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    OPTICAL DISC, OPTICAL DISC MANUFACTURING METHOD, OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC REPRODUCING DEVICE
    1.
    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。

    INFORMATION RECORDING MEDIUM, RECORDING DEVICE AND REPRODUCING DEVICE
    2.
    发明公开
    INFORMATION RECORDING MEDIUM, RECORDING DEVICE AND REPRODUCING DEVICE 审中-公开
    信息记录媒体和记录装置和再生装置

    公开(公告)号：EP2341500A4

    公开(公告)日：2012-05-02

    申请号：EP09823257

    申请日：2009-10-19

    Applicant: PANASONIC CORP

    Inventor： NAKAMURA ATSUSHI ,  MIYAGAWA NAOYASU ,  FURUMIYA SHIGERU ,  HINO YASUMORI ,  ITO MOTOSHI ,  SHOJI MAMORU ,  TAKAHASHI YOSHIHISA

    IPC: G11B7/007 ,  G11B7/0045 ,  G11B7/125 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/24082

    CPC classification number: G11B7/00736 ,  G11B7/0045 ,  G11B7/1267 ,  G11B7/24038 ,  G11B7/24082

    Abstract: An information recording medium according to the present invention includes three or more information recording layers. Each of the plurality of information recording layers includes a test recording area usable for adjusting a recording condition. One of the plurality of information recording layers includes a reproduction-only management data area in which management data usable for managing the information recording medium is pre-recorded. One information recording layer includes a recordable management data area in which management data usable for managing the information recording medium is newly writable. Each of the other two or more information recording layers among the plurality of information recording layers includes a test recording area at a radial position overlapping the radial position of a part of the reproduction-only management data area. In the one recording layer including the recordable management data area, the recordable management data area is provided at two positions, i.e., one on the inner side and the other on the outer side to the test recording area.

    AUTHENTICATION SYSTEM
    5.
    发明公开
    AUTHENTICATION SYSTEM 审中-公开
    AUTHENTIFIKATIONSSYSTEM

    公开(公告)号：EP1814057A4

    公开(公告)日：2009-07-01

    申请号：EP05790646

    申请日：2005-10-07

    Applicant: PANASONIC CORP

    Inventor： SHOJI MAMORU ,  YAMAOKA MASARU ,  SATO TAKAHIRO ,  TANAKA SHIN-ICHI

    IPC: G06F21/10 ,  G06F21/34 ,  G06K17/00 ,  G06Q20/34 ,  G06Q20/40

    CPC classification number: G06F21/10 ,  G06F21/34 ,  G06Q20/341 ,  G06Q20/40975 ,  G07F7/1008

    Abstract: It is possible to provide a safe and user-friendly authentication system for authenticating an object required in various conditions. The authentication system (900) includes a first authentication information transmission device (901) having first authentication information, a second authentication information transmission unit (904) having second authentication information, and an authentication unit (905) for authenticating a user or user’s right. The second authentication information transmission unit (904) transmits second authentication information only while it receives the first authentication information transmitted from the first authentication information transmission device (901). The authentication unit (905) receives the second authentication information transmitted from the second authentication information transmission unit (904) and authenticates a user or user’s right according to the second authentication information.

    Abstract translation: 可以提供安全且用户友好的认证系统，用于在各种条件下认证所需的对象。 认证系统（900）包括具有第一认证信息的第一认证信息发送设备（901），具有第二认证信息的第二认证信息发送单元（904）以及用于认证用户或用户权限的认证单元（905）。 第二认证信息发送部（904）仅在接收到从第一认证信息发送装置（901）发送的第一认证信息的期间发送第二认证信息。 认证单元（905）接收从第二认证信息发送单元（904）发送的第二认证信息，并且根据第二认证信息来认证用户或用户的权利。

    RECORDING POWER DECISION METHOD AND DEVICE
    8.
    发明公开
    RECORDING POWER DECISION METHOD AND DEVICE 有权
    创记录的业绩裁决和设置

    公开(公告)号：EP1710790A4

    公开(公告)日：2009-05-06

    申请号：EP05709414

    申请日：2005-01-27

    Applicant: PANASONIC CORP

    Inventor： SHOJI MAMORU ,  HINO YASUMORI ,  SATO TAKAHIRO ,  OKADA YUU

    IPC: G11B7/0045 ,  G11B7/006 ,  G11B7/125

    CPC classification number: G11B7/1267 ,  G11B7/00456 ,  G11B7/0062

    Abstract: A recording power determination method for determining a recording power of an optical beam for recording data on an information storage medium includes the steps of recording test data on the information storage medium at a plurality of test recording powers; reading the test data recorded at each test recording power, generating a signal, and measuring a modulation factor of the signal corresponding to each test recording power; calculating a product of an n'th power of each test recording power and the corresponding modulation factor, thereby obtaining a plurality of products corresponding to the plurality of test recording powers, where n is a value of exponent and is a real number other than 1; calculating a first recording power based on the correlation between the plurality of test recording powers and the plurality of products; and calculating the recording power based on the first recording power.

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