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1. 发明专利

JP2003085874A SCRAMBLING METHOD FOR DATA FRAME 审中-公开
公开(公告)号：JP2003085874A
公开(公告)日：2003-03-20
申请号：JP2001273700
申请日：2001-09-10
申请人： TOSHIBA CORP , HITACHI LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： NOZEN CHOSAKU , KASHIWABARA YUTAKA , KOJIMA TADASHI , KATAYAMA YUKARI , TAIRA SHIGEKI , MAEDA TAKESHI , MIYAMOTO JIICHI , KAWAMAE OSAMU , TAKAGI YUJI , KIMURA NAOHIRO
IPC分类号： G11B20/10 , G11B7/30 , G11B20/12 , H04L9/22
摘要： PROBLEM TO BE SOLVED: To increase the number of repetitively recordable times to an information medium which is capable of iteratively performing reading-out/writing. SOLUTION: An initial value (seed) of scrambling is arranged in a position except the top of a data frame (ST100 to ST103). Scrambling data in which patterns are initialized by the initial value (seed) is formed (ST107). The exclusive-ORs with the scrambling data are successively taken for the entire part of the data frame including the initial value (seed), thereby, randomizing of the data within the data frame is performed (ST106).

2. 发明专利

JP2003059193A Method for recording identification data to digital data recording medium and recording and reproducing device 审中-公开
标题翻译：将识别数据记录到数字数据记录介质和记录和再现设备的方法
公开(公告)号：JP2003059193A
公开(公告)日：2003-02-28
申请号：JP2001244480
申请日：2001-08-10
申请人： Hitachi Ltd , Matsushita Electric Ind Co Ltd , Toshiba Corp , Victor Co Of Japan Ltd , 日本ビクター株式会社 , 松下電器産業株式会社 , 株式会社日立製作所 , 株式会社東芝
发明人： YAMAKAWA HIDEYUKI , TAIRA SHIGEKI , KATAYAMA YUKARI , KATO TAKATOSHI , MIYAMOTO JIICHI , KAWAMAE OSAMU , NOZEN CHOSAKU , KASHIWABARA YUTAKA , GUSHIMA TOYOJI , ISHIDA TAKASHI , HAYAMIZU ATSUSHI , KUROIWA TOSHIO , OKI TAKESHI , MIYAZAKI TAKESHI
IPC分类号： G11B20/12 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To decrease the kinds of the identification data so as to decrease the length of the required identification data in an optical disk medium the recording data of which are managed by identification data in the unit of frames. SOLUTION: In this method, 4 kinds of frame management data is defined to identify 26 frames. Recording 4 kinds of the frame management data to the optical medium in a predetermined sequence, the length of the management data can be minimized while identifying the frames.
摘要翻译：要解决的问题：为了减少识别数据的种类，以减少其记录数据以帧为单位由识别数据管理的光盘介质中的所需标识数据的长度。解决方案：在这种方法中，定义了4种帧管理数据来识别26帧。以预定的顺序将4种帧管理数据记录到光学介质中，可以在识别帧的同时最小化管理数据的长度。

3. 发明专利

JP2002367183A Optical disk 有权
标题翻译：光盘
公开(公告)号：JP2002367183A
公开(公告)日：2002-12-20
申请号：JP2001172883
申请日：2001-06-07
申请人： Hitachi Ltd , Matsushita Electric Ind Co Ltd , Toshiba Corp , 松下電器産業株式会社 , 株式会社日立製作所 , 株式会社東芝
发明人： WATABE KAZUO , NOZEN CHOSAKU , OSAWA HIDEAKI , MIYAMOTO JIICHI , KUROKAWA TAKAHIRO , ISHIDA TAKASHI , NAKAMURA ATSUSHI
IPC分类号： G11B7/007 , G11B7/0045
摘要： PROBLEM TO BE SOLVED: To provide a recording format of an optical disk with which a crosstalk between information recording layers of a double layer recording medium is decreased and the decrease in a user data volume is alleviated.
SOLUTION: On the optical disk, a header region is deployed in a disconnected region on a groove track and identification information by prepit is recorded. A header region is formed along the track with an approximately constant interval D (mm), and an arbitrary one turn of the track in the disk has a length of M×D+α (mm) or M×D-α (mm) (M: positive integer, α: positive real number, not zero). Further, the prepit header in the header region on which the identification information is recorded is divided into two parts and disposed between divided prepit headers on adjacent tracks.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供双层记录介质的信息记录层之间的串扰减小并且减轻用户数据量的减少的光盘的记录格式。解决方案：在光盘上，头部区域部署在凹槽轨道上的断开区域，并记录通过预凹坑的识别信息。沿着轨道以大致恒定的间隔D（mm）形成头部区域，并且盘中的轨道的任意一匝具有M×D +α（mm）或M×D-α（mm）的长度，（M：正整数，α：正实数，不为零）。此外，将记录有识别信息的标题区域中的预凹坑标题分成两部分，并且设置在相邻轨道上的分割的预凹坑头之间。

