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    Two-layer optical disk and recording/reproducing optical disk apparatus of the two-layer optical disk
    7.
    发明公开
    Two-layer optical disk and recording/reproducing optical disk apparatus of the two-layer optical disk 审中-公开
    两层光盘和光盘记录/重放装置的两层光盘

    公开(公告)号：EP1764784A2

    公开(公告)日：2007-03-21

    申请号：EP06018978.4

    申请日：2006-09-11

    申请人： NEC Corporation ,  KABUSHIKI KAISHA TOSHIBA

    发明人： Yamanaka, Yutaka ,  Ohkubo, Shuichi ,  Watabe, Kazuo ,  Kashihara, Yutaka ,  Ogawa, Akihito

    IPC分类号： G11B7/007 ,  G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/24038

    摘要： A two-layer recording type optical disk capable of realizing stable recording and reproduction without being affected by another recording layer and an optical disk apparatus for the two-layer recording type optical disk are provided. In layouts of various areas in the optical disk, a position where a border between a recorded part and an unrecorded part is formed on one recording layer is set so that the position is always separated from a position where a border between a recorded part and an unrecorded part is formed on another recording layer by a predetermined clearance amount. Moreover, to a recording layer farther from an incident surface, test recording or data recording is always performed through a recorded part on a closer recording layer.

    摘要翻译： 本发明提供一种双层记录型光能够记录和再现实现稳定磁盘，而不会受到另一记录层和在用于双层记录型光盘的光盘装置。 在在光盘，其中记录部分之间，并且在未记录部分的边界是一个记录层上形成的位置上的各种区域的布局是这样设定，DASS模具位置总是从一个位置分离，其中一个记录部分之间以及在边界 未记录部分被以预定的间隙量形成在另一记录层上。 更完了，到记录层上，从入射面越远，测试记录或数据记录总是通过仔细记录层上的记录部分进行。

    Information recording medium, reproduction method, reproduction apparatus and manufacturing apparatus thereof
    10.
    发明公开
    Information recording medium, reproduction method, reproduction apparatus and manufacturing apparatus thereof 审中-公开
    信息技术公司，Wiedergabeverfahren，WiedergabegerätunddazugehörigerHerstellungsapparat

    公开(公告)号：EP1607975A1

    公开(公告)日：2005-12-21

    申请号：EP05104501.1

    申请日：2005-05-25

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Ogawa, Akihito ,  Kashihara, Yutaka ,  Nagai, Yuji ,  Noda, Chosaku

    IPC分类号： G11B27/24 ,  G11B27/19 ,  G11B7/007

    CPC分类号： G11B7/00745 ,  G11B7/0053 ,  G11B7/24082 ,  G11B7/261 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  G11B2220/2575

    摘要： The numbers of times by which plural types of segments are consecutively arranged are limited, an address reading performance is enhanced and address information is correctly read out based on determination of the number of consecutive segments. A track is divided into physical segments, N (=17) wobble data units of constant length are formed in each physical segment, the wobble data unit (WDU) is defined to include a first unit (P) having a wobble modulation portion in a first half portion, a second unit (S) having a wobble modulation portion in a latter half portion and a third unit (U) having no wobble modulation portion, and the physical segment is defined to have segment types (TYPE 1, 2, 3) which each include the third unit (U) in a certain area thereof without fail and respectively include the first, second and a combination of the first and second units in the remaining areas. In the arrangement on the track, a lower-limit number of times M1 by which the first and second types (TYPE1, TYPE2) are consecutively arranged and an upper-limit number of times M2 by which the second types (TYPE2) are consecutively arranged are limited and the first type (TYPE1) and the second type (TYPE2) are respectively arranged immediately before and after the third type (TYPE3).

    摘要翻译： 连续布置多个类型的段的次数被限制，地址读取性能被增强，并且基于连续段的数量的确定来正确地读出地址信息。 轨道被分成物理段，在每个物理段中形成N（= 17）个恒定长度的摆动数据单元，摆动数据单元（WDU）被定义为包括具有摆动调制部分的第一单元（P） 前半部分，在后半部分具有摆动调制部分的第二单元（S）和没有摆动调制部分的第三单元（U），物理段被定义为具有段类型（类型1,2,3 ），其每一个都包括在其某一区域中的第三单元（U），并且分别包括其余区域中的第一单元，第二单元和第一单元和第二单元的组合。 在轨道上的布置中，连续布置第一和第二类型（TYPE1，TYPE2）的下限次数M1和第二类型（TYPE2）连续排列的上限次数M2 被限制，第一种（TYPE1）和第二类型（TYPE2）分别紧靠在第三种类型（TYPE3）之前和之后。