative display.

Software Defined Radio for Universal Demodulation of Digital and Analog TV Signals

A Software Defined Radio (SDR) subsystem capable of supporting a multiple communication standards and platforms for modulation, demodulation and trans-modulation of an input signal is provided. The SDR subsystem includes a Signal Conditioning Cluster (SCC) unit that includes a signal conditioning CPU adapted for sample based signal processing, a Signal Processing Cluster (SPC) unit that includes a signal processing CPU adapted for block based signal processing, and a Channel Codec Cluster (CCC) unit that performs a channel encoding or a channel decoding operation.

Image processing apparatus and control method thereof

An image processing apparatus and control method are provided. The image preprocess apparatus includes an image receiver which receives an analog broadcasting signal; an image processor which converts the analog broadcasting signal into a digital broadcasting signal; and a filtering unit which selectively performs a low pass filtering on the analog broadcasting signal to filter a frequency higher than a preset frequency and transmits the selectively-filtered analog broadcasting signal to the image processor corresponding to a reception of the analog broadcasting signal by air.

System and method for providing conditional access in a satellite television system

A network device may pair with a particular satellite dish by storing a security key uniquely associated with the particular satellite dish. The network device may then receive encrypted data from the particular satellite dish, and decrypt the received encrypted data utilizing the security key. One or more circuits of the network device may be operable to prevent the network device from decrypting data from any satellite dish other than the particular satellite dish. The network device may be operable such that the security key is the only key that the network device can utilize for decrypting signals received via a particular interface and/or from a particular address. One or more circuits collocated with a satellite dish may be operable to encrypt data utilizing a security key stored in the one or more circuits. The security key may be unique to the one or more circuits and/or satellite dish.

Method and system for providing satellite television service to a premises

Methods and systems for providing satellite television service to a premises may comprise receiving satellite television signals utilizing a satellite dish, converting received satellite signals to internet protocol (IP) signals, and wirelessly communicating the IP signals into a premises to which the satellite dish corresponds. The IP signals may, for example, conform to a multimedia over cable alliance (MoCA) standard or a IEEE 802.11x standard. The wirelessly communicating may comprise magnetic coupling. The received satellite signals may, for example, be converted to IP signals utilizing an IP low-noise block downconverter (IP-LNB) which may comprise full-band capture receivers. The wireless communication of the IP signals may, for example, be within a wireless network of the dwelling or may be independent of a wireless network of the dwelling. The wirelessly communicated IP signals may be beam-formed and may be communicated wirelessly over one or more industrial, scientific, and medical (ISM) bands.

System and Method in a Broadband Receiver for Efficiently Receiving and Processing Signals

A system and method in a broadband receiver (e.g., a satellite television receiver) for efficiently receiving and processing signals, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.

Method and apparatus for using 802.11 wlans in tv white space

A method and apparatus for using 802.11 Wireless LANs in TV white space are provided that additionally allows coexistence with non-802.11 devices in the same spectrum space. The method and apparatus extend concepts used in traditional 802.11 applications in the MAC and PHY layers so that WLANs can function over TV white space channels. The method and apparatus also facilitates coexistence of non 802.11 devices and existence with other 802.11 applications by extending the Enhanced Distributed Channel Access mechanism used to provide quality of service. An OFDM system with fixed subcarrier spacing is suggested to accommodate spectrum characteristics (variable center frequency and channel bandwidth) of the TVWS.

Concurrent Communicating of Multimedia Information in a Multistandard Wireless Communication System

Methods and systems for communicating information in a network are disclosed herein and may include receiving, at a mobile terminal, a first media signal via a first downlink communication path. A second media signal may be simultaneously received at the mobile terminal via a second downlink communication path. The first media signal and the second media signal may comprise the same media content. The first media signal received via the first downlink communication path and the second media signal received via the second downlink communication path may be selected in the mobile terminal for processing. The selection may be based on at least one downlink channel condition indicator corresponding to the first media signal or the second media signal.

Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

COFDM digital television receivers for iterative-diversity reception

Receivers with capability for iterative-diversity reception of COFDM digital television transmissions of repeated similarly coded data are described. Also described are receivers with capabilities for receiving COFDM digital television transmissions in which earlier transmissions of coded data are later followed by subsequent transmissions of the same data differently coded. The receivers use maximal-ratio code combining techniques for repeated components in the COFDM digital television transmissions. The receivers use turbo decoding techniques for concatenated coding of data in the COFDM digital television transmissions.

Digital broadcasting systems using parallel concatenated coding of bit-complementary bitstreams

A digital television (DTV) system uses parallel concatenated coding (PCC), together with QAM constellations for modulating OFDM carriers. A first encoder responds to ONEs' complemented bits of randomized data to generate a first component of PCC. A second encoder responds to delayed bits of the randomized data to generate a second component of PCC. A constellation mapper generates QAM symbols responsive to successive time-slices of the first component of the PCC interleaved with successive time-slices of the second component of the PCC. An OFDM modulator generates a COFDM modulating signal responsive to the QAM symbols. In a receiver for the DTV system, the second component of the PCC and delayed first component of the PCC are iteratively decoded. Soft bits from the second component and delayed first component of the parallel concatenated coding are code-combined to supply soft randomized data used in that iterative decoding.

Receivers for COFDM digital television transmissions

A receiver of COFDM digital television signals includes an inner decoder for iterative soft-decision decoding of concatenated convolutional coding (CCC) and an outer decoder for Reed-Solomon (RS) coding. The receiver generates error flags for identifying code symbols to be erased before the output symbols from the inner decoder are byte de-interleaved and supplied to the outer decoder. Generation of those flags depends on soft decoding results from the inner decoder. The method of locating errors ascribes to each byte supplied to the outer decoder for RS coding the highest lack-of-confidence level specified by the soft data bits associated with that byte. The method is described as being extended to locate byte errors in plural-dimension cross-interleaved Reed-Solomon codes (CIRC) apt to be employed in DTV broadcasting to mobile and handheld receivers.

Method and Apparatus for Communicating Electronic Service Guide Information in a Satellite Television System

Aspects of a method and apparatus for communicating electronic service guide information in a satellite television system are provided. A satellite communication system may receive a signal via an interface to a satellite dish, and receive data from a network via a second interface (e.g., an interface to a LAN or a WAN, such as the Internet). The satellite communication system may be operable to channelize the received satellite signal into a plurality of channels, wherein a first channel of the plurality of channels carries electronic service guide (ESG) data. The satellite communication system may select which of the plurality of channels to input to a demodulator based, at least in part, on whether ESG data is available via the second interface. A second channel carrying media data may be input to the demodulator while the ESG data is available via the second interface.

Transmission stream generating device for generating transmission stream which additional data is stuffed in a payload area of a packet, digital broadcast transmitting/receiving device for transmitting/receiving the transmission stream, and methods thereof

A transmission stream (TS) generating apparatus includes an adaptor which receives general data and generates a stream having a plurality of packets, and which provides adaptive field in some of the plurality of packets, and an inserter which inserts additional data into all the payload areas of some of the plurality of packets that are not provided with the adaptive fields. Because additional data is transmitted, without requiring adaptive field header in certain packet, a data transmission rate is increased.

Remote control video modulator

A video modulator is presented. The modulator includes a video input interface, a video modulation circuit, a video output interface, a communication interface, and control circuitry. The video input interface is configured to receive a video signal to be modulated, the video modulation circuit is configured to modulate the video signal, and the video output interface is configured to transmit the modulated video signal. The communication interface is configured to receive a command via a communication link to control the video modulator. The control circuitry is configured to receive the command from the communication interface and to control at least one of the video input interface, the video modulation circuit, and the video output interface based on the command.

System and Method of Processing a Satellite Signal

A system includes a converter to receive a receiving a satellite signal at first transport frequencies and to convert the satellite signal to second transport frequencies and a processor. The processor removes a radio frequency portion from the satellite signal without altering a sequence of media contents of a moving picture experts group portion of the satellite signal and without altering a quality of the media contents of the moving picture experts group portion. The processor determines whether the media contents include an error and corrects the error in the moving picture experts group portion with error correction data of the satellite signal. The processor encrypts the media contents to produce an encrypted digital moving picture experts group transport stream signal. The processor also sends the encrypted digital moving picture experts group transport stream signal to a modulator. 1. A method comprising:receiving at a receiver from a satellite dish a satellite signal;removing an initial radio frequency portion from the satellite signal without altering a sequence of media contents of a moving picture experts group portion of the satellite signal and without altering a quality of the media contents of the moving picture experts group portion;removing an initial conditional access portion from the satellite signal without altering the sequence of media contents of the moving picture experts group portion of the satellite signal and without altering a quality of the media contents of the moving picture experts group portion;decoding the satellite signal at the receiver to produce a digital moving picture experts group transport stream signal that includes the moving picture experts group portion;correcting an error in the moving picture experts group transport stream signal using error correction data of the satellite signal to generate a corrected digital moving picture experts group transport stream signal;encrypting the corrected digital moving picture ...

Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

Real-time packet transforms to avoid re-transmissions

There exists a need to reduce re-transmission delays in real time feeds (such as video) by sending the packet with sufficient repair/recovery information inside the packet container so the relaying stations and/or the receiving devices can fix errors in transmission by perusing the contents of the packet and the repair information, and modify the packet and then relay it. By providing the relaying station the ability to fix the error, retransmission of the packet is avoided along each relay station along the network path from source to destination and also by receiving devices that would otherwise request a re-transmission. This application teaches a method so real time streams (e.g. video) may be more efficiently transported over a CSMA based network.

Method and Apparatus for Cross Polarization and Cross Satellite Interference Cancellation

A method and apparatus in which a Tap-Weight Computer (TWC) calculates a Tap-Weight Vector (TWV). The TWV is coupled to a register in each of a plurality of adaptive filter modules. Each such adaptive filter module includes several adaptive filters that each include a tapped delay line. The input to the tapped delay line of each such adaptive filter is one of a plurality of potential interfering signals. The TWV controls the weighting of the outputs from the taps off the delay line. The weighted outputs from each tapped delay line are then subtracted from a received signal which potentially includes interference from the potential interfering signals. The TWC is multiplexed to each of the plurality of adaptive filters so that each adaptive filter is loaded with a TWV calculated by the TWC to reduce the amount of interference contributed by a particular potential interfering signal coupled to an input to that particular adaptive filter. In one embodiment, a plurality of such adaptive filter modules share the same TWC.

Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.

TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, RECEPTION METHOD, DISPLAY DEVICE, AND DISPLAY METHOD

A transmission device including circuitry is provided. The circuitry is configured to apply photoelectric conversion characteristics to high dynamic range video data to obtain transmission video data. The circuitry is configured to transmit a container including a video stream obtained by encoding the transmission video data. The circuitry is configured to insert type information to designate the type of conversion characteristics corresponding to the applied photoelectric conversion characteristics for photoelectric conversion of the transmission video data into a layer of the video stream and/or a layer of the container. The type of the conversion characteristics designated by the type information is determined regardless of luminance of a display. 1. A reception device , comprising:a high definition multimedia interface configured to receive first video data of a first high dynamic range video and first characteristic information for an electro-optical conversion of the first video data, the first video data received by the high definition multimedia interface being uncompressed, the first video data being obtained by applying a photoelectric conversion characteristic to first high dynamic range video input data, the first characteristic information indicating a type for the electro-optical conversion of the first video data that corresponds to a high dynamic range curve, the high dynamic range curve including a first segment of a non-high dynamic range gamma curve and a second segment that diverges from the non-high dynamic range gamma curve;reception circuitry configured to receive second video data of a second high dynamic range video and second characteristic information for electro-optical conversion of the second video data, the second video data received by the reception circuitry being compressed;a video decoder configured to decode the compressed second video data received by the reception circuitry;electro-optical conversion circuitry configured to ...

