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    Optical disk, method of playing optical disk, and optical disk drive
    5.
    发明授权
    Optical disk, method of playing optical disk, and optical disk drive 失效
    光盘，播放光盘的方法和光盘驱动器

    公开(公告)号：US07236447B2

    公开(公告)日：2007-06-26

    申请号：US10760585

    申请日：2004-01-21

    申请人： Tamotsu Iida ,  Toshinori Sugiyama ,  Reiji Tamura ,  Hideki Nagano ,  Toshiaki Taii ,  Yuji Yamazaki

    发明人： Tamotsu Iida ,  Toshinori Sugiyama ,  Reiji Tamura ,  Hideki Nagano ,  Toshiaki Taii ,  Yuji Yamazaki

    IPC分类号： G11B7/00

    CPC分类号： G11B27/329 ,  G11B7/0053 ,  G11B7/00736 ,  G11B20/00086 ,  G11B23/281 ,  G11B27/24 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/2562

    摘要： An optical disk includes a recording region formed on a substrate for recording user data, and a management region formed on the substrate which includes an identification information region for recording disk-specific identification information such as address information (ID), a SYNC code, or an error detection code (EDC). The identification information region in this optical disk has a flat portion (a mirror region) formed by means of sectioning part of a groove or a land in a given step. The disk-specific identification information is recorded on the identification information region inclusive of this mirror region as irreversible record marks. Moreover, a signal of the disk-specific identification information is detected by a laser beam which is servoed on the recording track of this optical disk. Then, a change in the detected signal level of the disk-specific identification information is detected based on a predetermined threshold level.

    摘要翻译： 光盘包括形成在用于记录用户数据的基板上的记录区域和形成在基板上的管理区域，其包括用于记录盘特定识别信息的识别信息区域，例如地址信息（ID），SYNC码或 错误检测码（EDC）。 该光盘中的识别信息区域具有通过在给定步骤中对槽或焊盘的一部分进行切片而形成的平坦部分（反射镜区域）。 将盘特定识别信息作为不可逆记录标记记录在包括该镜像区域的识别信息区域上。 此外，通过在该光盘的记录轨道上被伺服的激光束来检测盘专用识别信息的信号。 然后，基于预定的阈值水平来检测检测到的盘专用识别信息的信号电平的变化。

    Optical recording medium
    7.
    发明授权
    Optical recording medium 失效
    光记录介质

    公开(公告)号：US5688574A

    公开(公告)日：1997-11-18

    申请号：US616011

    申请日：1996-03-14

    申请人： Reiji Tamura ,  Yoshihiro Ikari ,  Toshiaki Taii ,  Norio Ota

    发明人： Reiji Tamura ,  Yoshihiro Ikari ,  Toshiaki Taii ,  Norio Ota

    IPC分类号： G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B11/105 ,  B32B3/00

    CPC分类号： G11B7/258 ,  G11B7/24 ,  G11B7/243 ,  G11B11/1051 ,  G11B11/10586 ,  G11B2007/24306 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B7/2542 ,  G11B7/2595 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21 ,  Y10T428/31678

    摘要： Disclosed is a phase-change optical recording medium which has a reflectance and a signal modulation conformed to the CD standard, and which is usable for recording at the same linear velocity as the reproducing velocity specified in the CD standard. The phase-change optical recording medium comprises a metallic layer, a first protective layer, a recording layer, a second protective layer, and a reflecting layer on a substrate, in which recording is performed through change from a crystalline state to an amorphous state in the recording layer. The recording layer comprises a recording material of a Ge--Te--Sb--Se system, and the recording layer has an average composition in a direction of thickness which satisfies the following relations as represented by atomic %: Ge.gtoreq.40%, and Sb+Se.ltoreq.25% The recording medium has a reflectance of not less than 70% with respect to a light beam for reproduction when the recording layer is in one of the crystalline state and the amorphous state, and the recording medium has a reflectance of less than 40% when the recording layer is in the other state. An AuCo alloy is used as the metallic layer.

    摘要翻译： 公开了一种相变光学记录介质，其具有符合CD标准的反射率和信号调制，并且可用于以与CD标准中规定的再现速度相同的线速度进行记录。 相变光记录介质包括在基板上的金属层，第一保护层，记录层，第二保护层和反射层，其中通过从结晶状态转变为非晶状态进行记录 录音层。 记录层包括Ge-Te-Sb-Se系的记录材料，记录层的厚度方向的平均组成满足下列关系：原子％Ge = 40％，Ge Sb + Se <25％当记录层处于结晶状态和非晶状态之一时，记录介质相对于用于再现的光束具有不小于70％的反射率，并且记录介质具有 当记录层处于另一状态时，反射率小于40％。 使用AuCo合金作为金属层。