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    OPTICAL DISC, OPTICAL DISC MANUFACTURING METHOD, OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC REPRODUCING DEVICE
    26.
    发明公开
    OPTICAL DISC, OPTICAL DISC MANUFACTURING METHOD, OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC REPRODUCING DEVICE 有权
    OPTISCHERDATENTRÄGER，VERFAHREN ZUR HERSTELLUNG VON OPTISCHENDATENTRÄGERN，AUFZEICHNUNGSEINRICHTUNGFÜROPTISCHEDATENTRÄGERUND WIEDERGABEEINRICHTUNGFÜROPTISCHEDATENTRÄGER

    公开(公告)号：EP2023345A4

    公开(公告)日：2009-04-15

    申请号：EP07744279

    申请日：2007-05-28

    Applicant: PANASONIC CORP

    Inventor： YAMAOKA MASARU ,  SHOJI MAMORU ,  NISHIKIORI KEIJI ,  USUI MAKOTO ,  MORIYA MITSURO

    IPC: G11B7/007 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/24 ,  G11B7/24094 ,  G11B20/10 ,  G11B20/12

    CPC classification number: G11B20/00115 ,  G11B7/00736 ,  G11B7/24094 ,  G11B20/00086 ,  G11B20/00173 ,  G11B20/00586 ,  G11B20/1252 ,  G11B2220/2541

    Abstract: Sub-information necessary for reproduction of main information is recorded on an optical disc without deterioration of reading accuracy of the main information, so that illegal reproduction is prevented. After a concave and convex mark (MK) synchronizing with integer times a channel bit length is formed on optical disc (1) in accordance with modulated main information, a reflective film (IL) is formed on the concave and convex mark (MK). After the optical disc (1) is molded, a continuous or intermittent laser light, which has an interval that is longer than the longest mark in the concave and convex mark (MK) and is synchronous with integer times the channel bit length, is irradiated to the reflective film (IL) which, in turn, changes its chemical characteristic to form a recordable mark, so that the sub-information necessary for reproduction of the main information is recorded in a superimposition manner.

    Abstract translation: 主信息再现所需的子信息被记录在光盘上，而不会使主信息的读取精度降低，从而防止非法再现。 在根据调制后的主信息在光盘（1）上形成与整数倍通道位长同步的凹凸标记（MK）之后，在凹凸标记（MK）上形成反射膜（IL）。 在光盘（1）成型之后，照射具有比凹凸标记（MK）中的最长标记更长的间隔并且与通道位长度的整数倍同步的连续或间歇激光 到反射膜（IL），反过来它又改变其化学特性以形成可记录标记，从而以重叠方式记录重放主信息所需的子信息。

    Circuit and device for reproducing data
    28.
    发明专利
    Circuit and device for reproducing data 审中-公开
    用于复制数据的电路和设备

    公开(公告)号：JP2009054278A

    公开(公告)日：2009-03-12

    申请号：JP2008265002

    申请日：2008-10-14

    Applicant: Panasonic Corp ,  パナソニック株式会社

    Inventor： HASHIMOTO YUICHI ,  TAKAGI YUJI ,  USUI MAKOTO ,  KIMURA NAOHIRO ,  YAMAMOTO GIICHI

    IPC: G11B20/18 ,  G06F11/10 ,  G11B20/10 ,  G11B20/12 ,  G11C7/10 ,  H03M13/29

    CPC classification number: G06F11/1008 ,  G11B20/10527 ,  G11B20/18 ,  G11C7/1006 ,  G11C2207/104

    Abstract: PROBLEM TO BE SOLVED: To provide a data reproducing circuit for improving reliability in reproducing recorded data where data error-corrected in different ways are alternately arranged. SOLUTION: Recorded data are separated into a synchronization code, a first recording-order data, and a second recording-order data. The first and second recording-order data are deinterleaved to generate first and second code word sequence data, the second code word sequence data are error-corrected to generate data error position information corresponding to the order of the second code word sequence data, and the data error position information is interleaved to generate data error position information corresponding to the order of the second recording-order data. A erasure pointer is generated from the data error position information corresponding to the order of the first recording-order data, the erasure pointer is deinterleaved to generate an erasure pointer corresponding to the order of the first code word sequence data, and erasure error correction is carried out for the first code word sequence data by using the erasure pointer (S501 to S510). COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种数据再现电路，用于提高以不同方式交替布置数据错误校正的记录数据的可靠性。 解决方案：将记录的数据分成同步码，第一记录顺序数据和第二记录顺序数据。 第一和第二记录顺序数据被去交织以产生第一和第二码字序列数据，第二码字序列数据被纠错以产生对应于第二码字序列数据的顺序的数据错误位置信息，并且 数据错误位置信息被交织以产生对应于第二记录顺序数据的顺序的数据错误位置信息。 从与第一记录顺序数据的顺序对应的数据错误位置信息生成擦除指针，擦除指针被解交织以产生与第一代码字序列数据的顺序对应的擦除指针，擦除错误校正是 通过使用擦除指针来执行第一码字序列数据（S501〜S510）。 版权所有（C）2009，JPO＆INPIT

    Device and method for reproducing optical disk
    30.
    发明专利
    Device and method for reproducing optical disk 审中-公开
    用于复制光盘的设备和方法

    公开(公告)号：JP2011198401A

    公开(公告)日：2011-10-06

    申请号：JP2010062323

    申请日：2010-03-18

    Applicant: Panasonic Corp ,  パナソニック株式会社

    Inventor： TAKAGI YUJI ,  YAMAOKA MASARU ,  NAKASENDO GO ,  USUI MAKOTO

    IPC: G11B7/005 ,  G11B7/007 ,  G11B7/24 ,  G11B20/10

    Abstract: PROBLEM TO BE SOLVED: To record sub-information without increasing the cost required for manufacturing a disk and degrading the reading accuracy of main information, and to reproduce the sub-information by reliable and stable reading.SOLUTION: An optical disk reproducing device includes: a predetermined area-specifying circuit which specifies a position of a predetermined area, where a postscript mark is recorded at least in a part; a pit and/or land length-detecting circuit which detects each length of a plurality of pits and/or lands contained in a predetermined area; and a predetermined length-discriminating circuit which discriminates that each detected pit and/or land length is equal to or more than the predetermined length. The center part of a pit and/or a land which are discriminated to be equal to or more than the predetermined length is taken as a detecting section of second information and the second information is reproduced from a reproduction signal of the second information detection section.

    Abstract translation: 要解决的问题：记录子信息，而不增加制造磁盘所需的成本并降低主信息的读取精度，并通过可靠和稳定的读取来再现子信息。解决方案：一种光盘再现装置，包括： 指定区域指定电路，其规定至少在一部分中记录后标标记的预定区域的位置; 用于检测包含在预定区域中的多个凹坑和/或平台的每个长度的凹坑和/或平台长度检测电路; 以及鉴别每个检测到的凹坑和/或平台长度等于或大于预定长度的预定长度鉴别电路。 被识别为等于或大于预定长度的凹坑和/或焊盘的中心部分被认为是第二信息的检测部分，并且从第二信息检测部分的再现信号再现第二信息。

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