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    Optical disk capable of recording information on both groove and land tracks
    41.
    发明授权
    Optical disk capable of recording information on both groove and land tracks 失效
    能够在凹槽和纹路轨迹上记录信息的光盘

    公开(公告)号：US5508995A

    公开(公告)日：1996-04-16

    申请号：US275984

    申请日：1994-07-15

    申请人： Mitsurou Moriya ,  Yasuhiro Sugihara ,  Shunji Oohara ,  Yasuki Matsumoto ,  Shin-ichi Yamada

    发明人： Mitsurou Moriya ,  Yasuhiro Sugihara ,  Shunji Oohara ,  Yasuki Matsumoto ,  Shin-ichi Yamada

    IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/26 ,  G11B11/105 ,  G11B7/24

    CPC分类号： G11B7/00745 ,  G11B7/00718 ,  G11B7/0938 ,  G11B7/24085 ,  G11B11/10578 ,  G11B7/26

    摘要： An optical recording medium includes a groove track and a land track provided on a resin substrate. Each of the tracks is divided into a plurality of sectors for every turn. Each sector has an ID region, a servo region, and an information region. A pit in the ID region is formed so as to span across both the groove track and the land track. The first wobble pit and the second wobble pit are provided on both sides of the center line of each track, and they are spaced with each other in the direction of the track. Thus, since a larger width of the pit can be provided, production of the optical recording medium can be facilitated. Moreover, since the center of the track can be detected accurately by the first and second wobble pits, accurate tracking control can be performed.

    摘要翻译： 光记录介质包括设置在树脂基板上的槽轨道和槽脊轨道。 每个轨道每转一圈分成多个扇区。 每个扇区具有ID区域，伺服区域和信息区域。 ID区域中的凹坑形成为跨越凹槽轨道和槽脊轨道跨过。 第一摆动凹坑和第二摆动凹坑设置在每个轨道的中心线的两侧，并且它们在轨道的方向上彼此间隔开。 因此，由于可以提供更大的凹坑宽度，所以可以方便生产光学记录介质。 此外，由于可以通过第一和第二摆动坑精确地检测轨道的中心，因此可以进行精确的跟踪控制。

    Optical disk apparatus
    43.
    再颁专利
    Optical disk apparatus 有权
    光盘装置

    公开(公告)号：USRE40946E1

    公开(公告)日：2009-10-27

    申请号：US10677169

    申请日：2003-10-02

    申请人： Katsuya Watanabe ,  Mitsurou Moriya ,  Shin-ichi Yamada ,  Yasuaki Edahiro ,  Takeharu Yamamoto

    发明人： Katsuya Watanabe ,  Mitsurou Moriya ,  Shin-ichi Yamada ,  Yasuaki Edahiro ,  Takeharu Yamamoto

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B2007/0006 ,  G11B2007/0013

    摘要： An optical disk apparatus comprises a focusing means for focusing a light beam on a recording medium having first and second information faces; means for moving a focal point of the light beam in a direction substantially perpendicular to the information faces of the recording medium; means for detecting a reflected light from the recording medium; means for detecting a focus condition of the light beam on the basis on an output signal from the reflected light detecting means; a focus control means for driving the focal point moving means on the basis of an output signal from the focus condition detecting means, and controlling the light beam so that the focus condition of the light beam becomes a prescribed focus condition; and a focus jumping means for moving the focal point of the light beam from the first information face to the second information face by driving the focal point moving means.

    摘要翻译： 光盘装置包括用于将光束聚焦在具有第一和第二信息面的记录介质上的聚焦装置; 用于沿着与记录介质的信息面大致垂直的方向移动光束的焦点的装置; 用于检测来自记录介质的反射光的装置; 用于基于来自反射光检测装置的输出信号检测光束的聚焦条件的装置; 焦点控制装置，用于根据来自聚焦条件检测装置的输出信号驱动焦点移动装置，并控制光束使得光束的聚焦条件成为规定的聚焦条件; 以及聚焦跳跃装置，用于通过驱动焦点移动装置将光束的焦点从第一信息面移动到第二信息面。

    Optical disk apparatus
    48.
    发明授权
    Optical disk apparatus 有权
    光盘装置

    公开(公告)号：US06493304B2

    公开(公告)日：2002-12-10

    申请号：US09929225

    申请日：2001-08-13

    申请人： Katsuya Watanabe ,  Takeharu Yamamoto ,  Takashi Kishimoto ,  Mitsurou Moriya

    发明人： Katsuya Watanabe ,  Takeharu Yamamoto ,  Takashi Kishimoto ,  Mitsurou Moriya

    IPC分类号： G11B700

    CPC分类号： G11B19/12 ,  G11B7/08523

    摘要： An optical disk apparatus for reproducing, or recording, information from plural types of information carriers, including: two or more light sources with different wavelengths; converging parts for converging light beams emitted from the light sources on the information carrier; movement parts for moving the converged light beam in a direction substantially perpendicular to the surface of the information carrier; convergence condition detection parts for outputting a signal corresponding to the convergence condition of the light beam on the information carrier; amplitude detection parts for measuring the amplitude of the convergence condition signal; and focus control parts for driving the movement parts in accordance with the convergence condition signal and performing control so that the convergence condition of the light beam on the information carrier becomes substantially constant. Upon start, or restart, the apparatus determines the type of loaded information carrier based on a signal from the amplitude detection parts.

    摘要翻译： 一种用于再现或记录来自多种信息载体的信息的光盘装置，包括：两个或更多个具有不同波长的光源; 用于将从光源发射的光束会聚在信息载体上的会聚部分; 用于沿着基本上垂直于信息载体表面的方向移动会聚光束的运动部件; 会聚条件检测部分，用于输出与信息载体上的光束的会聚条件对应的信号; 用于测量收敛条件信号的振幅的振幅检测部分; 以及用于根据会聚条件信号驱动运动部分的聚焦控制部分，并进行控制，使得光束在信息载体上的会聚状态变得基本恒定。 在开始或重新启动时，装置基于来自幅度检测部分的信号来确定加载的信息载体的类型。