Reproducing device

A reproducing device ( 100 ) includes (i) an optical pickup ( 6 ) for irradiating, with reproduction light, an optical disk ( 1 ) which is a super-resolution medium, (ii) an RF signal processing circuit ( 9 ) for converting, into a reproduction signal, light which reflected off optical disk ( 1 ), (iii) an i-MLSE detecting section ( 141 ) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section ( 142 ) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

OPTICAL INFORMATION RECORDING MEDIUM

An optical information recording medium has a first information recording layer () and a second information recording layer () each of which includes (i) a group of pre-pits () constituting marks () and spaces () and (ii) a super-resolution film (), the marks () and the spaces () having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer () and the second information recording layer (), the group of pre-pits () being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology. 1. (canceled)2. An optical information recording medium reproducing device for reproducing an optical information recording medium ,the optical information recording medium including:a light transmittable layer having an incident surface on which reproduction light is incident;two or more information recording layers;a substrate, the light transmittable layer, the information recording layers, and the substrate being stacked in this order from an incident side on which the reproduction light is incident; andan intermediate layer that separates the information recording layers from each other,the two or more information recording layers having information recorded thereon as marks and spaces by a predetermined modulation method,the two or more information recording layers each including (i) a group of pre-pits constituting the marks and the spaces and (ii) a super-resolution film,the marks and the spaces constituted by the group of pre-pits having different lengths,an average length of a smallest mark that is smallest in length among ...

OPTICAL INFORMATION RECORDING MEDIUM AND REPRODUCTION METHOD

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1. An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andregion location information indicative of starting location and/or ending location of reproduction of information in the first region being recorded in the second region.2. An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a ...

REPRODUCING DEVICE

A reproducing device () includes (i) an optical pickup () for irradiating, with reproduction light, an optical disk () which is a super-resolution medium, (ii) an RF signal processing circuit () for converting, into a reproduction signal, light which reflected off optical disk (), (iii) an i-MLSE detecting section () for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section () for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal. 1. A reproducing device capable of reproducing content from an optical information recording medium in which the content is recorded in a form of a pit group including one or more pits shorter than an optical system resolution limit of the reproducing device , comprising:an irradiation section for irradiating the optical information recording medium with reproduction light;a conversion section for converting, into reproduction signal indicative of the content, light which reflected off the optical information recording medium;a signal quality evaluating section for evaluating quality of the reproduction signal converted by the conversion section; anda spherical aberration correcting section for correcting a spherical aberration caused by the irradiation section, by using a result of evaluation of the quality of the reproduction signal which quality has been evaluated by the signal quality evaluating section; whereinthe signal quality evaluating section is an i-MLSE (Integrated-Maximum Likelihood Sequence Estimation) detecting section for (a) detecting an i-MLSE which is an evaluation index for evaluating a signal characteristic of the reproduction signal and (b) evaluating quality of the reproduction signal,the optical information recording medium has a BCA (Burst Cutting Area) recording region,the reproducing device further comprises a BCA reproduction control section for reproducing information recorded in the BCA recording region,the ...

Reproducing device

A reproducing device ( 100 ) includes (i) an optical pickup ( 6 ) for irradiating, with reproduction light, an optical disk ( 1 ) which is a super-resolution medium, (ii) an RF signal processing circuit ( 9 ) for converting, into a reproduction signal, light which reflected off optical disk ( 1 ), (iii) an i-MLSE detecting section ( 141 ) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section ( 142 ) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

OPTICAL INFORMATION RECORDING MEDIUM HAVING FIRST AND SECOND PIT ROW OF IDENTICAL REFLECTANCE

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P1max) or a longest space (S1max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P2max) or a longest space (S2max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1: An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andthe second region recording therein medium identification information for identifying a medium.2: An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than 119 nm and (ii) a second region in ...

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

A mark corresponding to recording data is formed on an optical disk by: encoding the recording data in accordance with a modulation code and generating encoded data; classifying the encoded data by a combination of at least two of a mark length of a mark, a space length of a preceding space, the mark length of a preceding mark, and the space length of a succeeding space; setting a correction amount for adjusting the position of the start edge and the end edge of a recording pulse based on an evaluation index of a decoding result, which is a result of decoding a reproduction signal of the encoded data, for each of the classification; and generating the recording pulse corresponding to the encoded data by using the correction amount corresponding to the classification of the run length of the encoded data. 117-. (canceled)18. An optical disk recording method for irradiating an optical disk with an optical beam to form a plurality of marks on a medium , and recording information using edge positions of each mark and a space between two adjacent marks , comprising:encoding recording data according to modulation codes to generate binary encoded data corresponding to the mark and the space;regarding run lengths of the mark and the space in the encoded data, if a mark of interest is target mark, classifying the encoded data according to a combination of at least two run lengths of a mark length of the target mark, a space length of a preceding space on a preceding side of the target mark, a mark length of a preceding mark on the preceding side of the target mark, and a space length of a succeeding space on a succeeding side of the target mark;for each classification of the run length of the encoded data, setting individual correction amounts for adjusting positions of a start edge and an end edge of a recording pulse for forming the mark, based on an evaluation index of a decoding result which is obtained when a reproduction signal obtained by reproducing the mark and ...

OPTICAL INFORMATION RECORDING MEDIUM HAVING FIRST AND SECOND PIT ROW OF IDENTICAL REFLECTANCE

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1: An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andpolarity information for identifying a pit polarity being recorded in the second region.2: An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than 119 nm and (ii) a second region in which ...

OPTICAL INFORMATION RECORDING MEDIUM AND REPRODUCTION METHOD

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1. An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andthe second region having reproduction speed information recorded therein.2. An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than 119 nm and (ii) a second region in which information is ...