EMERGENCY NOTIFICATION IN A NETWORK ENVIRONMENT

A content management resource transmits a received digital data stream in a respective network data channel to one or more subscribers. The content management resource receives an emergency notification control signal, which indicates occurrence of an emergency message. In response to receiving the emergency notification control signal, the content management resource transmits the emergency message in the digital data channel to the one or more subscribers in lieu of transmitting the received digital data stream of content in the data channel to the one or more subscriber. Thus, a subscriber can tune to a particular channel to play back selected content and be apprised, via receipt of the message over the particular channel, of a corresponding condition such as an emergency. 1. A method comprising:producing first content access information, the first content access information indicating encoded segments of content available for retrieval by a subscriber device;in response to detecting occurrence of an emergency, producing second content access information, the second content access information indicating availability of encoded segments of an emergency notification; andtransmitting the second content access information to the subscriber device in the network environment, the second content access information indicating to retrieve the encoded segments of the emergency notification in lieu of indicating to retrieve the encoded segments of content.2. The method as in further comprising:subsequent to playing back a portion of the encoded segments of content, as specified by the second content access information, receiving input from the subscriber device requesting retrieval of the encoded segments of the emergency notification; andin accordance with the input from the subscriber device requesting retrieval of the encoded segments of the emergency notification, initiating transmission of the encoded segments of the emergency notification to the subscriber device over ...

Method and apparatus for detecting video playability

System and methods related to video information distribution are provided. The system may obtain a video source address. The system may receive a video segment of a video stream from a remote server configured with the video source address. The system may parse the video segment for header information. The system may determine that a video corresponding to the video source address is playable on a remote device in response to the header information being included in the video segment. The system may store the video source address in a database. The database may include a plurality video addresses corresponding to respective videos that are playable on the remote device.

DTV RECEIVING SYSTEM AND METHOD OF PROCESSING DTV SIGNAL

A digital television (DTV) receiving system includes an information detector, a resampler, a timing recovery unit, and a carrier recovery unit. The information detector detects a known data sequence which is periodically inserted in a digital television (DTV) signal received from a DTV transmitting system. The resampler resamples the DTV signal at a predetermined resampling rate. The timing recovery unit performs timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence. The carrier recovery unit performs carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence. 110-. (canceled)11. A method of processing broadcast data in a broadcast receiver , the method comprising: first encoding service data to add parity data,', 'second encoding the first-encoded service data at a code rate,', 'first interleaving the second encoded service data,', 'second interleaving the first interleaved service data,', 'encoding signaling data for signaling the service data,', 'interleaving a part of the encoded signaling data, wherein positions of data in a fore part of the encoded signaling data are maintained and positions of data in a rear part of the encoded signaling data are changed, and', 'building a frame including a first region and a second region, wherein the first region of the frame begins with a synchronization symbol and the second region of the frame includes the second-interleaved service data;, 'receiving a broadcast signal being generated by'}demodulating data of the frame in the received broadcast signal;decoding the encoded signaling data in the demodulated data; anddecoding the second encoded service data in the demodulated data.12. The method of claim 11 , wherein the signaling data includes information on how the service data are encoded.13. The method of claim 11 , wherein the signaling data further ...

METHODS, INFORMATION PROVIDING SYSTEM, AND RECEPTION APPARATUS FOR DISTRIBUTION OF AT LEAST ONE CONTENT VERSION

An information providing system, reception apparatus, and methods thereof are provided for providing content data. The method for providing content includes generating the content data. A digital television pre-broadcast signal, including the content data, is generated. At least one portion of the digital television pre-broadcast signal is extracted. The at least one portion of the digital television pre-broadcast signal is packaged into one or more Internet Protocol (IP) data packets. A digital television broadcast signal, including the remainder of the digital television pre-broadcast signal, is generated. The one or more IP data packets is provided via a communication network. The digital television broadcast signal is provided on a predetermined radio frequency (RF) channel. 1. A method of an information providing system for providing content to a reception apparatus , the method comprising:generating content data;generating a digital television pre-broadcast signal, including the content data;extracting, by circuitry of the information providing system, at least one portion of the digital television pre-broadcast signal;packaging, by the circuitry, the at least one portion of the digital television pre-broadcast signal into one or more Internet Protocol (IP) data packets;generating, by the circuitry, a digital television broadcast signal, including the remainder of the digital television pre-broadcast signal;providing the one or more IP data packets via a communication network; andproviding the digital television broadcast signal on a predetermined radio frequency (RF) channel.2. The method of claim 1 , wherein the step of generating the digital television pre-broadcast signal comprises:generating a transport stream, including the content data; andapplying forward error correction to the generated transport stream.3. The method of claim 1 , wherein the step of generating the digital television broadcast signal comprises:modulating the remaining portion of the ...

APPARATUS AND METHOD FOR DISPLAYING CONTENT

A system that incorporates teachings of the present disclosure may include, for example, a set-top-box (STB) having a controller to join a multicast group having an associated multicast address, wherein the multicast address is associated with a first content type of a plurality of content types, access encoded content associated with the first content type from the multicast address, wherein the encoded content is transmitted by at least one source associated with the multicast group to the multicast address, decode the accessed encoded content, and display the decoded content on a channel mapped to the multicast address. Other embodiments are disclosed. 1. A set-top-box , comprising:a processor; and communicating with a content network via a local gateway device of a first local area network;', 'displaying a menu comprising a plurality of icons associated with content that is available for viewing;', 'receiving a selection of a first icon of the plurality of icons, wherein the first icon is associated with a video camera that is coupled to a second local area network;', 'receiving an authorization from the second local area network to join a multicast group associated with the video camera;', 'receiving encoded video content captured by the video camera responsive to receiving the authorization, wherein the encoded video content is associated with a multicast address of the multicast group;', 'decoding the encoded video content to generate decoded content;', 'displaying the decoded content on a television channel that is mapped to the multicast address by the content network;', 'receiving a request from a remote media device for access to the decoded content of the television channel that is mapped to the multicast address for the video camera, wherein the remote media device is outside of the first local area network;', 'authenticating the remote media device to access the television channel responsive to the request; and', 'enabling the remote media device to ...

Broadcast receiving apparatus, broadcast receiving method, and contents outputting method

A broadcast receiving apparatus includes: a digital broadcast receiver configured to receive digital broadcasting in which contents are transmitted; a network transceiver configured to execute network communication; a data string converter configured to perform a mixing process for creating a new coded data string based on a coded data string of the received contents and a coded data string acquired by the network transceiver; a digital interface configured to output the contents to external equipment; and a controller configured to determine a state of the network communication of the external equipment. The state of the network communication of the external equipment includes a first state in which the network communication is in a communicable state and a second state in which the network communication is in an uncommunicable state. In accordance with the determined state of the network communication, the digital interface performs three types of output operations.

CUSTOM DATA INDICATING NOMINAL RANGE OF SAMPLES OF MEDIA CONTENT

A media processing tool adds custom data to an elementary media bitstream or media container. The custom data indicates nominal range of samples of media content, but the meaning of the custom data is not defined in the codec format or media container format. For example, the custom data indicates the nominal range is full range or limited range. For playback, a media processing tool parses the custom data and determines an indication of media content type. A rendering engine performs color conversion operations whose logic changes based at least in part on the media content type. In this way, a codec format or media container format can in effect be extended to support full nominal range media content as well as limited nominal range media content, and hence preserve full or correct color fidelity, while maintaining backward compatibility and conformance with the codec format or media container format. 120.-. (canceled)21. One or more computer-readable media having stored thereon computer-executable instructions for causing a computing system , when programmed thereby , to perform video processing operations , wherein the one or more computer-readable media are selected from the group consisting of volatile memory , non-volatile memory , magnetic disk , CD-ROM , and DVD , the video processing operations comprising: [{'sup': 'n', 'full range characterized by values from 0 . . . 2−1 for samples of bit depth n; and'}, 'a limited range characterized by values in a sub-range of the full range; and, 'determining range data for encoded video content, wherein the range data indicates nominal range of samples of the encoded video content as video content type for input video to encoding, the samples of the encoded video content having a sample depth that indicates an available range of values of the samples of the encoded video content, wherein the nominal range is a range of values, within the available range for the sample depth of the samples of the encoded video content ...

DTV RECEIVING SYSTEM AND METHOD OF PROCESSING DTV SIGNAL

A digital television (DTV) receiving system includes an information detector, a resampler, a timing recovery unit, and a carrier recovery unit. The information detector detects a known data sequence which is periodically inserted in a digital television (DTV) signal received from a DTV transmitting system. The resampler resamples the DTV signal at a predetermined resampling rate. The timing recovery unit performs timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence. The carrier recovery unit performs carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence. 110-. (canceled)11. A method of processing broadcast data in a broadcast transmitter , the method comprising:encoding service data to add parity data;first interleaving the encoded service data;second interleaving the first interleaved service data;encoding signaling data for signaling the encoded service data;permutating a part of the encoded signaling data, wherein positions of data in a fore part of the encoded signaling data are maintained and positions of data in a rear part of the encoded signaling data are changed in the permutating step;building a frame including a first region and a second region in symbol units,wherein the first region of the frame is beginning with a synchronization symbol which is followed by first multiple symbols being generated from different PN sequences,wherein the first multiple symbols are followed by second multiple symbols including information for the service data, andwherein the second region of the frame includes the service data; andtransmitting a broadcast signal including data of the frame.12. The method of claim 11 , wherein the signaling data include information on how the service data are encoded.13. The method of claim 11 , wherein the signaling data further include information on a type of the ...

METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding service data according to a 16200 bit codeword and a 11/15 code rate based on addresses in a parity check matrix, wherein the encoded service data comprises information bits and parity bits; building at least one signal frame by mapping the encoded service data; modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) scheme; and transmitting broadcast signals having the modulated data, wherein the encoding of the service data comprises: initializing the parity bits, adding the information bits to the parity bits of which addresses are based on values of entries in each row of the parity check matrix, wherein a row of the parity check matrix corresponds to a 360 bit group of the information bits. 2. The method of claim 1 ,wherein the addresses of the parity bits are represented as q(i,j,1), andwherein q(i,j,1)=q(i,j,0)+Q_ldpc*1 (mod 4320)wherein q (i,j,0) is a value of a j-th entry in an i-th row of the parity check matrix, Q_ldpc is 12, 1 is an index of each information bit in the 360 bit group.4. The method of claim 3 ,wherein the addresses of the parity bits are represented as q(i,j,1), andwherein q(i,j,1)=q(i,j,0)+Q_ldpc*1 (mod 4320)wherein q (i,j,0) is a value of a j-th entry in an i-th row of the parity check matrix, Q_ldpc is 12, 1 is an index of each information bit in the 360 bit group. This Application is a Continuation of co-pending U.S. patent application Ser. No. 14/905,692 filed on Jan. 15, 2016, which is the National Phase of PCT International Application No. PCT/KR2014/007127 filed on Aug. 1, 2014, which claims the benefit under 35 U.S.C. §119(e) to U.S. Provisional Application Nos. 61/883,957 filed on Sep. 27, 2013, 61/882,016 filed on Sep. 25, 2013, 61/881,418 filed on Sep. 23, 2013, 61/876,713 filed on Sep. 11, 2013 and 61/861,387 filed on Aug. 1, 2013, all of which are hereby ...

Internet Protocol Television Via Public Wi-Fi Network

An apparatus, e.g. a wireless media access point, includes a transceiver, a non-transitory storage medium, and a processor operably coupled to the transceiver and the storage medium. The processor is configured by instructions stored on the storage medium to transmit a first multicast channel associated with a first group temporal key (GTK), and to simultaneously transmit a second multicast channel associated with a second GTK.

DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA

The present invention relates to a digital broadcasting system for transmitting/receiving a digital broadcasting signal and a method of processing data. In one aspect of the present invention provides a method of processing data, the method including receiving a broadcasting signal in which mobile service data and main service data are multiplexed, demodulating the received broadcasting signal, obtaining an identifier indicating that data frame of the broadcasting signal includes service guide information, decoding and storing the service guide information from the data frame; and outputting a service included in the mobile service data according to the decoded service guide information. 18-. (canceled)9. A method of processing broadcast data in a receiver , the method comprising:receiving a broadcast signal including service data for a service and signaling information,wherein the broadcast signal is received via a first channel,wherein Electronic Service Guide (ESG) information related to the service is received via at least the first channel or a second channel,wherein, when the ESG information is received via the first channel, the ESG information was included in User Datagram Protocol/Internet Protocol (UDP/IP) packets and the signaling information includes destination address information and destination port information for acquiring the ESG information, andwherein, when the ESG information is received via the second channel, the signaling information includes uniform resource location information for acquiring the ESG information;demodulating the received broadcast signal;decoding the service data and the signaling information in the demodulated broadcast signal; andacquiring the ESG information that is received via at least the first channel or the second channel based on the signaling information.10. The method of claim 9 , wherein the first channel is a broadcast channel and the second channel is a broadband channel.11. The method of claim 9 , wherein ...

