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186 条记录 (耗时 0.021 秒)

    Multi-layered optical disk
    1.
    发明公开
    Multi-layered optical disk 失效
    多层光盘

    公开(公告)号：EP1515316A3

    公开(公告)日：2006-06-07

    申请号：EP04076975.4

    申请日：1990-10-29

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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

    IPC分类号： 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 method of selectively accessing a desired recording layer on a multi-layered optical disk is described. The multi-layered optical disk comprises a first recording layer (3; 7a) superposed on a first base plate (2), a second recording layer (4; 7c) superposed on a second base plate (2), and a spacer (5) of adhesive disposed between the first recording layer (3; 7a) and the second recording layer (4; 7c). Each recording layer (3, 4; 7a, 7b, 7c) has an identification section (ID a , ID b ). Information is recorded on and/or reproduced from the recording layers (3, 4; 7a, 7b, 7c) by a focused light beam. The method comprises changing the focus of the light beam and detecting zero cross points of respective focusing error signal S curves, each S curve corresponding to a respective recording layer, until the same number of zero cross points as an ordinal number of the desired recording layer is detected. The correct selection of the recording layer (3, 4; 7a, 7b, 7c) is confirmed by reading an identification section (ID a , ID b ) thereof which stores its recording layer address.

    摘要翻译： 描述了选择性访问多层光盘上的期望记录层的方法。 该多层光盘包括叠置在第一基板（2）上的第一记录层（3; 7a），叠加在第二基板（2）上的第二记录层（4; 7c）以及隔离物（5 ）设置在第一记录层（3; 7a）和第二记录层（4; 7c）之间的粘合剂。 每个记录层（3,4; 7a，7b，7c）具有识别部分（IDa，IDb）。 信息通过聚焦光束记录在记录层（3,4，7a，7b，7c）上和/或从记录层（3,4，7a，7b，7c）再现。 该方法包括改变光束的焦点并检测各个聚焦误差信号S曲线的零交叉点，每个S曲线对应于相应的记录层，直到与期望记录层的序数相同数量的零交叉点 被检测到。 通过读取存储其记录层地址的识别部分（IDa，IDb）来确认记录层（3,4; 7a，7b，7c）的正确选择。

    Multi-layered optical disk
    2.
    发明公开
    Multi-layered optical disk 失效
    Mehrschichtige optische普拉特

    公开(公告)号：EP1498887A3

    公开(公告)日：2006-06-07

    申请号：EP04076976.2

    申请日：1990-10-29

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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

    IPC分类号： G11B7/085 ,  G11B7/007 ,  G11B7/24

    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 method of selectively accessing a desired recording layer on a multi-layered optical disk is described. The multi-layered optical disk comprises a first recording layer (3; 7a) superposed on a first base plate (2), a second recording layer (4; 7c) superposed on a second base plate (2), and a spacer (5) of adhesive disposed between the first recording layer (3; 7a) and the second recording layer (4; 7c). Each recording layer (3, 4; 7a, 7b, 7c) has an identification section (ID a , ID b ). Information is recorded on and/or reproduced from the recording layers (3, 4; 7a, 7b, 7c) by a focused light beam. The method comprises changing the focus of the light beam and detecting zero cross points of respective focusing error signal S curves, each S curve corresponding to a respective recording layer, until the same number of zero cross points as an ordinal number of the desired recording layer is detected. The correct selection of the recording layer (3, 4; 7a, 7b, 7c) is confirmed by reading an identification section (ID a , ID b ) thereof which stores its recording layer address.

    摘要翻译： 描述了选择性地访问多层光盘上的所需记录层的方法。 多层光盘包括叠置在第一基板（2）上的第一记录层（3; 7a），叠置在第二基板（2）上的第二记录层（4; 7c）和间隔件 ）设置在第一记录层（3; 7a）和第二记录层（4; 7c）之间。 每个记录层（3,4; 7a，7b，7c）具有识别部分（ID a，ID b）。 通过聚焦光束将信息记录在记录层（3,4; 7a，7b，7c）上和/或从记录层再现。 该方法包括改变光束的焦点并检测各个聚焦误差信号S曲线的零交叉点，每个S曲线对应于相应的记录层，直到与所需记录层的序数相同数量的零交叉点 被检测到。 通过读取存储其记录层地址的识别部分（ID a，ID b）来确认记录层（3,4; 7a，7b，7c）的正确选择。

    Multi-layered optical disk
    5.
    发明公开
    Multi-layered optical disk 失效
    多层光盘