OPTICAL INFORMATION RECORDING MEDIUM

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance. 1: An optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than that of an optical system resolution limit of a reproduction device and (ii) a second region in which information is recorded by a second pit row that is made up of pits whose length is equal to or longer than that of the optical system resolution limit,in a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit or a longest space in the second pit row is defined as a second reflectance,the first pit row being formed such that the first reflectance becomes substantially identical with the second reflectance, andthe first region having a narrower track pitch than the second region.2: An optical information recording medium which is to be reproduced by a reproduction device that (i) emits reproduction light having a wavelength of 405 nm and (ii) includes an objective lens having a numerical aperture of 0.85 , said optical information recording medium comprising:a recording layer which includes (i) a first region in which information is recorded by a first pit row that includes a pit whose length is shorter than 119 nm and (ii) a second region in which information is recorded ...

Manufacture of heat generating vortex chamber for internal combustion engine

(57)【要約】 【課題】 高密度でデータを記録するために好適な光デ ィスク及びこの光ディスクの為の光ディスク装置を提供 する 【解決手段】 光ディスクＤは、ランド及びグルーブを 記録トラックとしている。各トラックは、１のアドレス セグメントと４５のデータセグメントからなる。アドレ スセグメントは片側にウォブルが施されている。データ セグメントはＤＣグルーブとなっている。アドレスセグ メントには、ＳＹＮＣとフレームアドレスとトラックア ドレスとＣＲＣとからなるアドレス情報と、チルトパタ ーンと、クロックマークとが記録される。クロックマー クは、マークの前後で反射光の光量変化が生じるように なっており、チルトパターンは、他の部分とトラックピ ッチが変えられている。データセグメントには、光磁気 記録でデータが記録される。

Method for detecting image of holographic digital data storage system

An image detection method of a holographic digital data storage system is provided to detect a desired holographic data image according to position difference between identifiers by using at least two identifiers located in one side of a data recording area. An identifier position detecting unit marks at least two identifiers on one side of a data recording area to be identical to a rotary direction of a recording medium. When data are reproduced, the identifier position detecting unit detects positions of the respective identifiers(402,404). When position difference between the detected identifiers is 0(406), a CCD(Charge Coupled Device) detects a holographic data image in which the data are recorded(408).

High density optical disc, and apparatus and method for reproducing a data recorded on them

본 발명은, 고밀도 광디스크와, 그에 따른 광디스크 장치 및 방법에 관한 것으로, BD(Blu-ray Disc)-ROM 등과 같은 고밀도 재생전용 광디스크의 리드인 영역에 기록 저장되는 데이터들을, BD-RW 등과 같은 고밀도 재기록 가능 광디스크에 적용되는 HFM(High Frequency Modulated) 그루브와 연관성을 갖는 형상의 프리-피트(Pre-Pit)열로 기록함으로써, 원하는 정보를 기록하되, 동일한 하나의 고밀도 재생전용 광디스크 또는 고밀도 재기록 가능 광디스크의 전체 영역에 대해, 동일한 하나의 트래킹 서보동작이 연속적으로 수행될 수 있도록 하여, 복수의 트래킹 서보 제어를 위한 복잡한 알고리즘과 그에 따른 장치의 대형화를 효율적으로 방지시킬 수 있게 되는 매우 유용한 발명인 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high density optical disc, and an optical disc apparatus and method according thereto, wherein data recorded and stored in a lead-in area of an optical disc for high-density reproduction such as a BD (Blu-ray Disc) -ROM or the like is stored in a high density such as a BD-RW or the like. By recording in a pre-pit column of a shape that is associated with a high frequency modulated (HFM) groove applied to a rewritable optical disc, the desired information can be recorded, but a single high density reproduction-only optical disc or a high density rewritable optical disc It is a very useful invention that the same single tracking servo operation can be continuously performed for the entire area, thereby effectively preventing the complicated algorithm for the plurality of tracking servo controls and the enlargement of the device accordingly. BD-RW, BD-ROM, 푸시풀 방식, DPD 방식, 프리-피트열, PIC 영역, HFM 그루브 BD-RW, BD-ROM, Push-Pull, DPD, Pre-pit Train, PIC Area, HFM Groove

Method and apparatus for recording and reproducing and recording medium

본 발명은 데이터를 기록하는 방법, 장치 및 기록매체 그리고 재생방법 및 장치에 관한 것이다. 본 발명은 비디오 스트림이 기록된 기록매체에 있어서, 상기 비디오 스트림이 포함된 스트림 영역과 상기 비디오 스트림 재생을 관리하는 재생관리 데이터가 포함된 관리 영역을 포함하고, 상기 관리 영역은 펌웨어의 업데이트 데이터를 제공하는 서버의 식별 정보가 포함된 펌웨어 관리 영역을 포함하는 것을 특징으로 하는 데이터 기록매체를 제공하는 데 특징이 있다. 본 발명에 의하면, 디스크에 기록된 데이터의 재생을 위해 온라인으로 업데이트 데이터를 다운받아 재생 장치의 펌웨어를 업데이트할 수 있다. 따라서 재생 장치의 펌웨어의 버전이 디스크의 재생을 지원하는 펌웨어의 버전과 상이하더라도 업데이트에 의하여 디스크에 기록된 데이터를 재생할 수 있다. BD, 펌웨어, 업데이트, 온라인

Method of storing an identification a record carrier, device and record carrier

本发明涉及一种在包含其中可以存储信息的多个记录道的记录介质上存储盘-标识符的方法。该盘-标识符包括预先确定的固定数量的标识符位。以散射的方式将这些标识符位存储在该记录介质上。例如，可以以一个盘-标识符位为一组成组地并且在为存储非数据位所保留的位置上存储这些盘-标识符位。本发明还进一步涉及用于读出带有散射的盘-标识符的记录介质的装置，以及涉及一种记录介质。

Method of storing a disc-id on a record carrier, device and record carrier

The invention relates to a method of storing a disc-ID on a record carrier comprising tracks in which information can be stored. This disc-ID comprises a predetermined fixed number of disc-ID bits. The disc-ID bits are stored on the record carrier in a scattered way. For example, the disc-ID bits can be stored in groups of one disc-ID bit and at positions reserved for storing non-data bits. The invention further relates to a device for reading the record carrier with the scattered disc-ID, and to a record carrier.