FORWARD ERROR CORRECTION USING SOURCE BLOCKS WITH SYMBOLS FROM AT LEAST TWO DATASTREAMS WITH SYNCHRONIZED START SYMBOL IDENTIFIERS AMONG THE DATASTREAMS

A forward error correction (FEC) data generator has an input for at least two datastreams for which FEC data shall be generated in a joint manner, each datastream having a plurality of symbols. A FEC data symbol is based on a FEC source block possibly having a subset of symbols of the at least two data streams. The FEC data generator further has a signaling information generator configured to generate signaling information for the FEC data symbol regarding which symbols within the at least two datastreams belong to the corresponding source block by determining pointers to start symbols within a first and a second datastream, respectively, of the at least two datastreams and a number of symbols within the first datastream and second datastreams, respectively, that belong to the corresponding source block. 1. A forward error correction data generator comprising:an input for at least two datastreams for which forward error correction data shall be generated in a joint manner, each datastream comprising a plurality of symbols, wherein a forward error correction data symbol is based on a forward error correction (FEC) source block;a signaling information generator configured to generate signaling information for the forward error correction data symbol regarding which symbols within the at least two datastreams belong to the corresponding FEC source block by determining a pointer to a start symbol within a first datastream of the at least two datastreams, a pointer to a start symbol within a second datastream of the at least two datastreams, a number of symbols within the first datastream that belong to the corresponding source block, and a number of symbols within the second datastream that belong to the corresponding source block;a synchronizer configured to determine a common identifier for the start symbols within the at least two datastreams;wherein the signaling information generator is configured to include the common identifier into the signaling information to ...

SYSTEM TIME FREQUENCY AND TIME INFORMATION

A method of a reception apparatus for receiving transmission frames. The method includes receiving, by circuitry of the reception apparatus, the transmission frames transmitted on one millisecond boundaries. Each of the transmission frames includes a bootstrap, a preamble, and a payload. The method further includes determining, by the circuitry, an absolute point of time at a predetermined position in a stream of the transmission frames based on first time information included in a first one of the transmission frames. 117-. (canceled)18. A method of a reception apparatus for receiving transmission frames , the method comprising:receiving, by circuitry of the reception apparatus, the transmission frames, each of the transmission frames including a bootstrap, a preamble, and a payload; anddetermining, by the circuitry, a point of time at which a portion of one of the transmission frames was transmitted based on time information included in the preamble of the one of the transmission frames, whereinthe one of the transmission frames is included in a plurality of transmission frames, andthe one of the transmission frames is the only transmission frame of the plurality of transmission frames that includes the time information.19. The method according to claim 18 , wherein the portion is the bootstrap or the preamble.20. The method according to claim 19 , wherein the portion is the preamble.21. The method according to claim 18 , wherein the point of time indicates a time at which a first symbol of the portion of the one of the transmission frames was transmitted.22. The method according to claim 18 , wherein the point of time indicates a time at which a first symbol of the portion in a first one of the transmission frames was transmitted.23. The method according to claim 22 , wherein the first symbol is aligned with a one millisecond boundary on which the first one of the transmission frames is transmitted.24. The method according to claim 18 , wherein the step of ...

Reception apparatus, reception method, transmission apparatus, and transmission method

There is provided a reception apparatus including a first acquisition unit which acquires, preceding text format second signaling data to be transmitted in a lower-level layer than an IP layer in a hierarchy of a protocol of an IP transmission system and containing control information independent of a service identified by an IP address, binary format first signaling data containing a flag indicating whether the second signaling data exists in digital broadcast using the IP transmission system, a second acquisition unit which acquires the second signaling data on the basis of the first signaling data, and a control unit which controls operation of the units which perform various types of processing on the basis of the second signaling data. The present technology can be applied to, for example, a television receiver.

Apparatus and method for displaying content

A system that incorporates teachings of the present disclosure may include, for example, a set-top-box (STB) having a controller to join a multicast group having an associated multicast address, wherein the multicast address is associated with a first content type of a plurality of content types, access encoded content associated with the first content type from the multicast address, wherein the encoded content is transmitted by at least one source associated with the multicast group to the multicast address, decode the accessed encoded content, and display the decoded content on a channel mapped to the multicast address. Other embodiments are disclosed.

APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data. 5. An apparatus of receiving broadcast signals , the apparatus including:a receiver configured to receive the broadcast signals;a demodulator configured to demodulate the received broadcast signals including service data by an Orthogonal Frequency Division Multiplexing (OFDM) scheme; anda Low-Density Parity Check (LDPC) decoder configured to LDPC decode service data based on a matrix,wherein the service data is a codeword having information bits and parity bits, when a length of the codeword is 16200 bits and a code rate of the codeword is 7/15, the matrix is determined based on a following table:{'img': {'@id': 'CUSTOM-CHARACTER-00001', '@he': '7.53mm', '@wi': '135.93mm', '@file': 'US20200021860A1-20200116-P00999.TIF', '@alt': 'text missing or illegible when filed', '@img-content': 'character', '@img-format': 'tif'}}wherein each row of the table corresponds to each group of 360 information bits,wherein each value in the each row represents an address of a parity bit.6. The apparatus of claim 5 ,wherein the LDPC decoder decodes data being updated a parity bit of the codeword which is located in an address of j-th entry in i-th row in the table by accumulating an information bit of the codeword to the parity bit of the codeword, and updated the parity bit.7. A method of receiving broadcast signals claim 5 , the method including:receiving the broadcast signals;demodulating the received broadcast signals including service data by an Orthogonal Frequency Division Multiplexing (OFDM) scheme; andLow-Density Parity Check (LDPC) ...

System and Methods Thereof for Auto-Playing Video Content on Mobile Devices

A system is configured to auto-play video content item on a web-page displayed on a mobile device. The system receives a request to auto-play the video content item on a display of the mobile device. The system fetches the video content item and identifies a type of the video content item. The system selects and initializes a codec to decode the video content item to a set of frames. The system then draws the set of frames on a draw area respective of the video content item. The system generates a display schedule for auto-playing the set of frames as video content item on the display of the mobile device. Then, the system displays the set of frames on the mobile device respective of the display schedule. 1. A computerized method for auto-playing a video content item in a web-page of a mobile device , the method comprising:receiving a request to auto-play the video content item in the web-page displayed on the mobile device;fetching the video content item and respective metadata;identifying a type of the video content item by analyzing the metadata;selecting at least one codec respective of the type of the video content item;initializing the at least one codec to decode the video content item to a set of frames;generating a display schedule for displaying the set of frames on the mobile device;drawing the set of frames on a draw area respective of the at least one video content item; andauto-playing the set of frames respective of the display schedule.2. The computerized method of claim 1 , wherein the mobile device is one of: a smart phone claim 1 , a mobile phone claim 1 , a tablet computer claim 1 , a wearable computing device.3. The computerized method of claim 1 , wherein the draw area comprises of at least one of: a canvas claim 1 , a GIF claim 1 , a BITMAP claim 1 , and a WEBGL.4. The computerized method of claim 1 , wherein the metadata includes the frames per second of the video.5. The computerized method of claim 4 , wherein the display schedule comprises ...

Communication apparatus and communication method

Disclosed is a communication apparatus including an amplification part and a transient characteristics control part. The amplification part is configured to amplify a signal level of a received signal. The transient characteristics control part is configured to control transient characteristics of the amplification part.

TRANSMITTING/RECEIVING SYSTEM AND METHOD FOR PROCESSING A BROADCAST SIGNAL

A method is provided for transmitting an emergency alert message by a broadcast transmitter. The broadcast transmitter first encodes service data and signaling data for a service, second encodes the first encoded service data and the first encoded signaling data, and Forward Error Correction (FEC) encodes transmission parameter data. The transmission parameter data includes encoding information of the service data. The broadcast transmitter modulates the second encoded service data, the second encoded signaling data, and the FEC encoded transmission parameter data, and transmits a broadcast signal including the modulated service data, the modulated signaling data, and the modulated transmission parameter data. The signaling data includes a first signaling table and a second signaling table. 1. A method of transmitting an emergency alert message by a broadcast transmitter , the method comprising:first encoding service data and signaling data for a service;second encoding the first encoded service data and the first encoded signaling data;Forward Error Correction (FEC) encoding transmission parameter data, wherein the transmission parameter data includes encoding information of the service data;modulating the second encoded service data, the second encoded signaling data, and the FEC encoded transmission parameter data; andtransmitting a broadcast signal including the modulated service data, the modulated signaling data, and the modulated transmission parameter data,wherein the signaling data includes a first signaling table and a second signaling table,wherein the first signaling table includes first service identification information to identify the service, type information to indicate whether a type of the service is an emergency alert service, indication information to indicate whether the service is hidden or not, and protection indication information to indicate whether one or more components needed for presentation of the service are protected,wherein the ...

BROADCASTING RECEIVER AND BROADCAST SIGNAL PROCESSING METHOD

A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data. 18.-. (canceled)9. A method of transmitting broadcast signals by a transmitting system , the method comprising:first encoding broadcast data and signaling data to add first parity data, wherein the broadcast data include at least one of video data and audio data and wherein the signaling data include at least one of video codec information for the video data and audio codec information for the audio data;second encoding the first encoded data at a first code rate;interleaving the second encoded data;first encoding transmission parameters to add second parity data;second encoding the first-encoded transmission parameters at a second code rate; andtransmitting the broadcast signals including a transmission frame that contains the interleaved data and the second-encoded transmission parameters,wherein the transmission parameters include information related to a number of the first parity data.10. The method of claim 9 , wherein the transmission frame comprises multiple sub-frames that are concatenated in time and wherein the transmission parameters further include information related to a sub-frame and information related to fast service acquisition.11. An apparatus for transmitting broadcast signals claim 9 , the apparatus comprising:a first encoder to first encode broadcast data and signaling data to add first parity data, wherein the broadcast data include at least one of video data and audio data and wherein the signaling data include at least one of video codec information for the video data and audio codec information for the audio data;a second encoder to second encode the ...

Audio Stagger Casting

A system and method for wirelessly transmitting audiovisual information. A first plurality of packets including audiovisual information may be generated. A second plurality of packets including error correction coding information for the audiovisual information may be generated. Control information for associating the error correction coding information with the audiovisual information may be generated, and a third plurality of packets including the control information may also be generated. The plurality of packets, including the first, second, and third pluralities of packets, may be transmitted to a mobile device in a wireless manner. The control information may inform the mobile device of the association of the first error correction coding information with the audiovisual information. 1. A wireless device , comprising:an antenna; andreceiver logic, receive control information indicating that a first stream and a second stream are associated;', 'receive the first stream, wherein the first stream comprises audio information and forward error correction;', 'receive the second stream, wherein the second stream comprises audio information and forward error correction,', 'wherein the audio information comprised in the first stream and the audio information comprised in the second stream are at least partially overlapping, wherein the first stream and the second stream are received separated in time; and', 'associate the first stream and the second stream based at least in part on the control information., 'wherein the antenna and the receiver logic are configured to2. The wireless device of claim 1 , wherein the wireless device further comprises one or more speakers claim 1 , wherein the wireless device is further configured to:process the audio information comprised in at least one of the first stream and the second stream; andpresent the processed audiovisual information using the one or more speakers.3. The wireless device of claim 2 , wherein the antenna and the ...

