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    Head positioning device for optical disk drive
    2.
    发明公开
    Head positioning device for optical disk drive 失效
    用于光盘驱动器的头部定位装置

    公开(公告)号：EP0294545A3

    公开(公告)日：1990-05-30

    申请号：EP88104654.4

    申请日：1988-03-23

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Nakatsu, Keiji Mitsubishi Denki K.K. ,  Kamitsu, Katsuaki Mitsubishi Denki K.K. ,  Ogawa, Masaharu Mitsubishi Denki K.K.

    IPC分类号： G11B7/08 ,  G11B7/085 ,  G11B19/20

    CPC分类号： G11B19/20 ,  G11B7/08582

    摘要： An optical disk drive device positions a carriage carrying an optical head for directing a light beam towards an optical disk having tracks for information storage and for receiving a reflected beam from said optical disk. The optical disk device includes a retract means (30) comprising a signal instruction circuit (14) for providing the number of tracks to be traversed, an access start instruction and a retract instruction and a reference voltage generating circuit (15) responsive to these instructions to provide the residual track number and a carriage moving signal and operating such that, immediately before the drive device is stopped from operating the carriage mounting the optical head thereon is moved by the access operation from any track to a first predetermined position according to the access start instruction and then moved from the first predetermined position to a second predetermined position according to the retract instruction at a predetermined reference speed.

    Head positioning device for optical disk drive
    5.
    发明公开
    Head positioning device for optical disk drive 失效
    Kopfpositionierungseinrichtungfüroptische Platteneinheit。

    公开(公告)号：EP0294545A2

    公开(公告)日：1988-12-14

    申请号：EP88104654.4

    申请日：1988-03-23

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Nakatsu, Keiji Mitsubishi Denki K.K. ,  Kamitsu, Katsuaki Mitsubishi Denki K.K. ,  Ogawa, Masaharu Mitsubishi Denki K.K.

    IPC分类号： G11B7/08 ,  G11B7/085 ,  G11B19/20

    CPC分类号： G11B19/20 ,  G11B7/08582

    摘要： An optical disk drive device positions a carriage carrying an optical head for directing a light beam towards an optical disk having tracks for information storage and for receiving a reflected beam from said optical disk. The optical disk device includes a retract means (30) comprising a signal instruction circuit (14) for providing the number of tracks to be traversed, an access start instruction and a retract instruction and a reference voltage generating circuit (15) responsive to these instructions to provide the residual track number and a carriage moving signal and operating such that, immediately before the drive device is stopped from operating the carriage mounting the optical head thereon is moved by the access operation from any track to a first predetermined position according to the access start instruction and then moved from the first predetermined position to a second predetermined position according to the retract instruction at a predetermined reference speed.

    摘要翻译： 光盘驱动装置将携带用于将光束引导到具有用于信息存储的轨道的光盘的光学头的托架定位并用于从所述光盘接收反射光束。 光盘装置包括一个缩回装置（30），它包括一个用于提供待运行的轨迹数量的信号指令电路（14），一个访问开始指令和一个退出指令以及一个响应这些指令的参考电压产生电路（15） 以提供剩余轨道号和滑架移动信号并操作，使得在驱动装置停止之前，驱动装置停止操作，其上的光学头通过存取操作从任何轨道移动到根据访问的第一预定位置 开始指示，然后根据预定参考速度的缩回指令从第一预定位置移动到第二预定位置。