Optical recording medium, optical reproduction apparatus, and optical reproduction method

一种光记录媒体，包括多个与地址信息相联系的识别符，其中，每个识别符都位于光记录媒体上；且每个识别符包括至少：一第一模式，位于光记录媒体上，表示由一个位表示的一第一代码；一第二模式，位于光记录媒体上，表示由一个位表示的一第二代码；和一第三模式，位于光记录媒体上，表示由一个位表示的一第三代码。

Optical disk, and information recording/reproduction apparatus

一种信息记录/再现方法和信息记录/再现装置，用以通过其由光盘录入和/或再现信息，所述光盘包括成形为凹槽类形状的螺旋形第一记录道和成形为槽脊类形状并在相邻的所述第一记录道之间形成的螺旋形第二记录道，所述方法包括：分别在所述第一记录道和第二记录道内预先记录用以识别各个记录道的地址信号，所述第一记录道内的地址信号以PE调制和RLL调制中的一种调制方式调制，所述第二记录道内的地址信号以PE调制和RLL调制中的另一种调制方式调制。

Optical disk, and information recording/reproduction apparatus

一种信息记录/再现方法，用以通过其由光盘录入和/或再现信息，并同时在所述光盘上完成缺陷-替换过程，所述光盘包括由凹槽录入和/或再现信息的第一记录道，以及由夹于所述第一记录道的槽脊录入和/或再现信息的第二记录道；所述第一记录道和第二记录道在同一记录面上形成，在所述第一记录道和第二记录道之一形成一个缺陷目录表区，该缺陷目录表区记录了含有所述第一记录道或第二记录道的有缺陷扇区的缺陷扇区地址和替换扇区地址的缺陷目录，所述缺陷在第一记录道或第二记录道检测和替换；在所述第一记录道和第二记录道内形成被用作替换扇区的备用区；以及在各个备用区内替换所述第一记录道或第二记录道的缺陷扇区，并将所述缺陷目录录入所述缺陷目录表区，由此完成缺陷替换过程。

Patent FR2221888A1

Optical recording medium, optical reproduction apparatus, and optical reproduction method

An optical recording medium comprises a plurality of identifiers (106, 107) in association with address information (108), wherein: each identifier is provided on the optical recording medium; and each identifier comprises at least one of: a first pattern provided on the optical recording medium and representing a first code expressed by one bit; a second pattern provided on the optical recording medium and representing a second code expressed by one bit; and a third pattern provided on the optical recording medium and representing a third code expressed by one bit.

Optical disk recording method, optical disk device, and integrated circuit

A mark corresponding to recording data is formed on an optical disk by: encoding the recording data in accordance with a modulation code and generating encoded data; classifying the encoded data by a combination of at least two of a mark length of a mark, a space length of a preceding space, the mark length of a preceding mark, and the space length of a succeeding space; setting a correction amount for adjusting the position of the start edge and the end edge of a recording pulse based on an evaluation index of a decoding result, which is a result of decoding a reproduction signal of the encoded data, for each of the classification; and generating the recording pulse corresponding to the encoded data by using the correction amount corresponding to the classification of the run length of the encoded data.

Optical disk, and information recording/reproduction apparatus

在有一个记录面并具有螺旋形第一记录道和螺 旋形第二记录道的光盘内，由所述第一记录道和第二 记录道录入和/或再现信息，该第一记录道成型为凹 槽类形状，该第二记录道在相邻的第一记录道之间形 成，并成型为槽脊类形状，且该第一记录道和第二记 录道以不同的调制方式记录信息。

Optical disk having radial lands and grooves, and boundary recognition marks, and optical disk apparatus for emitting a light beam to an optical disk having a plurality of error correction blocks after boundary recognition marks

An optical disk used for writing and reading data in units of an error correction block containing a plurality of sectors by means of a light beam and comprising land and groove tracks arranged adjacent to one another and a plurality of emboss pits formed on a boundary between the land and the groove tracks to detect respective positions of the error correction blocks.

Method of storing an identification a record carrier, device and record carrier

本发明涉及一种在包含其中可以存储信息的多个记录道的记录介质上存储盘—标识符的方法。该盘－标识符包括预先确定的固定数量的标识符位。以散射的方式将这些标识符位存储在该记录介质上。例如,可以以一个盘－标识符位为一组成组地并且在为存储非数据位所保留的位置上存储这些盘－标识符位。本发明还进一步涉及用于读出带有散射的盘一标识符的记录介质的装置,以及涉及一种记录介质。

Method for detecting in holographic digital data storage system

본 발명은 행 방향으로 n픽셀(예로, 8픽셀) 단위 묶음으로 세기의 합을 계산한 최대 위치와, 기준 패턴 벡터와 리트라이브된(retrieved) 패턴 벡터와의 차이의 절대값을 계산한 최소 위치를 기반으로 이미지 데이터의 시작 열과 시작 행인 시작 위치를 추정하기 위한 것으로, 이를 위한 본 발명은 마크 패턴의 행 방향으로 임의의 픽셀 단위 묶음으로 세기의 합을 계산하는 제1단계와, 마크 패턴의 기준 패턴 벡터와 리트라이브된(retrieved) 패턴 벡터와의 차이의 절대값을 계산하는 제2단계와, 제1단계에 의해 계산된 세기의 합에 해당되는 최대 위치와, 제2단계에 의해 계산된 절대값에 해당되는 최소 위치를 기반으로 정보 영역인 이미지 데이터의 시작 열과 시작 행에 대한 위치를 추정하는 단계를 포함한다. 따라서, 재생 이미지의 정보 영역의 위치가 바뀔 때 고속으로 전송되는 이미지 데이터로부터 기존 메모리 버퍼 없이 선형 계산만으로 정보 영역의 위치를 찾을 수 있는 효과를 갖고 있다. According to the present invention, the maximum position at which the sum of the intensity is calculated in a unit of n pixels (for example, 8 pixels) in the row direction, and the minimum position at which the absolute value of the difference between the reference pattern vector and the retrived pattern vector is calculated According to the present invention, a first step of calculating the sum of intensities in an arbitrary pixel unit bundle in the row direction of a mark pattern, and the reference of the mark pattern A second step of calculating an absolute value of the difference between the pattern vector and the retrived pattern vector, a maximum position corresponding to the sum of the intensity calculated by the first step, and an absolute value calculated by the second step Estimating a position of a start column and a start row of image data, which are information regions, based on a minimum position corresponding to the value. Therefore, when the position of the information region of the reproduced image is changed, the position of the information region can be found by linear calculation without an existing memory buffer from image data transmitted at high speed.