METHOD AND SYSTEM FOR PRIORITY-BASED DIGITAL MULTI-STREAM DECODING

Aspects of a method and system for priority-based digital multi-stream decoding. A multi-stream decoder may be enabled to decode and present multiple streams of a multi-stream multimedia application, simultaneously. The multi-stream decoder may be enabled to determine a priority level for each of the received multiple streams of the multimedia application. A high-priority stream may be decoded and presented at a high frame rate and a relative high resolution level, while a lower-priority stream may be decoded and presented at a low frame rate and a relative low resolution level. The decoded frames may be presented in a picture-in-picture format. The priority level for each of the received multiple streams may depend on user input, a user profile, and/or a display capability. 120-. (canceled)21. A method of processing data , the method comprising:assigning, by a decoder, a first priority level to a first received stream of multimedia data and a second priority level, lower than the first priority level, to a second received stream of multimedia data;decoding, by the decoder, a first frame associated with the first received stream at a first priority level, and a second frame associated with the second received stream at a second, lower priority level; andproviding the decoded first frame associated with the first received stream and the decoded second frame associated with the second received stream, by the decoder, based on the corresponding assigned priority levels.22. The method of claim 21 , wherein decoding the first frame further comprises decoding the first frame associated with the first received stream at a decoder bandwidth required to decode the first frame at a full resolution or full frame rate; and wherein decoding the second frame further comprises decoding the second frame associated with the first received stream at a remaining decoder bandwidth.23. The method of claim 21 , further comprising decoding the first frame associated with the first ...

APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

A method is provided for transmitting broadcast signals. Service data is encoded. The encoded service data is mapped to symbols onto constellations. Data cells are frequency interleaved in a symbol among the symbols in at least one frame unit using an interleaving sequence. The interleaving sequence is generated based on a main interleaving-sequence and a symbol offset value. The interleaving sequence is generated by operating the main interleaving-sequence with the symbol offset value. The data cells are included in the symbol with a symbol index and a frame unit with a frame unit index. The frequency interleaving of the data cells operates on a frame basis. The frequency interleaving of the data cells is reset when a first frame unit is changed to a second frame unit. Data is modulated in the at least one frame unit by an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The broadcast signals carrying the modulated data are transmitted. 1. A method for transmitting broadcast signals , the method comprising:encoding service data;mapping the encoded service data to symbols onto constellations;frequency interleaving data cells in a symbol among the symbols in at least one frame unit using an interleaving sequence,wherein the interleaving sequence is generated based on a main interleaving-sequence and a symbol offset value,wherein the interleaving sequence is generated by operating the main interleaving-sequence with the symbol offset value,wherein the data cells are included in the symbol with a symbol index and a frame unit with a frame unit index,wherein the frequency interleaving of the data cells operates on a frame basis, andwherein the frequency interleaving of the data cells is reset when a first frame unit is changed to a second frame unit;modulating data in the at least one frame unit by an Orthogonal Frequency Division Multiplexing (OFDM) scheme; andtransmitting the broadcast signals carrying the modulated data.2. An apparatus for receiving ...

Broadcast receiving apparatus, broadcast receiving method, and contents outputting method

A broadcast receiving apparatus capable of exerting a function with a higher added value is provided. The broadcast receiving apparatus can receive a first digital broadcasting service of a broadcasting system adopting a first media transport method and a second digital broadcasting service of a broadcasting system adopting a second media transport method, and the broadcast receiving apparatus includes: a first broadcast receiving unit that receives a broadcast wave of the first digital broadcasting service; a first separating unit that separates at least first coded program video data related to a first broadcasting program and first event schedule information, from the broadcast wave received by the first broadcast receiving unit; a first video decoding unit that decodes the first coded program video data to reproduce first program video information; a second broadcast receiving unit that receives a broadcast wave of the second digital broadcasting service; a second separating unit that separates at least second coded program video data related to a second broadcasting program and second event schedule information, from the broadcast wave received by the second broadcast receiving unit; a second video decoding unit that decodes the second coded program video data to reproduce second program video information; an electronic program guide creating unit that creates electronic program guide information based on at least the first event schedule information and the second event schedule information; a presentation processing unit capable of receiving the first program video information, the second program video information, and the electronic program guide information, properly performing a selection process, and outputting a result of the selection process as video information; a display unit that displays the video information; an operation input unit to which an operation instruction of a user is input; and a control unit, and when an instruction to display an ...

METHODS AND APPARATUS FOR ENHANCING NETWORK RELIABILITY AND/OR ENABLING PHASED DEPLOYMENT OF VIDEO SERVICES

Methods and apparatus for automatically transitioning program delivery/reception between alternative sources, e.g., from a non-IP channel to an IP video source or between two alternative IP sources are described. The transition maybe triggered by a detected problem with the delivery via the non-IP channel or because of scheduled service. The transition may be in response to a command sent to a device or because the receiving device detects a problem with one of the content sources triggering an automatic switch to the alternative content source. In at least some embodiments the different content sources corresponding to different coding methods, e.g., with MPEG-2 encoded and packetized content being delivered by a non-IP content delivery channel and MPEG-4 being delivered using unicast IP content delivery techniques. The methods facilitate deployment of new services with IP content delivery being deployed initially on a regional basis with non-IP content delivery gradually being rolled out. 1. A method of operating an apparatus , the method comprising:receiving first information indicating a first source of content corresponding to a first program;receiving second information indicating a second source of content corresponding to said first program;selecting a first one of said first source and said second source as a primary source to be used by said set top box to obtain content corresponding to said first program and a second one of said first source and said second source to be used as a secondary source of said content corresponding to a first program; andstoring information in memory indicating which of said first and second sources should be used as the primary source of content corresponding to said first program.2. The method of claim 1 ,wherein said first source is a source which provides first program in a non-IP format; andwherein said second source provides said first program content in an IP format.3. The method of claim 2 ,wherein said first ...

VIDEO DISPLAY APPARATUS AND VIDEO DISPLAY METHOD

According to an embodiment, an information processor includes a first decoder, a controller and a display unit. The first decoder decodes the first video encoded data at a first speed to generate a first video. When the first video encoded data is received earlier than the second video encoded data, the controller controls the first speed so as to generate a period in which the first speed becomes lower than a ×1 speed until second time information of the second decoder catches up with first time information of the first decoder. When the first video encoded data is received earlier than the second video encoded data, the first video is displayed at the first speed until the second time information catches up with the first time information.

VIDEO TRANSCEIVER SYSTEM, VIDEO TRANSMISSION METHOD, AND TRANSMISSION DEVICE

A video transmitting and receiving system includes a transmitting device that transmits a packet, and a receiving device that receives the packet transmitted from the transmitting device. The transmitting device inserts null data into an unused space after a video signal has been encoded and generates a packet having a predetermined packet length. Then, the null data is replaced with known data to modulate and the packet is transmitted. The receiving device receives the transmitted packet to demodulate and waveform distortion of the packet is detected based on the known data pre-registered to correct so as to perform waveform equalization. 1. A video transmitting and receiving system comprising:a transmitting device that transmits a packet; anda receiving device that receives the packet transmitted from the transmitting device, wherein a null data detector that detects null data inserted into the packet of a video encoded signal without reducing video data;', 'a known data replacer that replaces the null data detected by the null data detector with known data;', 'a packet modulation unit that modulates the packet in which the null data is replaced with the known data; and', 'a packet transmitter that transmits the packet modulated by the packet modulation unit, and, 'the transmitting device comprises a demodulation unit that demodulates a packet, transmitted from the packet transmitter and received, and performs an inverse correction based on a waveform distortion;', 'a known data detector that detects the known data included in the packet demodulated by the demodulation unit based on pre-registered known data; and, 'the receiving device comprisesa waveform equalizer that extracts the waveform distortion from a difference between the known data detected by the known data detector and the pre-registered known data, and supplies the waveform distortion to the demodulation unit.25-. (canceled)6. The video transmitting and receiving system according to claim 1 , wherein ...

CUSTOM DATA INDICATING NOMINAL RANGE OF SAMPLES OF MEDIA CONTENT

A media processing tool adds custom data to an elementary media bitstream or media container. The custom data indicates nominal range of samples of media content, but the meaning of the custom data is not defined in the codec format or media container format. For example, the custom data indicates the nominal range is full range or limited range. For playback, a media processing tool parses the custom data and determines an indication of media content type. A rendering engine performs color conversion operations whose logic changes based at least in part on the media content type. In this way, a codec format or media container format can in effect be extended to support full nominal range media content as well as limited nominal range media content, and hence preserve full or correct color fidelity, while maintaining backward compatibility and conformance with the codec format or media container format. 120-. (canceled)21. In a computer system that implements a video processing tool , a method comprising: [{'sup': 'n', 'full range characterized by values from 0 . . . 2−1 for samples of bit depth n; and'}, 'a limited range characterized by values in less than the full range;, 'receiving range data and encoded video content in a first format, wherein the range data indicates nominal range of samples of the encoded video content, the samples of the encoded video content having a sample depth that indicates an available range of values of the samples of the encoded video content, wherein the nominal range is a range of values within the available range for the sample depth of the samples of the encoded video content, and wherein the range data indicates one of multiple possible options for the nominal range, the multiple possible options for the nominal range includingparsing the range data;decoding the encoded video content, thereby producing samples of reconstructed video output in the first format; andconverting the samples of the reconstructed video output from the ...

Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals

The present invention provides a method of transmitting broadcast signals. The method includes, encoding Data Pipe, DP, data according to a code rate, wherein the encoding further includes Low-Density Parity-Check, LDPC, encoding the DP data, Bit interleaving the LDPC encoded DP data, and mapping the bit interleaved DP data onto constellations; building at least one signal frame by mapping the encoded DP data; and modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data.

METHODS AND APPARATUSES FOR OPERATING AND PLAYING A CHANNEL OF A SMART TV SET

Disclosed are methods for operating and playing a channel of a smart TV set, and corresponding apparatuses. The method for operating a channel of a smart TV set includes: detecting an access of an external device to the smart TV set operating with a specified user interface; parsing a live network source file for live network source information upon detecting an access of an external device to the smart TV set, and the live network source file pre-stored in the external device; and adding a live network channel to a list of customized channels on the specified user interface according to the live network source information, so that a user can add a live network channel to the smart TV set on his or her own initiative to thereby better satisfy the user and improve the experience of the user. 1. A method for operating a channel of a smart TV set , the method comprises:detecting whether there is an access of an external device to the smart TV set when the smart TV set operates in a specified user interface;upon detection of the access of the external device to the smart TV, and when the external device pre-stores a live network source file, parsing the live network source file to obtain live network source information; andadding a live network channel to a list of customized channels on the specified user interface according to the live network source information.2. The method according to claim 1 , wherein the live network source information comprises a name and a play address of a live network source claim 1 , then:adding the live network channel to the list of customized channels on the specified user interface according to the live network source information comprises:adding the live network channel to the list of customized channels on the specified user interface according to the network source information, wherein a name of the live network channel is the name of the live network source, and a play address of the live network channel is the play address of the ...

SOFTWARE DEFINED ATSC TV DEMODULATOR WITH WI-FI TUNERS

The present invention provides an implementation method for a Software Defined ATSC TV Demodulator with Wi-Fi Tuners. The method includes the wireless interface between the ATSC TV tuner and the computing platform, the wireless interface (Wi-Fi) transport stream protocol, and the vector-based digital signal processing algorithm for each individual functional block. 1. A software defined ATSC TV Demodulator with Wi-Fi Tuners comprising of:a. One or more ATSC TV Tuners,b. A computing platform (PC, laptop, tablet, smart phone, wearable computing device, Over-The-Top box, etc.),c. The wireless interface (Wi-Fi) device, i. Compress/Decompress or Un-compress the ATSC TV Digital IF Signal', 'ii. Segment the continuous ATSC TV signal into blocks (i.e. one field of ATSC TV signal per block)', 'iii. Pass channel tuning and IF AGC (Automatic Gain Control) information', 'iv. Transform the TV Signal to a Wi-Fi Signal and Wi-Fi signal to a TV signal, 'd. The wireless interface (Wi-Fi) transport stream protocol between the ATSC TV tuner(s) and the computing platform through the wireless interface (Wi-Fi) device, which performs the following functions i. IF to Baseband down-conversion and signal synchronization Functional Block', 'ii. Channel State Estimation and Signal-To-Noise-Ratio (SNR) Estimation Functional Block for each Tuner', 'iii. Signal-to-noise ratio (SNR) Weighted Combining Functional Block for multiple tuners', 'iv. Frequency Domain Maximum Ratio Combining (MRC) Equalizer Functional Block', 'v. Time Domain Maximum Ratio Combining (MRC) Equalizer Functional Block', 'vi. Equal Gain Combining Functional Block', 'vii. Selective Combining Slicing Functional Block', 'viii. Forward Error Correction (FEC) Functional Block: includes Viterbi Decoder, De-interleaver, R. S. Decoder, and De-randomizer', 'ix. Selective Combining Functional Block, 'e. The vector-based digital signal processing algorithm for each individual functional block, which performs the following functions2. A ...