4. 发明专利

JP2002324365A INFORMATION RECORDING FORMAT, INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING/REPRODUCING APPARATUS 失效
公开(公告)号：JP2002324365A
公开(公告)日：2002-11-08
申请号：JP2001129612
申请日：2001-04-26
申请人： HITACHI LTD , TOSHIBA CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： KATAYAMA YUKARI , TAIRA SHIGEKI , MAEDA TAKESHI , MIYAMOTO JIICHI , KAWAMAE OSAMU , KOJIMA TADASHI , NOZEN CHOSAKU , KASHIWABARA YUTAKA , TAKAGI YUJI , KIMURA NAOHIRO
IPC分类号： G11B20/12 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To increase the disk capacity, in which the compatibility with those according to the prior arts is not greatly deteriorated, and in which a more number of sectors can be obtained. SOLUTION: The n bits of a head byte of a sector format are allotted to a region in which a seed for a scramble is stored. The 8-n bits of the head byte are used as the bits for storing a sector ID(identification), in which this portion is matched with the 24 bits data field number existing before and is used for storing a sector indigenous number.

5. 发明专利

JP2002197801A INFORMATION RECORDING MEDIUM AND INFORMATION RECORDING AND REPRODUCING DEVICE USING IT 失效
公开(公告)号：JP2002197801A
公开(公告)日：2002-07-12
申请号：JP2000391284
申请日：2000-12-22
申请人： HITACHI LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAKAWA HIDEYUKI , KATAYAMA YUKARI , KATO TAKATOSHI , MAEDA TAKESHI , MIYAMOTO JIICHI , NAKAMURA ATSUSHI
IPC分类号： G11B20/12 , G11B7/005 , G11B7/007 , G11B20/14
摘要： PROBLEM TO BE SOLVED: To provide a recording and reproducing device adopting a recording coding system including a DC component that facilitates setting of a threshold value for data reproduction (binarization). SOLUTION: A VFO(variable frequency oscillator) pattern where a ratio of periods for mark and space parts differs from each other is recorded on a VFO area used for phase locking of a clock. In the case of reproducing the VFO area, a phase of a PLL(phase lock loon) is locked and an average of reproduction signals for this period is obtained. When the VFO period is finished, the average is stored. The value is used for a threshold value for binarization of the reproduction signals.

6. 发明专利

JP2002157747A OPTICAL DISK 失效
公开(公告)号：JP2002157747A
公开(公告)日：2002-05-31
申请号：JP2000348612
申请日：2000-11-15
申请人： MATSUSHITA ELECTRIC IND CO LTD , HITACHI LTD
发明人： SHOJI MAMORU , NAKAMURA ATSUSHI , ISHIBASHI HIROMICHI , FURUMIYA SHIGERU , MIYAMOTO JIICHI , KUROKAWA TAKAHIRO
IPC分类号： G11B7/24 , G11B7/007 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide an optical disk that can correctly reproduce data without being affected by layers other than a reproduction layer. SOLUTION: An address area is not vertically arranged in a direction of photo spot traveling so as to decrease a rate of a change in a ratio of a mirror area occupied in the photo spot emitting the other layers resulting in reducing local fluctuations of a reproduction signal of data.