Method for storing a disk identifier on a disk data carrier, a device for recording data on and reading data from the disk data carrier, and the disk data carrier

The invention relates to a method of storing a disc-ID on a record carrier comprising tracks in which information can be stored. This disc-ID comprises a predetermined fixed number of disc-ID bits. The disc-ID bits are stored on the record carrier in a scattered way. For example, the disc-ID bits can be stored in groups of one disc-ID bit and at positions reserved for storing non-data bits. The invention further relates to a device for reading the record carrier with the scattered disc-ID, and to a record carrier.

Method and apparatus for recording and/or reproducing a video signal on a photographic record disc

Composite television signals are recorded in a spiral track or in a series of concentric circular tracks on a record disc. Line sequential signals are optically recorded in the radial direction on a record disc with one horizontal line interval of the composite television signals corresponding to the width of the record track, and with the successive line signals being arranged in the circumferential direction of the track. Pulse-time modulated video and audio signals are recorded as a series of depressions all having the same width and the same depth, and with the varying length between the adjacent depressions corresponding to the information signal. A video signal reproducing head is provided adjacent to the optical record disc for optically reproducing video signals from the tracks on the disc which is, during reproduction of the signals, rotated at an extremely low speed so as to facilitate the reliable tracking of the signal reproducing head in respect to the recorded tracks.

Optical information recording medium and reproducing method

一种光信息记录介质以及再生方法。在将根据从第1坑点串的最长坑点(P1max)或最长间隙(S1max)获得的反射光量而算出的反射率设为第1反射率、将根据从第2坑点串的最长坑点(P2max)或最长间隙(S2max)获得的反射光量而算出的反射率设为第2反射率的情况下，第1坑点串被形成为第1反射率与第2反射率大致相同。

Information recording device and method

本发明提供一种信息记录方法和一种信息记录介质(S)，用于能够在例如DVD的信息记录介质(1)上记录重放控制信息(OFT，OSI’)。在划分连续的音频信息(Sr，22)以将它记录在DVD上的情况下，一个操作部分(15)指定一个划分时序。一个拾取器(2)在DVD上记录指定的划分时序之前的音频信息(35)和指定的划分时序之后的音频信息(36)。一个系统控制器(7)重复产生分别与划分时序之前和之后的音频信息(35，36)相关的目标记和顺序信息(OSI’)，以每当指定划分时序时将它们记录在DVD上。

Method for controlling optical reproduction signal equalization and device thereof

PURPOSE: Controlling method and device for equalization of an optical reproducing signal are provided to automatically adjust band filtering characteristic of an equalizer according to change in frequency band of the reproducing signal. CONSTITUTION: An edge detect unit(70) detects edge element of an output signal from a comparator(50). A counter(80) performs counting by being reset by an impulse signal from the edge detect unit. Herein, the detect unit and the counter detect width of a signal outputted from the comparator. Moreover, a window unit(90) outputs a minimum value in the counter to a first register(100). A second register(110) stores a prior signal width value. A comparator(120) compares values stored in the registers for resetting the value in the second register in case of difference of the values. An equalizer control unit(130) establishes an optimum equalizing characteristic by using the value stored in the second register.

Optical recording carrier, and apparatus and process for exploring an optical recording carrier

"PORTADOR DE GRAVAçãO óPTICA, E, APARELHO E PROCESSO PARA EXPLORAR UM PORTADOR DE GRAVAçãO óPTICA". Um portador de gravação óptica (1) é munido de trilhas tendo uma ranhura (4) ondulada numa direção radial e posições predeterminadas (18) ao longo da trilha. Microcavidades gravadas em relevo (19) nas posições predeterminadas, representam informações de endereçamento. A fase da ondulação próxima às posições predeterminadas depende do fato da presença de uma microcavidade (19) sobre uma posição predeterminada ou não (20).

Optical information recording medium

Optical disk, and information recording/reproduction apparatus

本发明描述了一种信息记录/再现方法，用以通过其由光盘录入和/或再现信息，所述光盘包括在同一记录面上形成的第一记录道和第二记录道，其特征在于，当按所述光盘每一圈交替切换所述第一记录道和第二记录道时，按所述第一记录道(或第二记录道)、第二记录道(或第一记录道)、第一记录道(或第二记录道)的依次顺序记录和/或再现信息。

Disk and information recording/reproducing apparatus

一种光信息记录/再现装置，光盘包括：备用区，用以替换记录有缺陷的扇区；缺陷目录区，其中缺陷目录包括一组有缺陷的扇区和用以记录的替换扇区；以及信息记录区，用以记录信息；所述装置包括：光学读写头；记录道标识装置；聚焦装置；跟踪装置；记录道搜索装置；地址再现装置；读/写门发生装置；数据记录/再现装置；记录检验和替换装置；缺陷目录存储装置；以及光信息记录/再现装置的控制装置。

Method of storing an identification on an information carrier, as well as device and information carrier

Optical information recording medium

在将根据从第1坑点串的最长坑点(P1max)或最长间隙(S1max)获得的反射光量而算出的反射率设为第1反射率、将根据从第2坑点串的最长坑点(P2max)或最长间隙(S2max)获得的反射光量而算出的反射率设为第2反射率的情况下，第1坑点串被形成为第1反射率与第2反射率大致相同。

Optical information recording medium having super-resolution film

An optical information recording medium has a first information recording layer ( 20 ) and a second information recording layer ( 40 ) each of which includes (i) a group of pre-pits ( 31, 51 ) constituting marks ( 32, 52 ) and spaces ( 33, 53 ) and (ii) a super-resolution film ( 23, 43 ), the marks ( 32, 52 ) and the spaces ( 33, 53 ) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer ( 20 ) and the second information recording layer ( 40 ), the group of pre-pits ( 31, 51 ) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.

