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    1.
    发明专利
    未知

    公开(公告)号：AT441181T

    公开(公告)日：2009-09-15

    申请号：AT03733245

    申请日：2003-06-02

    Applicant: PANASONIC CORP

    Inventor： YAMAOKA MASARU ,  YUMIBA TAKASHI ,  NAGAI TAKAHIRO ,  ISHIHARA HIDESHI

    IPC: G11B7/007 ,  G11B7/004 ,  G11B7/013 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14

    Abstract: An optical disk is provided that disables reproduction of sub-information even if the sub-information as a contents encryption key is recorded entirely onto another optical disk. Sub-information is recorded on the optical disk by deforming a recording mark slightly in accordance with a pseudo random number sequence that is obtained using as an initial value medium ID that is read out medium inherent information. This allows sub-information inherent in a medium to be recorded, and even if the sub-information is duplicated entirely to another optical disk, the illegally duplicated sub-information cannot be reproduced because of a difference in initial value of a pseudo random number sequence between media.

    4.
    发明专利
    未知

    公开(公告)号：DE60329009D1

    公开(公告)日：2009-10-08

    申请号：DE60329009

    申请日：2003-06-02

    Applicant: PANASONIC CORP

    Inventor： YAMAOKA MASARU ,  YUMIBA TAKASHI ,  NAGAI TAKAHIRO ,  ISHIHARA HIDESHI

    IPC: G11B7/007 ,  G11B7/004 ,  G11B7/013 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14

    Abstract: An optical disk is provided that disables reproduction of sub-information even if the sub-information as a contents encryption key is recorded entirely onto another optical disk. Sub-information is recorded on the optical disk by deforming a recording mark slightly in accordance with a pseudo random number sequence that is obtained using as an initial value medium ID that is read out medium inherent information. This allows sub-information inherent in a medium to be recorded, and even if the sub-information is duplicated entirely to another optical disk, the illegally duplicated sub-information cannot be reproduced because of a difference in initial value of a pseudo random number sequence between media.

    5.
    发明专利
    未知

    公开(公告)号：DE60137068D1

    公开(公告)日：2009-01-29

    申请号：DE60137068

    申请日：2001-10-26

    Applicant: PANASONIC CORP

    Inventor： NAGAI TAKAHIRO ,  ISHIHARA HIDESHI ,  YUMIBA TAKASHI ,  TAKAHASHI RIE ,  SHOJI MAMORU ,  YAMAGUCHI HIROYUKI ,  MIYASHITA HARUMITSU

    IPC: G11B7/013 ,  G11B7/007 ,  G11B7/24085 ,  G11B20/00 ,  G11B23/28 ,  G11B23/36 ,  G11B27/30

    Abstract: An optical disc has a plurality of sectors, where each of the plurality of sectors includes a plurality of frames. A sub information bit value of "0" or "1" is assigned to the plurality of frames constituting a sector, excluding the first and last frames. Edge positions are displaced so that leading/lagging errors appear in accordance with a certain rule when data fields of the frames to which the sub information bit value "1" is assigned are read. Edge positions are displaced so that leading/lagging errors appear in accordance with a reversal of the certain rule when data fields of the frames to which the sub information bit value "0" is assigned are read.

    Disk identifier selecting device
    6.
    发明专利
    Disk identifier selecting device 有权
    磁盘识别器选择设备

    公开(公告)号：JP2009289397A

    公开(公告)日：2009-12-10

    申请号：JP2009206594

    申请日：2009-09-08

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

    Inventor： MORIOKA KOICHI ,  YUMIBA TAKASHI ,  KAWASHIMA KEIICHI

    IPC: G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12

    CPC classification number: G11B20/00594 ,  G11B7/007 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/00586

    Abstract: PROBLEM TO BE SOLVED: To provide an optical disk which efficiently prevents casual copies being made by using a reproducing device and a recording device sold on the market, without having to depend on software-related measures. SOLUTION: This invention relates to the optical disk in which digital data are recorded, wherein recess and projection rows having a continuous length of 3T-14T (T is 0.133 μm) based on a run-length suppressing type coding method are formed. Midway, recessed or projected parts having a continuous length which is not based on the run-length suppressing type coding method are recorded. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种光盘，其可以有效地防止通过使用在市场上销售的再现装置和记录装置进行的偶然拷贝，而不必依赖于与软件相关的措施。 解决方案：本发明涉及其中记录数字数据的光盘，其中形成具有基于行程长度抑制型编码方法的连续长度为3T-14T（T为0.133μm）的凹凸行 。 记录中途，具有连续长度的凹槽或投影部分，其不依赖于游程长度抑制型编码方法。 版权所有（C）2010，JPO＆INPIT

    Optical disc, its recording apparatus, recording method and playback apparatus
    9.
    发明专利
    Optical disc, its recording apparatus, recording method and playback apparatus 有权
    光盘，其记录装置，记录方法和播放装置

    公开(公告)号：JP2009151936A

    公开(公告)日：2009-07-09

    申请号：JP2009092186

    申请日：2009-04-06

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

    Inventor： MIYASHITA SEIJUN ,  ISHIBASHI HIROMICHI ,  TANAKA SHINICHI ,  YUMIBA TAKASHI

    IPC: G11B7/007 ,  G11B7/24 ,  G11B7/013 ,  G11B20/00 ,  G11B20/10 ,  G11B20/14

    CPC classification number: G11B20/0021 ,  G11B7/24085 ,  G11B20/00086 ,  G11B20/00166 ,  G11B20/00586 ,  G11B20/1403

    Abstract: PROBLEM TO BE SOLVED: To provide an optical disc recording apparatus and the like capable of preventing an optical disc stored with a digital production from being entirely copied in an unauthorized fashion. SOLUTION: The apparatus includes: a formatter 1 generating a channel signal corresponding to main digital information; a secret key storage 1c storing sub-digital information (secret key); a pseudorandom number generator 2 generating a series of pseudorandom numbers; an XOR 4 logically-reversing the series of pseudorandom numbers on the basis of each bit of the secret key; a PE modulator 5 generating a PE modulation signal on the basis of the logically-reversed series of pseudorandom numbers; a phase modulator 6 advancing a phase of an edge of the channel signal by a predetermined slight time period when the PE modulation signal is "1" and delaying the edge of the channel signal by a predetermined slight time period when the PE modulation signal is "0"; and a recording channel 7 for forming a recording mark on a DVD 9 on the basis of the modulated channel signal generated by the phase modulator 6. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 解决的问题：提供能够防止以数字制作存储的光盘以未经授权的方式完全复制的光盘记录装置等。 解决方案：该装置包括：格式化器1，产生对应于主数字信息的信道信号; 存储子数字信息（秘密密钥）的秘密密钥存储部1c; 产生一系列伪随机数的伪随机数发生器2; XOR 4根据秘密密钥的每个位逻辑反转一系列伪随机数; PE调制器5，其基于逻辑颠倒的一系列伪随机数生成PE调制信号; 相位调制器6，当PE调制信号为“1”时，将通道信号的边沿的相位推进预定的轻微时间段，并且当PE调制信号为“1”时，使通道信号的边沿延迟预定的轻微时间周期 0“; 以及用于根据由相位调制器6产生的调制信道信号在DVD 9上形成记录标记的记录通道7.（C）2009，JPO＆INPIT

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