Multi-Tuner Using Interpolative Dividers

An apparatus includes a splitter to receive a radio frequency (RF) signal and to provide the RF signal to multiple channels of a tuner. Each channel may include an amplifier to amplify the RF signal, a mixer to downconvert the amplified RF signal to a second frequency signal using a local oscillator (LO) signal, where each of the channels is configured to receive a different LO signal, a filter to filter the downconverted second frequency signal, and a digitizer to digitize the downconverted second frequency signal. A clock generation circuit has multiple interpolative dividers and a frequency synthesizer to generate a reference clock signal. Each of the interpolative dividers is configured to receive the reference clock signal, generate a corresponding LO signal, and provide the corresponding LO signal to the mixer of at least one of the channels. 1. An apparatus comprising: a first amplifier to amplify the RF signal;', 'a mixer to downconvert the amplified RF signal to a second frequency signal using a local oscillator (LO) signal, each of the plurality of channels configured to receive a different LO signal;', 'a first filter to filter the downconverted second frequency signal;', 'a digitizer to digitize the downconverted second frequency signal; and, 'a plurality of channels for receiving a radio frequency (RF) signal, wherein each of the plurality of channels comprisesa clock generation circuit including a frequency synthesizer to generate a reference clock signal and a plurality of interpolative dividers, each of the plurality of interpolative dividers to receive the reference clock signal and to generate a corresponding LO signal therefrom and to provide the corresponding LO signal to the mixer of at least one of the plurality of channels.2. The apparatus of claim 1 , wherein the apparatus comprises a multi-tuner circuit configured on a single semiconductor die.3. The apparatus of claim 1 , wherein the clock generation circuit comprises a controller coupled ...

Methods And Systems For Accessing Content

Methods and systems for accessing content are provided. A non-tunable device (e.g., a device without the capability to tune to a particular channel) can access a particular channel via a tunable device (e.g., a device with the capability to tune to the particular channel). A computing device can facilitate content tuning. In an aspect, the non-tunable device can transmit a request for content to the computing device. The request for content can comprise a title of the content, a type of content, channel information, and the like. Upon receiving the request for content, the computing device can determine the characteristics of the non-tunable device such as device type, device capabilities, location, and identify all the tunable devices capable of communicating with the non-tunable device. Entitlement information can be provided to the one or more tunable devices. The entitlement information can facilitate access to the requested content by the non-tunable device. 1. A method comprising:receiving a request for content, the request comprising user information;determining one or more tunable devices associated with the user information; andproviding entitlement information to the one or more tunable devices, wherein the entitlement information facilitates access to content by a source of the request for content.2. The method of claim 1 , wherein the request for content further comprises an error indication.3. The method of claim 1 , wherein the request for content comprises a request for pay-per-view content claim 1 , video-on-demand content claim 1 , or both.4. The method of claim 1 , wherein the user information comprises user account information.5. The method of claim 1 , wherein one or more of the tunable devices comprises a QAM tuner.6. The method of claim 1 , wherein the one or more of the tunable devices comprises a gateway device.7. The method of claim 1 , wherein the entitlement information comprises a tuner reservation identifier.8. A method comprising: ...

MULTI-MODAL DIGITAL TERMINAL ADAPTER

A multi-modal digital terminal adapter (DTA), and associated methods and computer-readable media, are disclosed for determining a current mode of operation of the DTA, selectively activating and/or deactivating one or more receiving modules based at least in part on the current mode of operation, and routing an incoming signal to one or more receiving modules based at least in part on one or more characteristics of the signal to initiate processing of the signal in accordance with the current mode of operation for the multi-modal DTA. 1. A method , comprising:determining a current mode of operation of a multi-modal device;activating a first receiving module of the multi-modal device based at least in part on the current mode of operation;receiving, at the multi-modal device, a signal;determining, by the multi-modal device, one or more characteristics of the signal; androuting, by the multi-modal device, the signal to the first receiving module to initiate processing of the signal in accordance with the current mode of operation.2. The method of claim 1 , wherein determining the current mode of operation comprises at least one of: i) receiving a provisioning message indicating the current mode of operation or ii) determining the current mode of operation based at least in part on a configuration of the multi-modal device.3. The method of claim 1 , further comprising deactivating a second receiving module of the multi-modal device based at least in part on the current mode of operation.4. The method of claim 1 , wherein determining one or more characteristics of the signal comprises demodulating the signal to produce a demodulated signal and identifying a type of the signal from header information included in the demodulated signal.5. The method of claim 4 , wherein the signal is a digital cable signal claim 4 , and wherein processing of the signal comprises:decoding, by a decoder of the multi-modal device, the signal to produce a decoded signal; anddecrypting, by a ...

Multimedia Streams Which Use Control Information to Associate Audiovisual Streams

A system and method for wirelessly transmitting audiovisual information. A first plurality of packets including audiovisual information may be generated. A second plurality of packets including error correction coding information for the audiovisual information may be generated. Control information for associating the error correction coding information with the audiovisual information may be generated, and a third plurality of packets including the control information may also be generated. The plurality of packets, including the first, second, and third pluralities of packets, may be transmitted to a mobile device in a wireless manner. The control information may inform the mobile device of the association of the first error correction coding information with the audiovisual information. 1. A wireless device configured to wirelessly receive audiovisual information , the wireless device comprising:a receiver configured to wirelessly receive a first stream, a separate second stream, and control information, wherein each of the first stream and the second stream comprise audiovisual information, wherein each of the first stream and the second stream comprise error correction coding information, wherein the control information indicates that the first stream and the second stream are associated; andreceiver logic coupled to the receiver, wherein the receiver logic is configured to associate the first stream and the second stream based on the control information indicating that the first stream and the second stream are associated.2. The wireless device of claim 1 ,wherein the first stream comprises first audiovisual information and first error correction coding information associated with the first audiovisual information, wherein the second stream comprises second audiovisual information and second error correction coding information associated with the second audiovisual information, wherein the first audiovisual information and the second audiovisual information ...

TRANSMITTING/RECEIVING SYSTEM AND BROADCAST SIGNAL PROCESSING METHOD

The invention relates to a transmitting system, comprising an SNS client that receives SNS messages from at least one SNS server, and a transmitter which transmits a broadcast signal, including the SNS messages and mobile service data, for a mobile broadcast. The transmitter includes: an RS frame encoder, which performs RS encoding and CRC encoding on the mobile service data for the mobile broadcast so as to build RS frames, and divides each RS frame into a plurality of portions; a group-forming unit, which forms data groups that contain each of the plurality of portions, and which adds known data sequences and signaling data to each data group; an inter-leaver for interleaving data of the data groups; and a trellis encoding unit for trellis-encoding the interleaved data. 1. A method of processing broadcast data , the method comprising:encoding service data in at least one data packet, wherein the at least one data packet includes a packet header and a packet payload, wherein the packet header includes stuff indication information for indicating whether stuffing data are included in the at least one data packet, and wherein the packet payload includes the service data for a service;block interleaving the encoded service data;convolutional interleaving the block interleaved service data;encoding transmission parameter data, wherein the transmission parameter data include encoding information of the service data; andtransmitting a broadcast signal including the convolutional interleaved service data and the encoded transmission parameter data,wherein the broadcast signal further includes service information for a service acquisition, andwherein the service information includes service identification information for identifying the service, status indication information for indicating whether the service is hidden, and protection indication information for indicating whether one or more components needed for presentation of the service are protected.2. The method of ...

ANTICIPATORY VIDEO SIGNAL RECEPTION AND PROCESSING

A system and method that provide reduced latency in a video signal processing system. Various aspects of the present invention may comprise receiving a current request from a user for first video information. Such a request may, for example, be received with a user interface module. A first video stream and a second video stream may be received simultaneously, where the first video stream comprises the first video information currently requested by the user, and the second video stream comprises second video information not currently requested by the user. A video receiver module may, for example, perform such receiving. The first video stream may be processed to present the first video information to the user at the current time. Further, the second video stream may be pre-processed in preparation for being presented to the user in the future. A video processing module may, for example, perform such video stream processing. 132.-. (canceled)33. A method , comprising:receiving a request for first video information;predicting a request for second video information;receiving a first video stream and a second video stream, the first video stream corresponding to the request for the first video information and the second video stream corresponding to the request for the second video information;processing the first video stream; and receiving conditional access information for the second video stream after predicting the request for the second video information and before receiving the request for the second video information;', 'subsequent to receiving the conditional access information for the second video stream, buffering at least a portion of the second video stream starting from an access point in the second video stream; and', 'tracking timing components of the second video stream relative to timing components of the first video stream, the timing components of the second video stream comprising timestamp or synchronization components, wherein the tracking of the ...

SERVICE GUIDE ENCAPSULATION

A system for generating, providing and/or receiving an encapsulated service guide data. 1(a) decoding a service guide delivery unit structure that is a transport container for said service guide fragments;(b) decoding a total number of said service guide fragments in said service guide delivery unit structure;(c) decoding fragment encoding fields, within said service guide delivery unit structure, each of which has a value signaling an encoding of a one of said service guide fragments corresponding to an index i,(d) decoding a fragment type field, within said service guide delivery unit structure, which signals a data type of said service guide fragment;(e) decoding an XML fragment field, within said service guide delivery unit structure, which is a string containing an actual XML data of said service guide fragment without a termination character,where a value of said fragment type field does not take a value of 4, 5, 6, 7, 8 or 9 when a value of one of said fragment encoding fields is equal to 0,wherein there is at least one value of said index i in a range of 0 to said total number for which said value of said fragment type field is equal to 0, 1, 2 or 3, and a value of said fragment encoding fields for said index i is equal to 0 in particular service guide delivery unit structure;(f) ignoring data in said XML fragment field with said fragment type field with value equal to 0 or greater than 3, for any value of said index i in said range 0 to said total number, when one of said value of said fragment encoding fields is equal to 0; and(g) decoding said service guide fragment by using said fragment type field and said XML fragment field.. A method for decoding service guide fragments comprising: The present disclosure relates generally to a service guide.A broadcast service is capable of being received by all users having broadcast receivers. Broadcast services can be roughly divided into two categories, namely, a radio broadcast service carrying only audio and a ...

APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals including encoding DP (Data Pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building a signal frame including the time interleaved DP data, modulating data in the built signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, and transmitting the broadcast signals having the modulated data, wherein the broadcast signals are carried in consecutive super frames, wherein each of the super frames includes multiplexed signal frames for different service in a time domain, wherein the signal frame includes a preamble located at the beginning of the at least one signal frame, wherein the preamble includes signaling information for identifying the signal frame. 120-. (canceled)21. A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals , the method comprising:encoding Data Pipe (DP) data carrying at least one service;bit interleaving the encoded DP data;mapping the bit interleaved DP data onto constellations;time interleaving the mapped DP data;building a signal frame including the time interleaved DP data;modulating data in the built signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme, wherein the signal frame includes at least one of a first edge OFDM symbol preceding data OFDM symbols including the encoded DP data and a second edge OFDM symbol following the data OFDM symbols;inserting a preamble at a beginning of the built signal frame, wherein the preamble is generated by multiplying a sequence corresponding to signaling information with a Zadoff-Chu sequence, subcarrier allocating the multiplied sequence and Inverse Fast Fourier Transforming (IFFT) the allocated sequence separately from the data in the built signal frame modulated in advance; andtransmitting the broadcast signals having ...

