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    Optical disk for use in an optical data recording and/or reproducing apparatus
    22.
    发明公开
    Optical disk for use in an optical data recording and/or reproducing apparatus 失效
    Optische Platte zur Verwendung在einem optischen Datenaufzeichnungs- und / oderWiedergabegerät。

    公开(公告)号：EP0570203A2

    公开(公告)日：1993-11-18

    申请号：EP93303665.9

    申请日：1993-05-12

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Satoh, Isao ,  Fukushima, Yoshihisa ,  Takagi, Yuji ,  Azumatani, Yasushi ,  Hamasaka, Hiroshi ,  Hisakado, Yuji

    IPC分类号： G11B27/28 ,  G11B23/03 ,  G11B7/24 ,  G11B27/32

    CPC分类号： G11B20/10 ,  G11B7/007 ,  G11B7/24 ,  G11B19/02 ,  G11B19/10 ,  G11B19/12 ,  G11B19/20 ,  G11B27/329

    摘要： Compatibilities between a double-sided optical disk and a single-sided optical disk are assured when each disk is subject to data recording and reproduction operations by means of either a one-head type optical data recording and reproduction apparatus or a two-head type optical data recording and reproduction apparatus while allowing vertically inverted cartridge insertion for data recording and reproduction. Provided is an optical disk having a data recording area (25) and a volume management area (26) which includes an access mode registration area (27) for recording therein access mode data such as apparatus data representing the number of optical heads of the optical data recording and reproduction apparatus, the number of volumes of an optical disk, and sector recording order and/or track and sector recording units. Data recording and reproduction operations are effected by detecting the optical head (4A, 4B) facing each recording surface by means of a sensor (28), rotating the optical disk (1) forwardly or reversely, reading out access mode data from the access mode registration area (27), and switching signal paths between a channel data recording and reproduction circuit (7) and a laser drive circuit (8) and a signal reproduction head amplifier circuit by means of a signal selection circuit (18).

    摘要翻译： 当通过单头型光学数据记录和再现装置或双头型光学数据记录和再现装置进行数据记录和再现操作时，确保双面光盘和单面光盘之间的兼容性 数据记录和再现装置，同时允许垂直倒置的盒式磁带插入用于数据记录和再现。 提供了具有数据记录区域（25）和音量管理区域（26）的光盘，其包括用于在其中记录访问模式数据的访问模式注册区域（27），诸如表示光学头的光学头数目的装置数据 数据记录和再现装置，光盘的数量和扇区记录顺序和/或轨道和扇区记录单元。 通过利用传感器（28）检测面对每个记录表面的光学头（4A，4B），使光盘（1）向前或向后旋转，从访问模式读出访问模式数据来实现数据记录和再现操作 注册区域（27），以及信道数据记录和再现电路（7）与激光驱动电路（8）之间的切换信号路径以及借助于信号选择电路（18）的信号再现头放大器电路。

    Double-sided optical disc player
    23.
    发明公开
    Double-sided optical disc player 失效
    Wiedergabegerätfürdoppelseitige optische Platten。

    公开(公告)号：EP0512860A2

    公开(公告)日：1992-11-11

    申请号：EP92304171.9

    申请日：1992-05-08

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Satoh, Isao ,  Fuku, Yoshihisa ,  Takagi, Yuji ,  Azumatani, Yasushi ,  Hamasaka, Hiroshi

