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101 条记录 (耗时 0.048 秒)

    Information recording medium, reproduction method, reproduction apparatus and manufacturing apparatus thereof
    10.
    发明申请
    Information recording medium, reproduction method, reproduction apparatus and manufacturing apparatus thereof 审中-公开
    信息记录介质，再现方法，再现装置及其制造装置

    公开(公告)号：US20050276213A1

    公开(公告)日：2005-12-15

    申请号：US11150341

    申请日：2005-06-13

    申请人： Akihito Ogawa ,  Chosaku Noda ,  Yutaka Kashihara ,  Yuji Nagai

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

    IPC分类号： G11B7/005 ,  G11B7/007 ,  G11B7/26 ,  G11B27/19 ,  G11B27/24 ,  G11B7/24

    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： 多个段连续排列的次数被限制，地址读取性能得到提高，并且基于确定连续段的数量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）连续布置的上限次数M2 是第一类型（TYPE1）和第二类型（TYPE2）分别紧靠在第三类型（TYPE3）之前和之后。