    公开(公告)号：EP0910072A3

    公开(公告)日：2002-12-04

    申请号：EP98120224.5

    申请日：1990-10-29

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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

    IPC分类号： G11B7/085 ,  G11B7/007 ,  G11B7/24

    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 method of selectively accessing a desired recording layer on a multi-layered optical disk is described. The multi-layered optical disk comprises a first recording layer (3) superposed on a first base plate (2), a second recording layer (4) superposed on a second base plate (2), and a spacer (5) of adhesive disposed between the first recording layer (3) and the second recording layer (4). Each recording layer (3,4) has an identification section (ID a , ID b ). Information is recorded on and/or reproduced from the recording layers (3,4) by a focused light beam. The method comprises changing the focus of the light beam and detecting zero cross points of respective focusing error signal S curves, each S curve corresponding to a respective recording layer, until the same number of zero cross points as an ordinal number of the desired recording layer is detected. The correct selection of the recording layer (3,4) is confirmed by reading an identification section (ID a , ID b ) thereof which stores its recording layer address.

    摘要翻译： 描述了选择性访问多层光盘上的期望记录层的方法。 该多层光盘包括叠置在第一基板（2）上的第一记录层（3），叠加在第二基板（2）上的第二记录层（4）和设置有粘合剂的垫片（5） 在第一记录层（3）和第二记录层（4）之间。 每个记录层（3,4）具有识别部分（IDa，IDb）。 信息通过聚焦光束记录在记录层（3,4）上和/或从记录层（3,4）再现。 该方法包括改变光束的焦点并检测各个聚焦误差信号S曲线的零交叉点，每个S曲线对应于相应的记录层，直到与期望记录层的序数相同数量的零交叉点 被检测到。 通过读取存储其记录层地址的识别部分（IDa，IDb）来确认记录层（3,4）的正确选择。

    Optical disc and optical disc driving apparatus
    6.
    发明公开
    Optical disc and optical disc driving apparatus 失效
    Optische Platte und Laufwerkdafür

    公开(公告)号：EP1202257A2

    公开(公告)日：2002-05-02

    申请号：EP02000428.9

    申请日：1997-06-24

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA ,  MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Nakane, Kazuhiro ,  Ohata, Hiroyuki ,  Nagasawa, Masato ,  Gotoh, Kenji ,  Ishida, Yoshinobu ,  Satoh, Isao ,  Ohara, Shunji ,  Ishida, Takashi ,  Takemura, Yoshinari

    IPC分类号： G11B7/007 ,  G11B7/09

    CPC分类号： G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B7/094 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027

    摘要： An optical disc using a single-spiral land and groove track format enabling accurate tracking offset correction and reliable detection of the transition point between a land track and a groove track, and a driving apparatus therefor, are disclosed. Four physical address areas PID1, PID2, PID3, and PID4 are recorded to a header area such that PID1 and PID2 are offset one-half track pitch toward the outside circumference of the disc from the groove track center, and PID3 and PID4 are offset one-half track pitch toward the inside circumference of the disc from the groove track center, and the physical address areas PID1 - PID4 can be detected by means of a difference signal in the radial direction. The single frequency pattern area VFO at the beginning of each PID is lengthened by PID1 and PID3, thereby enabling tracking offset correction using a sum signal, and detection of the land-groove transition point using a difference signal obtained from the PID offset. The frequency of the VFO pattern may be set lower than the highest frequency of the channel bit sequences of the modulation method used on the disc. Address marks may employ a channel bit pattern which includes two sequenses which are longer than the longest mark length of the modulation method.

    摘要翻译： 公开了一种使用单螺旋纹脊和凹槽轨道格式的光盘，其能够进行轨迹和凹槽轨道之间的转变点的精确的跟踪偏移校正和可靠的检测，以及其驱动装置。 四个物理地址区域PID1，PID2，PID3和PID4被记录到标题区域，使得PID1和PID2从凹槽轨道中心向盘的外圆周偏移二分之一的轨道间距，并且PID3和PID4偏移一个 从槽轨道中心朝向盘的内圆周方向的轨道间距，并且物理地址区域PID1-PID4可以通过径向方向上的差分信号来检测。 每个PID开始时的单频模式区域VFO由PID1和PID3延长，从而使用和信号进行跟踪偏移校正，并使用从PID偏移获得的差分信号来检测纹槽转换点。 VFO模式的频率可以被设置为低于在盘上使用的调制方法的信道位序列的最高频率。 地址标记可以采用包括比调制方法的最长标记长度更长的两个序列的信道位模式。