Optical disc and optical disc drive

一种光盘和用于该光盘适于高密度记录数据的光盘驱动器。光盘D使用凸台和凹槽作为记录轨迹。每一个轨迹包括一个地址段和45个数据段。地址段在其一侧被摆动。每一个数据段是一个DC凹槽。地址段记录一个包括同步信号、帧地址、轨迹地址和CRC、倾斜图案和时钟标记的地址信息。时钟标记被采用,将激光束反射为标记之前的一个光量和标记之后的一个光量。倾斜图案具有与其它区域不同的轨迹间距。地址段磁－光地记录数据。

Optical disk recording method, optical disk device and integrated circuit

通过如下操作在光盘介质上形成与记录数据相对应的标记：根据调制码对记录数据进行编码以生成编码数据；对于编码数据中的标记和间隔的游程长度，根据目标标记的标记长度、前间隔的间隔长度、前标记的标记长度、以及后间隔的间隔长度中的至少两个游程长度的组合，对编码数据进行分类；对于每种分类，基于解码结果的评价指标来设置用于调整记录脉冲的开始边缘和结束边缘的位置的校正量，所述解码结果是使用PRML方式的最大似然解码对编码数据的再现信号进行解码的结果；通过使用与编码数据的游程长度的分类相对应的校正量，来生成与编码数据相对应的记录脉冲；以及用所述记录脉冲以多个级改变光束功率，并且用光束照射光盘。

Optical disc and optical disc device

High-density read-only optical disc, and optical disc apparatus and method using the same

高密度只读光盘，以及使用该光盘的设备和方法。该设备和方法在高密度只读光盘，比如BD-ROM(蓝光光盘ROM(只读存储器))的引入区域中以和应用到BD-RW(蓝光光盘可重写)HFM(高频调制)沟槽相关联的预制凹坑串的形式记录数据。另外，该设备和方法连续应用相同的跟踪伺服操作到相同的高密度只读光盘或可重写光盘的整个区域。因此，该设备和方法可以简化用于控制多个跟踪伺服操作的方法，并避免光盘设备的尺寸的增加。

AN OPTICAL RECORDING CARRIER AND AN APPLIANCE AND A METHOD FOR EXPLORING IT

Un portador de grabacion optico (1) está provisto con pistas que tienen una ranura (4) oscilante en direccion radial y posiciones predeterminadas (18) a lolargo de la pista. Los hoyos estampados (19) en posiciones predeterminadas representan informacion de direccionado. La fase de la oscilacion cerca deposiciones predeterminadas depende si un hoyo está presente (19) en una posicion predeterminada o no (20). An optical recording carrier (1) is provided with tracks that have a radially oscillating groove (4) and predetermined positions (18) along the track. Stamped holes (19) in predetermined positions represent addressing information. The phase of the oscillation near predetermined depositions depends on whether a hole is present (19) in a predetermined position or not (20).

Optical information recording medium having super-resolution film

An optical information recording medium has a first information recording layer ( 20 ) and a second information recording layer ( 40 ) each of which includes (i) a group of pre-pits ( 31, 51 ) constituting marks ( 32, 52 ) and spaces ( 33, 53 ) and (ii) a super-resolution film ( 23, 43 ), the marks ( 32, 52 ) and the spaces ( 33, 53 ) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer ( 20 ) and the second information recording layer ( 40 ), the group of pre-pits ( 31, 51 ) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.

Optical recording medium and optical disk apparatus

Optical record medium

FIELD: optical record media. SUBSTANCE: optical record medium has parallel tracks for recording user s information in the form of combination of optically detected labels, tracks being provided with control information. Tracks are grouped in pairs of adjacent tracks. Control information is identical in both tracks of pair and different in tracks of different pairs. EFFECT: reduced impact of cross distortions on adjacent tracks. 9 cl, 5 dwg

Optical disk and information recording/ reproduction apparatus

Optical disk, and information recording/reproduction apparatus

In an optical disk having a recording plane with a spiral first track and a spiral second track, information being recorded into and/or reproduced from said first and second tracks, the first track is formed in a groove-like shape, the second track is formed between adjacent first tracks and in a land-like shape, and information is recorded in the first and second tracks in different modulation methods.

Coding method, decoding method, data carrier and device for reading such

Die Erfindung bezieht sich auf ein Codierungsverfahren zum Wandeln digitaler Quelldaten in eine flächige Anordnung von Markierungen (10), wobei eine Quelldaten-Informationseinheit vorgegebener Größe, die einen zu codierenden Informationsinhalt repräsentiert, nach vorgegebenen Codierungsregeln in eine Speicherdaten-Informationseinheit, die eine vorgegebene Mehrzahl von Markierungs-Positionsbereichen (18) mit zugeordneten Markierungen (12) umfasst, umgesetzt wird. Die Erfindung zeichnet sich dadurch aus, dass jeder Markierungs-Positionsbereich (18) einer Speicherdaten-Informationseinheit mit einer Markierung (12) belegt wird, deren Position innerhalb des zugeordneten Markierungs-Positionsbereichs (18) in Abhängigkeit von dem zu codierenden Informationsinhalt gewählt wird, wobei ein Abstand zwischen zwei Markierungen (12) innerhalb einer Speicherdaten-Informationseinheit repräsentativ für wenigstens einen Teil des zu codierenden Informationsinhaltes ist. The invention relates to a coding method for converting digital source data into a planar arrangement of markers (10), wherein a source data information unit of predetermined size representing an information content to be coded, according to predetermined coding rules, into a memory data information unit containing a predetermined plurality of Marking position ranges (18) with associated markings (12) is reacted. The invention is characterized in that each marker position area (18) of a memory data information unit is assigned a marker (12) whose position within the associated marker position area (18) is selected as a function of the information content to be encoded a distance between two tags (12) within a memory data information unit is representative of at least a part of the information content to be coded.