    IPC分类号： G11B27/10 ,  G11B21/08 ,  G11B7/085

    CPC分类号： G11B7/08505 ,  G11B21/085 ,  G11B27/105 ,  G11B27/32

    摘要： A double-sided optical disc player operable with a double-sided optical disc (1), which comprises:
    first and second optical heads (4A, 4B) for irradiating laser beams to tracks on opposite sides (3A, 3B) of the double-sided optical disc (1);
    first and second servo means (6A, 6B) for focusing and tracking the laser beams towards predetermined tracks on the opposite sides of the optical disc;
    at least one retrieval means for sending the first and second optical heads towards the predetermined tracks;
    first and second ID read-out means (10A, 10B) for reading out respective sector addresses from associated sector identifiers (ID) on the respective opposite sides of the optical disc;
    a first sector recording and/or production control means (11A) for detecting a target sector when an sector address output from the first ID read-out means (10A) coincides with the target sector on one of the sides of the optical disc and for activating a recording or reproduction of information;
    a second sector recording and/or reproduction control means (11B) for detecting a target sector on the other of the sides of the optical disc and for activating a recording or reproduction of the information; and, an information recording and/or reproducing means (12A, 12B) for recording or reproducing information on or from the target sectors on the respective sides of the optical disc by means of the first and second sector recording and/or reproduction control means. The disc player also includes an ID offset detecting means (21) for calculating, in response to outputs from the ID read-out means, an ID offset value (17) descriptive of an annular displacement in sector position between the opposite sides (3A, 3B) of the optical disc traced by the associated optical heads (4A, 4B); an ID offset retaining means (17) for retaining the ID offset value (18);
    an adder means for adding the ID offset value to an output from the second ID read-out means; and the second sector recording and/or reproduction control means (11B) detecting a target sector when a corrected sector address output from the adder means coincides with the target sector on the other of the sides of the optical disc.

    摘要翻译： 一种双面光盘播放器，其可操作于双面光盘（1），其包括：用于将激光束照射到双面光盘的相对侧（3A，3B）上的轨道的第一和第二光学头（4A，4B） 双面光盘（1）; 第一和第二伺服装置（6A，6B），用于将激光束朝向在光盘的相对侧上的预定轨道聚焦和跟踪; 至少一个检索装置，用于将第一和第二光学头朝向预定轨道发送; 第一和第二ID读出装置（10A，10B），用于从光盘的相应相对侧上的相关扇区标识符（ID）读出相应的扇区地址; 第一扇区记录和/或生产控制装置（11A），用于当从第一ID读出装置（10A）输出的扇区地址与光盘的一侧上的目标扇区重合时，用于检测目标扇区，并且 激活信息的记录或再现; 第二扇区记录和/或再现控制装置（11B），用于检测光盘另一侧的目标扇区并激活信息的记录或再现; 以及用于借助于第一和第二扇区记录和/或再现控制装置在光盘的各个侧面上的目标扇区上记录或再现信息的信息记录和/或再现装置（12A，12B）。 光盘播放器还包括ID偏移检测装置（21），用于响应于来自ID读出装置的输出，计算描述在相对侧（3A，3A）之间的扇区位置的环形位移的ID偏移值（17） 由相关联的光学头（4A，4B）跟踪的光盘的图3B）; 用于保持ID偏移值（18）的ID偏移保持装置（17）; 加法器装置，用于将ID偏移值与来自第二ID读出装置的输出相加; 并且当从加法器装置输出的校正扇区地址与光盘的另一侧上的目标扇区一致时，第二扇区记录和/或再现控制装置（11B）检测目标扇区。

    Multi-layered optical disk
    30.
    发明公开
    Multi-layered optical disk 失效
    Mehrlagige optische普拉特

    公开(公告)号：EP0731461A1

    公开(公告)日：1996-09-11

    申请号：EP96107086.9

    申请日：1990-10-29

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Satoh, Isao ,  Fukushima, Yoshisisa ,  Takagi, Yuji ,  Azumatani, Yasushi ,  Hamasaka, Hiroshi

    IPC分类号： G11B7/24 ,  G11B7/085

    CPC分类号： G11B7/24038 ,  G11B7/00736 ,  G11B7/00745 ,  G11B7/08511 ,  G11B7/0908 ,  G11B7/0945 ,  G11B7/24 ,  G11B7/26 ,  G11B2007/0013

    摘要： A multi-layered optical disk comprises recording layers (3, 4) on which data is recorded and reproduced by focusing a light beam on one of the recording layers (3, 4), each recording layer (3, 4) having an identification section (ID a , ID b ) storing an address of the recording layer characterised in that the recording layers are composed of at least a first recording layer (3) made of a first disk substrate and a second recording layer (4) made of a second disk substrate and a transparent binder layer (5) having a thickness of 10 to 100µm is disposed as a spacer between the first recording layer (3) and the second recording layer (4).

    摘要翻译： 一种多层光盘包括通过将光束聚焦在其中一个记录层（3,4）上而在其上记录和再现数据的记录层），每个记录层（3,4）具有识别部分 （IDa，IDb），其存储记录层的地址，其特征在于记录层由至少由第一盘基片制成的第一记录层（3）和由第二盘基片制成的第二记录层 并且在第一记录层（3）和第二记录层（4）之间设置有厚度为10至100μm的透明粘合剂层（5）作为间隔物。