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143 条记录 (耗时 0.035 秒)

    Light beam condensing apparatus and method of driving optical recording medium by applying the apparatus
    96.
    发明授权
    Light beam condensing apparatus and method of driving optical recording medium by applying the apparatus 失效
    光束聚光装置和通过应用该装置驱动光记录介质的方法

    公开(公告)号：US06341105B1

    公开(公告)日：2002-01-22

    申请号：US09220633

    申请日：1998-12-24

    申请人： Kazuhiko Nakane

    发明人： Kazuhiko Nakane

    IPC分类号： G11B509

    CPC分类号： B82Y10/00 ,  G11B7/005 ,  G11B7/128 ,  G11B7/1381 ,  G11B7/139 ,  G11B11/10532 ,  G11B2007/13727

    摘要： A light beam condensing apparatus is provided to introduce a condensing spot of a laser beam onto an optical recording medium such as optical disks, and a method of driving the optical recording medium by applying the apparatus is disclosed. There is provided modulation means 111 provided between a collimate lens 102 and an objective lens 105, for externally controlling and varying an amplitude or a phase of a collimate beam 104. The modulation means 111 is mechanically or electrically driven. Further, the modulation means 111 can be switched according to an operation mode of a drive unit or a kind of a recording medium 106 so as to provide a desired condensing spot shape.

    摘要翻译： 提供一种光束聚光装置，用于将激光束的聚光点引入诸如光盘的光学记录介质上，并且公开了通过应用该装置驱动光学记录介质的方法。提供了调制装置111， 准直透镜102和物镜105，用于外部控制和改变准直光束104的幅度或相位。调制装置111机械地或电驱动。 此外，可以根据驱动单元的操作模式或记录介质106的种类来切换调制装置111，以便提供所需的聚光点形状。

    Optical disk and optical disk drive device
    98.
    发明授权
    Optical disk and optical disk drive device 有权
    光盘和光盘驱动器

    公开(公告)号：US6147961A

    公开(公告)日：2000-11-14

    申请号：US478991

    申请日：2000-01-07

    申请人： Masato Nagasawa ,  Kazuhiko Nakane ,  Tsuyoshi Katayama ,  Kouichi Komawaki

    发明人： Masato Nagasawa ,  Kazuhiko Nakane ,  Tsuyoshi Katayama ,  Kouichi Komawaki

    IPC分类号： H04N5/85 ,  G11B7/00 ,  G11B7/004 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B19/12 ,  G11B19/247 ,  G11B19/28 ,  G11B20/12 ,  G11B20/14 ,  G11B27/19 ,  G11B27/30 ,  G11B7/24 ,  G11B11/00

    CPC分类号： G11B19/247 ,  G11B19/12 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/013 ,  G11B7/0901 ,  G11B20/1258 ,  G11B20/1426 ,  G11B2220/20 ,  G11B7/08517 ,  G11B7/08541 ,  G11B7/0938

    摘要： In optical disk having information recording tracks in the form of land and groove tracks, the disk being divided into a plurality of annular zones, each revolution of the information recording track belonging to one of the zones, each revolution of the information recording track being divided into a plurality of sectors, the disk having a header portion at the head of each sector, the header portion including a recognition pattern which is formed of a sequence of pits having a pattern which is not used as a pattern for data or address in the information recording part. The disk may be of a land/groove single-spiral configuration. The header portion for each sector may have a plurality of sub-headers, including address of the sector, and first and second recognition patterns. The address of the sector, and the first recognition pattern may be provided, being shifted in one radial direction by half a track pitch, the second recognition pattern being provided, being shifted in the other radial direction by half a track pitch.

    摘要翻译： 在具有信息记录轨迹的光盘中，盘状被划分成多个环形区域，信息记录道的每转一圈属于其中一个区域，信息记录道的每转都被划分 在多个扇区中，盘具有在每个扇区的头部的头部部分，标题部分包括识别图案，该识别图案由具有不用作图形中的数据或地址的图​​案的凹坑序列形成 信息记录部分。 盘可以是槽脊/凹槽单螺旋构型。 每个扇区的报头部分可以具有多个子报头，包括扇区的地址以及第一和第二识别模式。 可以提供扇区的地址和第一识别图案，其在一个径向方向上移动半个轨道间距，提供第二识别图案，在另一个径向方向上移动半个轨道间距。