Light disk and information recording/reproducing apparatus

一种光信息记录/再现装置，光盘包括：备用区，用以替换记录有缺陷的扇区；缺陷目录区，其中缺陷目录包括一组有缺陷的扇区和用以记录的替换扇区；以及信息记录区，用以记录信息；所述装置包括：光学读写头；记录道标识装置；聚焦装置；跟踪装置；记录道搜索装置；地址再现装置；读/写门发生装置；数据记录/再现装置；记录检验和替换装置；缺陷目录存储装置；以及光信息记录/再现装置的控制装置。

Optical disc recording method, optical disc device and integrated circuit

Optical information recording medium, reproducing method, and reproducing apparatus

第１ピット列の最長ピット（Ｐ１max）、または、最長スペース（Ｓ１max）から得られる反射光量から算出される反射率を第１反射率、第２ピット列の最長ピット（Ｐ２max）、または、最長スペース（Ｓ２max）から得られる反射光量から算出される反射率を第２反射率とした場合、第１ピット列は、第１反射率が第２反射率と略同一となるように形成されている。 The reflectance calculated from the reflected light amount obtained from the longest pit (P1max) or the longest space (S1max) in the first pit row is the first reflectance, the longest pit (P2max) or the longest space in the second pit row. When the reflectance calculated from the amount of reflected light obtained from (S2max) is the second reflectance, the first pit row is formed so that the first reflectance is substantially the same as the second reflectance.

Optical information recording medium and regeneration method

一种光信息记录介质以及再生方法。在将根据从第1坑点串的最长坑点(P1max)或最长间隙(S1max)获得的反射光量而算出的反射率设为第1反射率、将根据从第2坑点串的最长坑点(P2max)或最长间隙(S2max)获得的反射光量而算出的反射率设为第2反射率的情况下，第1坑点串被形成为第1反射率与第2反射率大致相同。

Method of storing an identification on a record carrier, device and record carrier

본 발명은, 정보가 저장될 수 있는 복수의 트랙을 구비한 기록매체 상에 디스크-ID를 저장하는 방법에 관한 것이다. 이 디스크-ID는 소정의 일정한 수의 디스크-ID 비트를 포함한다. 이들 디스크-ID 비트는 분산되어 기록매체 상에 저장된다. 예를 들면, 복수의 디스크-ID 비트는 한 개의 디스크-ID 비트로 이루어진 복수의 그룹으로 비데이터 비트를 저장하기 위해 예약된 위치에 저장될 수 있다. 더구나, 본 발명은, 분산된 디스크-ID를 갖는 기록매체를 판독하는 장치와, 기록매체에 관한 것이다. 기록매체, 디스크-ID, 판독장치, 기록장치, 분산

Optical information recording method and apparatus, and recorded medium where optical information recording control program is recorded

Verfahren zum speichern einer identifikation auf einem aufzeichnugsträger sowie vorrichtung zur durchführung des verfahrens und aufzeichnungsträger

프리피트가 형성된 정보 저장 매체 및 기록/재생 장치 및 기록/재생 방법

본 발명에 따라 정보 저장 매체의 최종화를 신속하게 하기 위한 정보 저장 매체 및 기록/재생 장치, 기록/재생 방법이 개시된다. 본 발명에 따른 정보 저장 매체는 상기 매체의 최종화를 위한 영역에 미리 프리피트가 형성되어 있다. 이와 같은 본 발명에 따르면, 정보 저장 매체의 제조시에 이러한 정보 저장 매체의 최종화시에 데이터를 채워야 하는 부분을 미리 프리피트로 형성함으로써, 이후 정보 저장 매체를 사용하고 나서 이 매체를 최종화할 때 소요되는 시간을 절약하여 정보 저장 매체의 최종화를 신속하게 할 수 있다.

한번 기록(ｗｒｉｔｅ ｏｎｃｅ) 디스크에 정보를기록하는 장치, 그 접근 시간 단축 방법 및 그 디스크

한번 기록(write once) 디스크에 정보를 기록하는 장치, 그 접근 시간 단축 방법 및 그 디스크가 개시된다. 본 발명에 따른 리드-인 영역, 데이터 영역 및 리드-아웃 영역이 순서대로 배치된 단일 기록층 한번 기록(write once) 디스크에 있어서, 상기 리드-인 영역, 데이터 영역 및 리드-아웃 영역 중 적어도 하나에 마련되며, 업데이트되는 소정 정보가 기록되는 적어도 하나의 업데이트 영역; 및 상기 리드-인 영역 및 리드-아웃 영역 중 적어도 하나에 마련되어 상기 업데이트 영역에 마지막으로 업데이트된 정보가 기록된 위치를 알려주는 위치 정보가 소정 주기로 기록되는 접근 정보 영역을 포함하는 것을 특징으로 한다. 이에 의해, 소정 정보가 업데이트되어 새로운 위치에 기록되는 한번 기록 디스크의 경우 업데이트된 정보를 읽어들이기 위한 접근 시간을 보다 단축할 수 있다.

情報記録媒体、情報記録方法及び情報記録装置

　情報記録媒体（１）は、周期的に形成された複数のピット（３０１）を有し、複数のピット（３０１）で形成されたピット列にレーザ光を照射してピット（３０１）の形状を変化させることにより情報が記録され、ピット列は周期的に蛇行し、ピット（３０１）の周期（ｆｐ）の長さはレーザ光の回折限界以下であり、ピット列の周期はピットの周期のｎ倍（ｎは正の整数）である。

광정보 기록방법 및 장치 그리고 광정보 기록 제어프로그램을 기록한 기록매체

광정보 기록매체의 정보기록면이 기울어져도 레이저광 사출방향을 일정하게 하여 정보기록을 실행할 수 있는 광정보 기록방법 및 그 장치 그리고 그 프로그램을 기록한 기록매체를 제공한다. ＯＰＣ 실행시에, 기록강도와 어심미터리와의 관계식(기준식), 차분 광강도값과 기록강도와의 관계식(제1 검출식), 차분 광강도값과 반사 광량비와의 차분과 기록강도와의 관계식(제2 검출식), 반사 광량비와 기록강도와의 관계식(제3 검출식), 최적의 어심미터리가 얻어지는 차분 광강도값 및 기록강도 그리고 반사 광량비 등을 구하여 보존하며, 실제의 정보기록시에 이들 관계식들을 사용하여 항상 최적의 어심미터리가 얻어지도록 기록강도를 보정함으로써 레이저광의 사출방향을 보정하지 않고 정보기록면의 경사에 따라 생기는 단위면적당 조사광량의 감소분에 대한 보정을 가능하게 한다.