7. 发明专利

JP2012022770A Information recording medium showing information by using oscillation of track and information recording replay device 有权
标题翻译：通过使用轨迹和信息记录重置装置的振荡来显示信息记录介质
公开(公告)号：JP2012022770A
公开(公告)日：2012-02-02
申请号：JP2011185466
申请日：2011-08-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MAEDA TAKESHI , MIYAMOTO JIICHI
IPC分类号： G11B7/007 , G11B7/005 , G11B7/24 , G11B7/26 , G11B27/19 , G11B27/24 , G11B27/30
CPC分类号： G11B7/00718 , G11B7/0053 , G11B7/007 , G11B7/00745 , G11B7/24082 , G11B7/261 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2220/20
摘要： PROBLEM TO BE SOLVED: To provide an information recording medium in which address information is recorded so that information can be recorded or replayed on a track targeted at the time of record or replay while enhancing the track density.SOLUTION: An information recording medium has a substrate 4 and a plurality of tracks 269 to 273 formed on the substrate 4. The plurality of tracks 269 to 273 are made from track grooves 270 and 272 made from a plurality of grooves formed on the substrate 4 with a predetermined distance and land tracks 269, 271 and 273 made from regions between the groove tracks. Interfaces 14, 15 between the groove tracks and the land track show information by using oscillation wave form. The period of the oscillation wave form of the interfaces 14, 15 are constant for each interface. The phase of the oscillation wave form of the interfaces 14, 15 is set such that the oscillation wave form at the position where the interfaces face each other, sandwiching the track, is deviated by a preset phase difference.
摘要翻译：要解决的问题：提供一种其中记录地址信息的信息记录介质，使得可以在提高轨道密度的同时在记录或重放时的目标轨道上记录或重放信息。解决方案：信息记录介质具有基板4和形成在基板4上的多个轨道269至273.多个轨道269至273由轨道槽270和272制成，轨道槽270和272由形成在具有预定距离的基板4和由凹槽轨道之间的区域制成的凸台轨道269,271和273。凹槽轨道和槽脊轨道之间的接口14,15通过使用振荡波形显示信息。接口14,15的振荡波形的周期对于每个接口是恒定的。接口14,15的振荡波形的相位被设定为使得在夹着轨道的界面彼此面对的位置处的振荡波形成偏移预设相位差。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2011040155A Multilayer optical disk 有权
标题翻译：多层光盘
公开(公告)号：JP2011040155A
公开(公告)日：2011-02-24
申请号：JP2010210359
申请日：2010-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIKAWA YOSHINORI , MIYAMOTO JIICHI , HIROTSUNE AKEMI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide a multilayer optical disk which has three or more recording layers, wherein focus pull in to a desired recording layer in which a BCA (Burst Cutting Area) is disposed is easily carried out. SOLUTION: An interlayer distance between a first desired recording layer in which the BCA which is to be reproduced first is disposed, and a second recording layer which is nearer to a disk surface on which a laser beam is made incident when carrying out focus pull-in prior to the desired recording layer out of recording layers adjacent to the desired recording layer, is made longer than other interlayer distances. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有三个或更多个记录层的多层光盘，其中聚焦拉入设置有BCA（突发切割区域）的所需记录层。解决方案：在其中设置首先要再生的BCA的第一所需记录层和在其上进行激光束入射的盘表面更接近的第二记录层之间的层间距离在与期望记录层相邻的记录层之间的所需记录层之前的焦点拉入被制成比其它层间距离更长。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010170616A Optical information reproducing method and optical disk device 有权
标题翻译：光学信息再现方法和光盘设备
公开(公告)号：JP2010170616A
公开(公告)日：2010-08-05
申请号：JP2009012351
申请日：2009-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIKAMI HIDEJI , MIYAMOTO JIICHI , KUROKAWA TAKAHIRO
IPC分类号： G11B7/135 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting an interference-type optical information signal capable of easily adjusting an optical path difference between signal light and reference light, providing a high signal amplification effect, and stably maintaining the effect, and suited to the miniaturization of an optical system.
SOLUTION: The optical disk device for interfering light used as reference light without being applied to an optical disk 109 with reflected light from the optical disk, and obtaining an amplifying signal by calculation based on a plurality of interference signal outputs includes, in its signal processing circuit 25, a calculation adjustment mechanism for monitoring one or both of ongoing calculation and a calculation output and adjusting calculation so as to stabilize the output. Thus, variations of device components or an influence of a change of characteristics with time or the like is prevented, and an amplifying effect is stably obtained.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种检测能够容易地调整信号光和参考光之间的光程差的干涉型光信息信号的方法，提供高信号放大效果，并且稳定地保持效果，以及适合于光学系统的小型化。解决方案：用于干涉光的光盘装置用作参考光，而不会用来自光盘的反射光施加到光盘109，并且通过基于多个干扰信号输出的计算获得放大信号包括：其信号处理电路25，用于监视正在进行的计算和计算输出中的一个或两个的计算调整机构，并且调整计算以稳定输出。因此，防止了器件成分的变化或特性随时间的变化等的影响，并且稳定地获得了放大效果。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009054224A Optical pickup and multilayer optical disk 审中-公开
标题翻译：光学拾取和多层光盘
公开(公告)号：JP2009054224A
公开(公告)日：2009-03-12
申请号：JP2007219187
申请日：2007-08-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KUROKAWA TAKAHIRO , SHIOZAWA MANABU , MIYAMOTO JIICHI
IPC分类号： G11B7/135 , G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup for performing highly reliable recording and reproduction without receiving the influence of interlayer crosstalk in a multilayer optical disk having a plurality of information recording layers, and to provide an optical disk medium. SOLUTION: In the optical pickup compatible with tracking control by a DPP (Differential Push-Pull) system, a variation of a sub push-pull signal upon recording and reproduction to/from a multilayer disk medium having two or more information layers is limited to a prescribed range. RF signal variation is limited to a prescribed range in a multilayer disk having three or more information recording layers. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在不具有多个信息记录层的多层光盘中接收到层间串扰的影响的情况下进行高度可靠的记录和再现的光学拾取器，并提供光盘介质。解决方案：在兼容DPP（差分推挽）系统的跟踪控制的光学拾取器中，在向具有两个或多个信息层的多层盘介质进行记录和再现时，副推挽信号的变化限于规定的范围。 RF信号变化被限制在具有三个或更多个信息记录层的多层盘中的规定范围内。版权所有（C）2009，JPO＆INPIT

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