Digital video broadcasting - terrestrial (dvb-t) system and modulation method thereof

The present invention provides a digital video broadcasting-terrestrial (DVB-T) system and modulation method thereof. The system comprises a transmission module and a receiving module. The transmission module modulates a video signal to a DVB-T signal. The receiving module receives the DVB-T signal via a transmission line and demodulates the DVB-T signal to the video signal, and at the same time, monitoring the signal-to-noise ratio (SNR) or bit error rate (BER), and quantizes them to a reference data. The receiving module transmits the reference data to the transmission module through the same transmission line. The system can determine a control parameter according to the reference data to set the modulation parameter of the DVB-T signal.

APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data. 14-. (canceled)6. The apparatus of claim 5 ,wherein the LDPC decoding decodes data being updated a parity bit of the codeword which is located in an address of j-th entry in i-th row in the table by accumulating an information bit of the codeword to the parity bit of the codeword, and updated the parity bit.8. The method of claim 7 ,wherein the LDPC decoding decodes data being updated a parity bit of the codeword which is located in an address of j-th entry in i-th row in the table by accumulating an information bit of the codeword to the parity bit of the codeword, and updated the parity bit. The present invention relates to an apparatus for transmitting broadcast signals, an apparatus for receiving broadcast signals and methods for transmitting and receiving broadcast signals.As analog broadcast signal transmission comes to an end, various technologies for transmitting/receiving digital broadcast signals are being developed. A digital broadcast signal may include a larger amount of video/audio data than an analog broadcast signal and further include various types of additional data in addition to the video/audio data.That is, a digital broadcast system can provide HD (high definition) images, multi-channel audio and various additional services. However, data transmission efficiency for transmission of large amounts of data, robustness of transmission/reception networks and network flexibility in consideration of mobile reception equipment need to be improved for digital broadcast.An object of the present invention is to ...

DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA

The present invention relates to a digital broadcasting system for transmitting/receiving a digital broadcasting signal and a method of processing data. In one aspect of the present invention provides a method of processing data, the method including receiving a broadcasting signal in which mobile service data and main service data are multiplexed, demodulating the received broadcasting signal, obtaining an identifier indicating that data frame of the broadcasting signal includes service guide information, decoding and storing the service guide information from the data frame; and outputting a service included in the mobile service data according to the decoded service guide information. 18-. (canceled)9. A method of processing broadcast data in a receiver , the method comprising: wherein the broadcast signal is received via a first channel,', 'wherein Electronic Service Guide (ESG) information related to the service is received via one of the first channel or a second channel,', 'wherein, when the ESG information is received via the first channel, the ESG information is delivered in User Datagram Protocol/Internet Protocol (UDP/IP) packets and the signaling information includes destination address information and destination port information for acquiring the ESG information, and', 'wherein, when the ESG information is received via the second channel, the signaling information includes uniform resource location information for acquiring the ESG information;, 'receiving a broadcast signal including service data for a service and signaling information,'}demodulating the broadcast signal;decoding the service data and the signaling information in the demodulated broadcast signal;acquiring the ESG information that is received via one of the first channel or the second channel based on the signaling information;storing the ESG information in a storage;display the ESG information; andproviding a user interface to select at least one content in the ESG information by a ...

Wideband Tuner Architecture

A wideband receiver system comprises a wideband analog-to-digital converter (ADC) module and a digital frontend (DFE) module. The wideband ADC is configured to concurrently digitize a band of frequencies comprising a plurality of desired channels and a plurality of undesired channels. The DFE module is coupled to the digital in-phase and quadrature signals. The DFE module is configured to select the plurality of desired channels from the digitized band of frequencies, and generate an intermediate frequency (IF) signal comprising the selected plurality of desired channels and having a bandwidth that is less than a bandwidth of the band of frequencies, where the generation comprises frequency shifting of the selected plurality of desired channels. The IF signal may be a digital signal and the DFE is configured to output the IF signal via a serial or parallel interface. 118-. (canceled)19. A system comprising:a first analog-to-digital converter (ADC) configured to digitize a first frequency band comprising a first plurality of channels;a second ADC configured to digitize a second frequency band comprising a second plurality of channels;a digital frontend (DFE) circuit operatively coupled to the first ADC and the second ADC, wherein the DFE comprises a plurality of channel filters configured to perform selection of the one or more channels from the first plurality of channels and the one or more channels from the second plurality of channels, and wherein each one of the plurality of channel filters is a finite impulse response filter; and frequency shift the selected one or more channels from the first plurality of channels; and', 'frequency shift the selected one or more channels from the second plurality of channels, wherein the frequency-shifted one or more channels from the first plurality of channels and the frequency-shifted one or more channels from the second plurality of channels are combined into an intermediate frequency (IF) signal., 'an upconverter being ...

VIDEO ENCODING FOR REDUCED STREAMING LATENCY

A client device requests a streaming video from a storage device, which encodes the video's frame in communication packets according to an encoding protocol for transmission to the client. The client device decodes the communication packets to obtain frame segments and a frame marking header indicating a boundary of the video frame relative to other video frames in the video. The communication packets may also include other segment headers indicating a relative ordering of corresponding frame segments. The client device determines, based on the frame marking header, whether a sufficient number of communication packets have been received to render a video frame. In response to determining that the sufficient number of communication packets has been received, the client device assembles the video frame from the frame segments corresponding to the video frame and presents at least a portion of the video by rendering the assembled video frame. 1. A non-transitory computer-readable medium comprising instructions for presenting a video , the instructions executable by a processor and comprising instructions for:receiving communication packets from a device storing the video;decoding the communication packets to obtain frame segments corresponding to one or more video frames of the video and segment headers each indicating a sequence order of the plurality of frame segments;identifying, from the segment headers, a frame marking header indicating a boundary of the video frame relative to other video frames in the video;determining, based on the frame marking header, whether a sufficient number of communication packets have been received to render a video frame; and assembling the video frame from frame segments corresponding to the video frame, and', 'presenting at least a portion of the video by rendering the assembled video frame., 'in response to determining that the sufficient number of communication packets have been received21. The computer-readable medium of , ...

VIRTUAL CHANNEL TABLE FOR A BROADCAST PROTOCOL AND METHOD OF BROADCASTING AND RECEIVING BROADCAST SIGNALS USING THE SAME

A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel. 130-. (canceled)31. A method of processing a digital broadcasting signal in a digital television receiver , comprising:receiving a digital broadcasting signal including program and system information protocol (PSIP) data including a virtual channel table (VCT),wherein the VCT includes a table ID field, a major_channel_number field, a minor_channel_number field, a program number field or service status information,the program number field being set to zero for an inactive channel,the service status information indicating whether a virtual channel is an inactive channel,wherein the inactive channel is a channel that is not presently carrying a broadcast program; however, the same inactive channel is supposed to carry a broadcast program at later time from a broadcasting station; andprocessing the virtual channel based on information in the VCT,wherein when the virtual channel is currently inactive, the receiver is capable of skipping over the virtual channel while a user is surfing.32. The method of claim 31 , wherein the digital broadcasting signal is a digital terrestrial broadcast signal.33. The method of claim 31 , wherein the digital broadcasting signal is a digital cable broadcast signal.34. The method of claim 31 , wherein the service status information is included in a statement of a for_loop in a bit stream syntax of the VCT.35. The method of claim 31 , wherein the digital broadcasting signal further includes a program map table (PMT).37. The digital television receiver of claim 36 , wherein the digital broadcasting ...

Multicast-based content transmitting system and method, and device and method for estimating high-speed movement

The present invention relates to a multicast-based content transmitting system and method, and a device and method for estimating high-speed movement. Included are: a content providing device for generating N×M multicast stream channels having different transmission start times and transmission rates, providing N×M multicast stream channel lists, and transmitting content through one channel of N×M multicast stream channels; and a user terminal for selecting one channel of the N×M multicast stream channel lists provided from the content providing device and receiving content through the selected multicast stream channel.

ANTICIPATORY VIDEO SIGNAL RECEPTION AND PROCESSING

A system and method that provide reduced latency in a video signal processing system. Various aspects of the present invention may comprise receiving a current request from a user for first video information. Such a request may, for example, be received with a user interface module. A first video stream and a second video stream may be received simultaneously, where the first video stream comprises the first video information currently requested by the user, and the second video stream comprises second video information not currently requested by the user. A video receiver module may, for example, perform such receiving. The first video stream may be processed to present the first video information to the user at the current time. Further, the second video stream may be pre-processed in preparation for being presented to the user in the future. A video processing module may, for example, perform such video stream processing. 133-. (canceled)34. A method , comprising:receiving a request for first video information;predicting a request for second video information;receiving a first video stream and a second video stream, the first video stream corresponding to the request for first video information and the second video stream corresponding to the request for the second video information;decoding the first video stream; andwhile decoding the first video stream, pre-processing the second video stream, the pre-processing comprising:buffering the second video stream starting from an access point in the second video stream to cause at least a portion of the second video stream starting from the access point to be available for decoding upon receiving the request for the second video information.35. The method of claim 34 , wherein the pre-processing of the second video stream further comprises:receiving conditional access information for the second video stream after predicting the request for the second video information and before receiving the request for the second ...

Apparatus and method for receiving satellite broadcast

Provided is an apparatus and a method for receiving a satellite broadcast. The method may include estimating a channel using signal-to-noise ratio (SNR) information being received, determining a video signal to be received among at least two video signals based on the estimated channel, and controlling selective reception of the determined video signal.

TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, RECEPTION METHOD, DISPLAY DEVICE, AND DISPLAY METHOD

A transmission device including circuitry is provided. The circuitry is configured to apply photoelectric conversion characteristics to high dynamic range video data to obtain transmission video data. The circuitry is configured to transmit a container including a video stream obtained by encoding the transmission video data. The circuitry is configured to insert type information to designate the type of conversion characteristics corresponding to the applied photoelectric conversion characteristics for photoelectric conversion of the transmission video data into a layer of the video stream and/or a layer of the container. The type of the conversion characteristics designated by the type information is determined regardless of luminance of a display. 1. A transmission device comprising: apply photoelectric conversion characteristics to high dynamic range video data to obtain transmission video data;', 'transmit a container including a video stream obtained by encoding the transmission video data; and', 'insert type information to designate the type of conversion characteristics corresponding to the applied photoelectric conversion characteristics for photoelectric conversion of the transmission video data into a layer of the video stream and/or a layer of the container, wherein, 'circuitry configured to'}the type of the conversion characteristics designated by the type information is determined regardless of luminance of a display.2. The transmission device according to claim 1 , whereinthe circuitry is configured to insert the type information into the layer of the video stream and/or the layer of the container for each predetermined unit, andthe predetermined unit is a scene unit or a program unit.3. A transmission method comprising:a processing step of applying photoelectric conversion characteristics to high dynamic range video data to obtain transmission video data;a transmission step of transmitting a container including a video stream obtained by encoding the ...

TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTING APPARATUS, AND RECEIVING APPARATUS

A transmission method includes: dividing a picture into a plurality of regions; generating a plurality of pieces of encoded data that respectively correspond to the plurality of regions by encoding the plurality of regions such that each of the plurality of regions can be decoded independently; packetizing the generated plurality of pieces of encoded data into a plurality of packets such that pieces of encoded data for different regions are not stored in a single packet; and transmitting the plurality of packets. By this, workload for generation of decoding target data is reduced. 1. A transmission method comprising:dividing a picture into a plurality of regions;generating a plurality of pieces of encoded data that respectively correspond to the plurality of regions by encoding the plurality of regions such that each of the plurality of regions is decoded independently;packetizing the generated plurality of pieces of encoded data into a plurality of packets such that pieces of encoded data for different regions are not stored in a single packet; andtransmitting the plurality of packets,wherein the plurality of regions overlap each other on boundaries of the plurality of regions.2. A reception method for a receiving apparatus including a plurality of decoders , the reception method comprising:receiving a plurality of packets, the plurality of packets being obtained by packetizing a plurality of pieces of encoded data, the plurality of pieces of encoded data being obtained by encoding a plurality of regions of a picture such that the plurality of regions are decoded independently, and the packetizing being performed such that pieces of encoded data for different regions are not stored in a single packet; anddecoding the plurality of packets in parallel by using the plurality of decoders,wherein the plurality of packets are received as data for the picture in a same location where the plurality of pieces of encoded data are stored, and the plurality of regions overlap ...