가시형 워터마크가 기록된 광 기록매체

본 발명은, 메인 데이터가 기록된 일 기록막; 및 상기 메인 데이터의 기록방식과 동일한 기록방식으로 시각적으로 인식가능하도록 소정 패턴의 워터마크가 기록된 다른 기록막을 포함하는 것을 특징으로 한다. 이에 의하여, 저렴한 비용으로 도입가능하면서도 불법복제를 방지할 수 있도록 정품임을 확인시켜줄 수 있고, 불법복제를 방지할 수 있다.

재생전용 광디스크와, 그 재생전용 광디스크 장치에서의재생방법

본 발명은, 동영상 데이터 또는 오디오 데이터와 같은 실시간 데이터가 불연속적으로 기록되는 재기록 가능한 광디스크와의 재생 호환성을 갖는 포맷으로 데이터가 기록된 재생전용 광디스크와, 그 재생전용 광디스크 장치에서의 재생방법에 관한 것이다. 본 발명에 따른 재생전용 광디스크는, 실제 데이터가 기록된 데이터 기록영역을 포함하되, 상기 데이터 기록영역에는, 불요 데이터 기록영역이 반복적으로 할당되어 있다. 그리고 본 발명에 따른 재생전용 광디스크에 대한 재생방법은, 재생전용 광디스크에서 데이터를 재생하고, 재생도중, 소정 구간 단위로 반복 할당된 불요 데이터 기록영역을 만나게 되면, 그 영역을 스킵하거나 또는 그 영역에서 재생되는 불요 데이터를 제거함으로써, 그 불요 데이터 기록영역 이전 및 이후의 데이터를 연결하여 출력한다. 이로써, 재기록 가능한 광디스크와 재생전용 광디스크간에 재생 호환성이 상호 유지된다.

Optischer aufzeichnungsträger

진본판별용 광디스크 및 그 제조방법

본 발명은, 진본판별용 광디스크 및 그 제조방법에 관한 것으로서, 광디스크 제조시, 광디스크의 특정영역에 다단계의 깊이(Pitch)를 갖는 비정상 피트(Pit)를 의도적으로 형성, 제조하여, 재생동작시, 상기 비정상 피트에 의해 검출되는 오류데이터에 따라 광디스크의 진본여부를 판별하도록 하는 진본판별용 광디스크 및 그 제조방법에 관한 것으로, 본 발명에 따른 진본판별용 광디스크는 상기 광디스크의 특정영역에 서로다른 깊이(Pitch)를 갖는 비정상 피트(Pit)를 적어도 1개 이상 특정위치에 형성시켜, 재생동작시, 검출되는 오류데이터에 의해 광디스크의 진본여부를 자동으로 판별하도록 함으로써, 진본판별을 위한 부착물 또는 일련번호 사용을 원천적으로 배제시킴은 물론, 진본판별의 정확성을 크게 향상시킬 수 있는 매우 유용한 발명인 것이다.

Optical disk device

在光记录媒体进行记录的方法、光再现设备和光再现方法

一种用于在光记录媒体进行记录的方法，包括如下步骤：记录与地址信息相关的多个识别符，其中，每个识别符都位于光记录媒体上；且其中记录每个识别符的步骤包括下述步骤中的至少一个：在光记录媒体上提供第一模式，它表示以一个比特表示的第一代码；在光记录媒体上提供第二模式，它表示由一个比特表示的第二代码；和在光记录媒体上提供第三模式，它表示由一个比特表示的第三代码。

信息记录装置和信息记录方法

本发明提供一种信息记录方法和一种信息记录介质(S)，用于能够在例如DVD的信息记录介质(1)上记录重放控制信息(OFT，OSI’)。在划分连续的音频信息(Sr，22)以将它记录在DVD上的情况下，一个操作部分(15)指定一个划分时序。一个拾取器(2)在DVD上记录指定的划分时序之前的音频信息(35)和指定的划分时序之后的音频信息(36)。一个系统控制器(7)重复产生分别与划分时序之前和之后的音频信息(35，36)相关的目标记录顺序信息(OSI’)，以每当指定划分时序时将它们记录在DVD上。

信息记录/再现方法

本发明描述了一种信息记录/再现方法，用以通过其由光盘录入和/或再现信息，所述光盘包括在同一记录面上形成的第一记录道和第二记录道，其特征在于，当按所述光盘每一圈交替切换所述第一记录道和第二记录道时，按所述第一记录道(或第二记录道)、第二记录道(或第一记录道)、第一记录道(或第二记录道)的依次顺序记录和/或再现信息。

Procede d'enregistrement / reproduction d'informations optiques et dispositif afferent

광디스크 장치

HD-DVD에 있어서, 어드레스 정보의 검출 정밀도를 향상시킨다. HD-DVD광디스크(10)에 대하여 데이터의 기록재생 시에, 어드레스 디코드 회로(28)로 어드레스 정보를 복조하여 시스템 콘트롤러(32)에 공급한다. 시스템 콘트롤러(32)는, CRC로 에러 체크를 행하여, CRC가 일치하지 않을 경우에, 워블의 동상의 파의 수가 규정값의 4개가 아닌 비트를 에러 비트로 간주하여 치환처리하고, CRC가 일치하는 조합을 탐색하여 에러 정정한다. HD-DVD광디스크, 시스템 콘트롤러, 워블

Optical disk device

기울어짐 검출 수단을 가지는 광 디스크

개시된 기울어짐 검출수단을 가지는 광 디스크는, 기록 재생 장치의 턴테이블에 디스크를 안착시키기 위한 허브; 정보를 기록하기 위한 다수의 정보용 피트로 구성된 복수의 트랙열을 가지는 기록면을 포함하는 광디스크에 있어서, 상기 기록면에는 광디스크의 재생시 디스크의 기울어짐을 검출하기 위한 적어도 하나이상의 검출영역이 형성되고, 상기 검출영역은 다수의 트랙열 사이 각각에 하나의 검출용 피트가 지그재그로 형성된 적어도 하나이상의 피트군으로 된 것을 특징으로 한다. 이에 따르면, 정보가 기록되는 광디스크의 기록면에 디스크의 기울어짐을 검출하기 위한 검출영역이 마련됨으로써, 종래와 같이 기록 재생 장치 내에 디스크의 기울어짐을 검출하는 별도의 장치가 필요치 않으며, 이에 따라 제품의 단가를 낮출 수 있다.

光盘记录方法、光盘装置和集成电路

通过如下操作在光盘介质上形成与记录数据相对应的标记：根据调制码对记录数据进行编码以生成编码数据；对于编码数据中的标记和间隔的游程长度，根据目标标记的标记长度、前间隔的间隔长度、前标记的标记长度、以及后间隔的间隔长度中的至少两个游程长度的组合，对编码数据进行分类；对于每种分类，基于解码结果的评价指标来设置用于调整记录脉冲的开始边缘和结束边缘的位置的校正量，所述解码结果是使用PRML方式的最大似然解码对编码数据的再现信号进行解码的结果；通过使用与编码数据的游程长度的分类相对应的校正量，来生成与编码数据相对应的记录脉冲；以及用所述记录脉冲以多个级改变光束功率，并且用光束照射光盘。

光盘记录方法、光盘装置和集成电路

通过如下操作在光盘介质上形成与记录数据相对应的标记：根据调制码对记录数据进行编码以生成编码数据；对于编码数据中的标记和间隔的游程长度，根据目标标记的标记长度、前间隔的间隔长度、前标记的标记长度、以及后间隔的间隔长度中的至少两个游程长度的组合，对编码数据进行分类；对于每种分类，基于解码结果的评价指标来设置用于调整记录脉冲的开始边缘和结束边缘的位置的校正量，所述解码结果是使用PRML方式的最大似然解码对编码数据的再现信号进行解码的结果；通过使用与编码数据的游程长度的分类相对应的校正量，来生成与编码数据相对应的记录脉冲；以及用所述记录脉冲以多个级改变光束功率，并且用光束照射光盘。

再生装置

再生装置(100)具备：向作为超分辨率介质的光盘(1)照射再生光的光拾取器(6)；将反射光变换为再生信号的RF信号处理电路(9)；对再生信号的质量进行评价的i‑MLSE检测部(141)；和利用再生信号的质量评价结果来校正球面像差的球面像差校正部(142)。

再生装置

再生装置(100)具备：向作为超分辨率介质的光盘(1)照射再生光的光拾取器(6)；将反射光变换为再生信号的RF信号处理电路(9)；对再生信号的质量进行评价的i‑MLSE检测部(141)；和利用再生信号的质量评价结果来校正球面像差的球面像差校正部(142)。

Reproducing device

A reproducing device ( 100 ) includes (i) an optical pickup ( 6 ) for irradiating, with reproduction light, an optical disk ( 1 ) which is a super-resolution medium, (ii) an RF signal processing circuit ( 9 ) for converting, into a reproduction signal, light which reflected off optical disk ( 1 ), (iii) an i-MLSE detecting section ( 141 ) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section ( 142 ) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

Optical information recording medium having first and second pit rows of identical reflectance

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P 1 max) or a longest space (S 1 max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P 2 max) or a longest space (S 2 max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

Reproducing device

A reproducing device ( 100 ) includes (i) an optical pickup ( 6 ) for irradiating, with reproduction light, an optical disk ( 1 ) which is a super-resolution medium, (ii) an RF signal processing circuit ( 9 ) for converting, into a reproduction signal, light which reflected off optical disk ( 1 ), (iii) an i-MLSE detecting section ( 141 ) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section ( 142 ) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

Optical information recording medium and reproduction method

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P 1 max) or a longest space (S 1 max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P 2 max) or a longest space (S 2 max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

Optical information recording medium having first and second pit row of identical reflectance

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P 1 max) or a longest space (S 1 max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P 2 max) or a longest space (S 2 max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

Reproducing device

A reproducing device ( 100 ) includes (i) an optical pickup ( 6 ) for irradiating, with reproduction light, an optical disk ( 1 ) which is a super-resolution medium, (ii) an RF signal processing circuit ( 9 ) for converting, into a reproduction signal, light which reflected off optical disk ( 1 ), (iii) an i-MLSE detecting section ( 141 ) for evaluating quality of the reproduction signal, and (iv) a spherical aberration correcting section ( 142 ) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.

Method of writing to an optical data storage medium, method of reading from an optical data storage medium, and optical data storage medium

According to embodiments of the present invention, a method of writing to an optical data storage medium is provided. The method includes receiving a plurality of data elements, each data element having one of a plurality of values, wherein each value of the plurality of values is associated with a wavelength, and forming, for each data element, a nanostructure arrangement on the optical data storage medium, the nanostructure arrangement configured to reflect light of the wavelength associated with the value of the data element in response to a light irradiated on the optical data storage medium. According to further embodiments of the present invention, a method of reading from an optical data storage medium and an optical data storage medium are also provided.

Optical information recording medium having first and second pit row of identical reflectance

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P 1 max) or a longest space (S 1 max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P 2 max) or a longest space (S 2 max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.

Optical information recording medium having first and second pit row of identical reflectance

In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (P 1 max) or a longest space (S 1 max) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (P 2 max) or a longest space (S 2 max) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.