MULTIMEDIA CONTENT DISTRIBUTION MANAGEMENT

A method includes receiving, at a communications gateway associated with a customer premises, multimedia content from a communications network. The method includes superimposing, via the communications gateway, a heartbeat signal on an alternating current electrical power signal associated with an electrical wiring system of the customer premises. The method includes encoding the multimedia content based on the heartbeat signal to produce encoded multimedia content at the communications gateway. The method also includes wirelessly transmitting the encoded multimedia content from the communications gateway to a device. 1. A method comprising:receiving, at a communications gateway associated with a customer premises, multimedia content from a communications network;superimposing, via the communications gateway, a heartbeat signal on an alternating current electrical power signal associated with an electrical wiring system of the customer premises;encoding the multimedia content based on the heartbeat signal to produce encoded multimedia content at the communications gateway; andwirelessly transmitting the encoded multimedia content from the communications gateway to a device.2. The method of claim 1 , further comprising modifying the heartbeat signal at fixed time intervals.3. The method of claim 1 , further comprising modifying the heartbeat signal at variable time intervals.4. The method of claim 1 , wherein the device is coupled to the electrical wiring system and wherein the device uses the heartbeat signal extracted from the alternating current electrical power signal to decode the encoded multimedia content.5. The method of claim 1 , wherein the device is inhibited from decoding the encoded multimedia content due to absence of the heartbeat signal when the device is not coupled to the electrical wiring system.6. The method of claim 1 , wherein the device comprises a set-top box device.7. The method of claim 1 , wherein the heartbeat signal is based on a first ...

High throughput digital video broadcasting

A system includes an antenna and a receiver. The antenna receives an encoded satellite signal having a plurality of frames. The receiver receives the satellite signal from the antenna and iteratively processes each frame a predetermined number of times. The number of times the frame is processed is based at least on part on a characteristic of the frame. Moreover, the receiver terminates frame processing earlier if a condition, associated with the processing of the frame, exists. An example receiver includes a decoder that decodes the satellite signal and extracts data from at least one frame by iteratively processing each frame the predetermined number of times. The receiver further includes a controller that generates a control signal representing the predetermined number of times the decoder is to iteratively process each frame. The controller generates the control signal based at least in part on a characteristic of the frame.

METHOD FOR PROVIDING AND OBTAINING CONTENT

In a data providing server , whether or not specified compressed content data D generated by means of a specified compression coding method corresponding to terminal identification information has been stored in a content database is detected, according to content specifying data D transmitted from a portable dedicated terminal . If the specified compressed content data D has been stored, the data providing server reads and transmits this to the portable dedicated terminal . And if the specified compressed content data D has not been stored, the data providing server generates the specified compressed content data D by means of the specified compression coding method, and transmits this to the portable dedicated terminal . Thereby, the specified compressed content data D generated by means of a specified decoding method can be properly provided to the portable dedicated terminal , and the user can easily view a content based on the content data. 1. An apparatus for providing content to a user , said apparatus comprising:an enclosure;a processor subsystem entirely encompassed by said enclosure;the processor subsystem comprising a plurality of processing units, including at least a first processing unit and a second processing unit;a screen operatively coupled to said processor subsystem;a user input mechanism operatively coupled to said processor subsystem; a speaker, and', 'a headphone jack;, 'an audio subsystem, operatively coupled to said processor subsystem, comprisingmemory, entirely internal to said enclosure, operatively coupled to the processor subsystem; a Flash semiconductor memory; and', 'an SDRAM semiconductor memory;, 'wherein the memory includes at leasta radio communication system, entirely internal to said enclosure;a camera, coupled to said processor subsystem;a microphone coupled to said processor subsystem;a connector, penetrating a surface of said enclosure, coupled to said processor subsystem;a rechargeable battery internal to said enclosure ...

Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal

A method for transmitting a broadcast signal, includes generating, by a processor, service data of a broadcast service and service signaling information for signaling the service data, the service data including first service components delivered on a Movie Picture Experts Group (MPEG) Media Transport Protocol (MMTP) session or second service components delivered on a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session, generating, by the processor, a service list table including bootstrap information and protocol information for a type of delivery protocol of the service signaling information, wherein the bootstrap information changes based on the protocol information, generating, by the processor, a broadcast signal including the service signaling information, the service list table, the first or second service component, and transmitting, by a broadcasting antenna, the generated broadcast signal.

Detecting Leakage of OFDM Signals from an HFC Network

Detection of OFDM signals leaking from an HFC network with CCAP architecture is presented. Leak detection includes creating signatures of the OFDM signals and using them in an adaptive coherent cross-correlation processing method. The signature is created at a server and then transmitted to a field leakage detector via a wireless network. The server constructs signatures based on modulation and other parameters of the OFDM signal. The detector adaptively selects valid signatures depending on the location of the detector. A cross-correlation receiver samples the OFDM leakage signal in synchronism with a GPS clock and an OFDM master clock at a CMTS. Capture of the OFDM leakage signal in the detector is synchronized with the symbol rate and timestamp of the OFMD signal to achieve time delay measurements of the leak signal at different locations of the detector. Then, the leak is located using known TDOA or network database methods.

Audio/video and data signal redistribution system

A system and method for routing an output signal comprising at least one channel carrying a selected program to the user selecting the selected program. Based on information relating to the user, a server inserts or substitutes, or both, remotely from the user's premises, programming other than the selected program into the channel carrying the selected program. The system transmits the other programming to the user, in addition to or in place of the selected program, for the duration of the other programming.

WIDEBAND TUNER ARCHITECTURE

A wideband receiver system comprises a mixer module, a wideband analog-to-digital converter (ADC) module, and digital circuitry. The mixer module is configured to downconvert a plurality of frequencies that comprises a plurality of desired television channels and a plurality of undesired television channels. The wideband ADC module is configured to digitize the swatch of frequencies comprising the plurality of desired television channels and the plurality of undesired television channels. The digital circuitry is configured to select the desired plurality of television channels from the digitized plurality of frequencies, and output the selected plurality of television channels to a demodulator as a digital datastream. 1. A wideband receiver system comprising:a wideband analog-to-digital converter (ADC) module configured to digitize a plurality of frequencies comprising a plurality of desired television channels and a plurality of undesired television channels, said plurality of frequencies having been received and downconverted; select said plurality of desired television channels from said digitized plurality of frequencies; and', 'output said selected plurality of television channels to a demodulator as a digital datastream., 'digital circuitry configured to2. The wideband receiver system of claim 1 , wherein said output of said digital datastream is via a serial interface.3. The wideband receiver system of claim 1 , wherein said output of said digital datastream is via a parallel interface.4. The wideband receiver system of claim 1 , comprising a mixer module configured to upconvert said digital datastream.5. The wideband receiver system of claim 1 , wherein said wideband analog-to-digital converter comprises:a first ADC configured to generate a digital in-phase signal; anda second ADC configured to generate a digital quadrature signal.6. The wideband receiver system of claim 1 , wherein said digital circuitry comprises a plurality of complex mixers configured ...

System and Method in a Broadband Receiver for Efficiently Receiving and Processing Signals

A system and method in a broadband receiver (e.g., a satellite television receiver) for efficiently receiving and processing signals, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims. 1. A satellite dish system for receiving satellite signals , the satellite dish system comprising: receive a down-converted satellite signal from the LNB; and', 'digitize the down-converted satellite signal over frequencies of the down-converted satellite signal that are used for communicating satellite television signals;, 'a full-band capture receiver circuitry that is communicatively coupled to a low noise block downconverter (LNB) and is operable to receive the digitized down-converted signal from the full-band capture receiver, wherein the digitized down-converted signal comprises a plurality of channels;', 'process, by the FFT engine, the digitized down-converted signal to generate a plurality of FFT outputs;', 'select a portion of the FFT outputs; and', 'output a digital signal comprising the selected portion of the FFT outputs., 'a digital channelizer that comprises a fast Fourier transform (FFT) engine, that is communicatively coupled to the full-band capture receiver, and that is operable to2. The satellite dish system of claim 1 , comprising a demodulator that is communicatively coupled to the digital channelizer and is operable to:receive the output digital signal from the digital channelizer;convert the output digital signal received from the digital channelizer to one or more transport streams; andoutput the one or more transport streams.3. The satellite dish system of claim 1 , comprising bridge circuitry operable to encapsulate the one or more transport streams in one or more Internet Protocol (IP) packets.4. The satellite dish system of claim 3 , wherein the bridge circuitry is operable to first the transport streams based on packet identifiers for encapsulation of only a portion of ...

DIGITAL BROADCASTING SYSTEM AND DATA PROCESSING METHOD

A digital broadcasting system and a method of processing data are disclosed, which are robust to error when mobile service data are transmitted. To this end, additional encoding is performed for the mobile service data, whereby it is possible to strongly cope with fast channel change while giving robustness to the mobile service data. 1encoding the broadcast data by adding parity data;interleaving the encoded broadcast data;encoding first signaling data;allocating the interleaved broadcast data and the encoded signaling data to frames;modulating the frames; andtransmitting a broadcast signal carrying the modulated frames,wherein the first signaling data includes a code rate for encoding the broadcast data and field information for fast service acquisition information,wherein the fast service acquisition information allows a receiver to quickly locate upper layer signaling information,wherein the modulated frames include link layer packets,wherein the link layer packets carry service signaling data for discovering a service provided by the encoded broadcast data,wherein the link layer packets further carry Internet Protocol (IP) packets, andwherein the IP packets carry Asynchronous Layered Coding (ALC)/Layered Coding Transport (LCT) packets that include the broadcast data.. A method of transmitting broadcast data, the method comprising: This application is a continuation of U.S. patent application Ser. No. 14/152,700, filed Jan. 10, 2014, currently pending, which is a continuation of U.S. patent application Ser. No. 12/840,234, filed Jul. 20, 2010, now U.S. Pat. No. 8,660,147, which is a continuation of U.S. patent application Ser. No. 12/164,679, filed Jun. 30, 2008, now U.S. Pat. No. 7,801,181, which claims the benefit of U.S. Provisional Application No. 60/946,980, filed on Jun. 28, 2007, 60/957,714, filed on Aug. 24, 2007, 60/974,084, filed on Sep. 21, 2007, 60/977,379, filed on Oct. 4, 2007, and also claims the benefit of earlier filing date and right of ...

RECEPTION DEVICE, RECEPTION METHOD, AND PROGRAM

There is provided a reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles and demodulates a signal having a predetermined profile, of the received signals, and demodulates a signal having a different profile when it is clear that the signal having the different profile is included. 1. A reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles and demodulates a signal having a predetermined profile , of the received signals , and demodulates a signal having a different profile when it is clear that the signal having the different profile is included.2. A reception device comprising:a receiver which receives signals compliant with a DVB-T2 standard which possibly includes signals having a plurality of different profile types;a demodulator which demodulates the signals received by the receiver; anda signal controller which supplies only a signal having a predetermined profile type, of the signals received by the receiver, to the demodulator, and supplies only a signal having a profile type different from the predetermined profile type to the demodulator when it is clear that the signal having the different profile type is included.3. The reception device according to claim 2 , whereinthe signals include profile information indicating profile types which are configurations of the signals,the reception device further includes a profile information recognizer which recognizes the profile information indicating the profile types which are the configurations of the signals received by the receiver, andbased on the profile information, the signal controller supplies only the signal having the predetermined profile, of profiles recognized by the profile information recognizer, to the demodulator.4. The reception device according to claim 2 , whereinthe profile types include T2-Base and T2-Lite.5. The reception device according ...

ELECTRONIC DEVICE AND METHOD FOR ENABLING DOCSIS 4.0 FDD/FDX OPERATION IN HFC PLANTS

An electronic device and method for delivering content to legacy MPEG quadrature amplitude modulation (QAM) set-top boxes (STBs) identifies a QAM channel from a bank of QAM modulator channels of the electronic device that has spare capacity to transmit a MPEG/QAM program stream for a program N, and a unique MPEG program number corresponding to the program N, joins an IP multicast from a broadband network that includes the program N, and sets up QAM modulation to send the program N on a target frequency corresponding to the identified QAM channel, transmits the target frequency to the STBs, and transmits the MPEG/QAM program stream for the program N to the STBs on the target frequency corresponding to the identified QAM channel. 1. An electronic device for delivering content to legacy MPEG quadrature amplitude modulation (QAM) set-top boxes (STBs) , the electronic device comprising:a memory storing instructions; and identify a QAM channel from a bank of QAM modulator channels of the electronic device that has spare capacity to transmit a MPEG/QAM program stream for a program N, and a unique MPEG program number corresponding to the program N;', 'join an IP multicast from a broadband network that includes the program N, and set up QAM modulation to send the program N on a target frequency corresponding to the identified QAM channel;', 'transmit the target frequency to the STBs; and', 'transmit the MPEG/QAM program stream for the program N to the STBs on the target frequency corresponding to the identified QAM channel., 'a processor configured to execute the instructions to2. The electronic device of claim 1 , wherein the processor is further configured to execute the instructions to:receive a request from one of the STBs to deliver the MPEG/QAM program stream for the program N on a preferred frequency,wherein the target frequency sent by the electronic device corresponds to a same QAM channel as the preferred frequency requested by the one of the STBs in a condition ...

Methods and Systems for Demapping a Multi-carrier Signal

A method for demapping a multicarrier signal into soft bits by a receiver, comprises the steps of: calculating signal to noise ratio (“SNR”) adjustment factors (“A[segidx]”) for segments of the signal, wherein each of the segments has a predefined number of subcarriers of the signal; generating an adjusted SNR (“SNR[segidx]”) as a function of an average SNR over the subcarriers of the signal and of the calculated SNR adjustment factors; and determining the soft bits for the signal as a function of the signal, a channel estimation for the signal, and the adjusted SNR, wherein the receiver decodes the determined soft bits. 1. A method for demapping a multicarrier signal into soft bits by a receiver , comprising the steps of:calculating signal to noise ratio (“SNR”) adjustment factors (“A[segidx]”) for segments of the signal, wherein each of the segments has a predefined number of subcarriers of the signal;generating an adjusted SNR (“SNR[segidx]”) as a function of an average SNR over the subcarriers of the signal and of the calculated SNR adjustment factors; anddetermining the soft bits for the signal as a function of the signal, a channel estimation for the signal, and the adjusted SNR,wherein the receiver decodes the determined soft bits.2. The method of wherein in the calculating step claim 1 , further comprising the steps:determining an error (“err[i]”) for the signal;determining an average error power (“errAvg”) for the segments as a function of the calculated error; andcalculating SNR adjustment factors as a function of the determined average error power.3. The method of wherein the determined average error power is an iterative function with an alpha filter.4. The method of wherein the determined average power is equal to the following: errAvg[segidx]=errAvg[segidx−1]*(1−α)+errPow[segidx]*α claim 3 , segidx=1 claim 3 ,2 claim 3 , . . . claim 3 , L claim 3 , where segidx is an index of the segments claim 3 , a is a predefined constant claim 3 , errPow( ) ...

BROADCAST SIGNAL TRANSMISSION METHOD, BROADCAST SIGNAL TRANSMISSION APPARATUS, BROADCAST SIGNAL RECEPTION METHOD, AND BROADCAST SIGNAL RECEPTION APPARATUS

A broadcast signal reception apparatus according to embodiments of the present invention comprises: a tuner for receiving a broadcast signal, wherein the broadcast signal includes a first content received through a first network and a second content received through a second network, the first content and the second content are allocated to a first channel, and the first content has a resolution different from that of the second content; a signaling parser for parsing signaling information included in the broadcast signal, wherein the signaling information includes linkage information between the first content and the second content; a controller for controlling the first content and the second content on the basis of the signaling information; and a decoder for decoding at least one of the first content or the second content. 114-. (canceled)15. An apparatus for receiving a broadcast signal , the apparatus comprising:a tuner configured to receive a broadcast signal,the broadcast signal including a first content carried based on a first network and a second content carried based on a second network,a channel for the first content is combined with a channel for the second content,the first content corresponds to at least one of a cable service, a terrestrial service or a satellite service,the second content corresponds to an Internet Protocol TV (IPTV) service;a signaling parser configured to parse signaling information included in the broadcast signal,the signaling information including linkage information including type information representing that service discovery information for the IPTV service is present; anda decoder configured to decode at least one of the first content or the second content based on the signaling information.16. The apparatus of claim 15 ,wherein the signaling information includes a transport stream identifier for the first content.17. The apparatus of claim 15 ,wherein the linkage information further includes extended linkage information, ...

Transmitter and transmission method for transmitting payload data and emergency information

A transmitter for transmitting payload data and emergency information using data symbols in a single-carrier or multi-carrier broadcast system includes a modulator configured to modulate one or more transmission symbols with signaling data for use in detecting and recovering the payload data at a receiver and to modulate one or more transmission symbols with the payload data. An emergency information receiver receives emergency information carrying information of an actual emergency. An emergency information embedder embeds emergency information into one or more transmission symbols, wherein the emergency information is embedded within a predetermined time period after its reception by using a resource used for carrying signaling data and/or payload data if no emergency information shall be transmitted. A transmission unit transmits the transmission symbols.

Ratings information

A system for content advisory ratings information.

SERVICE GUIDE ENCAPSULATION

A system for generating, providing and/or receiving an encapsulated service guide data. 1(a) decoding a service guide delivery unit structure that is a transport container for said service guide fragments;(b) decoding a total number of said service guide fragments in said service guide delivery unit structure;(c) decoding fragment encoding fields, within said service guide delivery unit structure, each of which has a value signaling an encoding of a one of said service guide fragments corresponding to an index i,where said fragment encoding fields do not take a value of 1 or 2 or 3,wherein there is at least one value of said index i in a range of 0 to said total number for which at least one of said fragment encoding fields has a value equal to zero corresponding to a particular service guide delivery unit structure specification;(d) ignoring fragment data associated with said fragment encoding fields having a non-zero value; and(e) decoding said service guide fragments by using said fragment encoding fields having said value equal to zero.. A method for decoding service guide fragments comprising: The present disclosure relates generally to a service guide.A broadcast service is capable of being received by all users having broadcast receivers. Broadcast services can be roughly divided into two categories, namely, a radio broadcast service carrying only audio and a multimedia broadcast service carrying audio, video and data. Such broadcast services have developed from analog services to digital services. More recently, various types of broadcasting systems (such as a cable broadcasting system, a satellite broadcasting system, an Internet based broadcasting system, and a hybrid broadcasting system using both a cable network, Internet, and/or a satellite) provide high quality audio and video broadcast services along with a high-speed data service. Also, broadcast services include sending and/or receiving audio, video, and/or data directed to an individual computer ...

Protocol for gating access to media items

Methods and systems provide techniques for managing media streaming and content distribution and management using time-based metadata. A video segment may include a gate with associated content that is accessible conditioned on consumption of the gate. The manner in which the gate manages access to the associated content may be defined according to rules and syntactical elements. For example, a gate may be unlocked or collapsed. An unlocked gate allows a user to skip the gate and access the gated content. A collapsed gate is automatically skipped. A gate may become locked or un-collapsed. Various commands, including fast forward, rewind, jump forward, and jump backward may respond to a gate based on its locked or collapsed status. Embodiments also provide pooling of gates and selection of a subset of gates for playing.

REPRODUCTION DEVICE, ENCODING DEVICE, AND REPRODUCTION METHOD

According to an embodiment, a reproduction device includes an acquirer, a decoder, and a synthesizer. The acquirer is configured to acquire transmission information including first and second coded data. The first and second coded data are generated by encoding first and second image data, respectively. At least one of the first and the second image data is lossy encoded. The first and second image data being generated by performing conversion processes different from each other on original image data. The decoder is configured to decode the first and second coded data to generate first and second decoded data. The synthesizer is configured to synthesize the first and the second decoded data with adjusting pixel positions of the first and the second decoded data so that the pixel positions of the first and the second decoded data are identical to each other to generate reproduction image data. 1. A reproduction device comprising:an acquirer configured to acquire transmission information including first and second coded data generated by encoding first and second image data respectively, at least one of the first and the second image data is lossy encoded, the first and the second image data being generated by performing conversion processes different from each other on original image data;a decoder configured to decode the first and the second coded data to generate first and second decoded data; anda synthesizer configured to synthesize the first and the second decoded data with adjusting pixel positions of the first and the second decoded data so that the pixel positions of the first and the second decoded data are identical to each other to generate reproduction image data.2. The reproduction device according to claim 1 , wherein the synthesizer performs at least one of the conversion process and inverse conversion process of the conversion process on at least one of the first and the second decoded data to convert the first and the second decoded data such that ...

Qos control device in multi-wireless network environment for video transmission and a controlling method thereof

Disclosed is an electronic device performing a video transmission using a multi-wireless network and a controlling method thereof. The electronic device for receiving and reproducing contents includes: a communicator, and a processor to receive, from an external device, a signal including original data of contents through a main frequency band, and receive, from an external device through at least one sub frequency band, a connection state signal including information on original data, and control the communicator to transmit, to the external device through the main frequency band and the at least one sub frequency band, a response signal including information on whether original data is missing, and an amount of received data stored in a buffer.

METHOD FOR SCANNING TELEVISION CHANNELS AND TELEVISION SYSTEM

A method for scanning television channels and a television system are provided. The television system includes a circuit system, a storage unit, and a control circuit. The circuit system is used to receive and demodulate television streaming data, separate information in the television streaming data, and decompress and convert the television streaming data into video and audio. The method is performed in the control circuit. In the method, a channel-selection transceiver circuit receives a channel-selection signal. After channel data stored in the storage unit is analyzed, it is determined whether the channel-selection signal corresponds to any television channel in the channel data. If the channel data does not include the television channel corresponding to the channel-selection signal, a scanning routine is performed in a background for scanning the television channels. A scanning result is then generated and used to update the channel data in the storage unit. 1. A method for scanning television channels , which is adapted to a television apparatus , the method comprising:receiving a channel-selection signal that corresponds to a television channel;analyzing channel data stored in the television apparatus, so as to determine whether or not the channel data includes the television channel; andperforming a scanning routine in a background if the channel data does not include the television channel corresponding to the channel-selection signal to scan the television channel failing to correspond to the channel-selection signal and generate a scanning result; then, updating the channel data stored in the television apparatus.2. The method according to claim 1 , wherein the channel data stored in the television apparatus is produced by steps of:performing the scanning routine in the television apparatus, so as to obtain the channel data including one or more television channel data; andstoring the channel data to a storage device of the television apparatus.3. The ...

METHOD AND SYSTEM FOR HAPTIC DATA ENCODING AND STREAMING USING A MULTIPLEXED DATA STREAM

A method includes receiving digital content data including audio data and/or video data, generating haptic data using at least some of the received digital content data, encoding the haptic data for efficient transmission over a communication network, multiplexing the encoded haptic data with the received digital content data, embedding information for decoding the encoded haptic data in metadata of the multiplexed data stream, and sending the multiplexed data stream over the communication network. The method may include analyzing the haptic data to determine at least one characteristic of the haptic data, and the encoding the haptic data may include encoding, based on the determined characteristic, the haptic data to meet a pre-defined criteria. 120-. (canceled)21. A method comprising:receiving digital content data including at least one of audio data and video data;generating haptic data using at least some of the digital content data;encoding the haptic data to create a plurality of haptic data streams encoded for transmission over a communication network, wherein each of the plurality of haptic data streams has a corresponding density factor and is encoded at a different bit rate according to the corresponding density factor;selecting one of the plurality of haptic data streams as a selected haptic data stream;multiplexing by a multiplexer the selected haptic data stream with the digital content data to create a multiplexed data stream; andsending the multiplexed data stream over the communication network.22. The method of claim 21 , further comprising embedding information for decoding the encoded haptic data in metadata of a file container of the multiplexed data stream23. The method of claim 22 , wherein the file container is an MP4 compatible file container configured to provide a distinction between box structures of the haptic data and box structures of the digital content data.24. The method of claim 21 , further comprising receiving network bandwidth ...