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    • 11. 发明授权
    • Apparatus for reproducing information recorded on optical disc
    • 用于再现记录在光盘上的信息的装置
    • US06356523B1
    • 2002-03-12
    • US09086543
    • 1998-05-29
    • Seiichi Hasebe
    • Seiichi Hasebe
    • G11B700
    • G11B19/28G11B19/247
    • An apparatus for reproducing information recorded on an optical disc which can favorably accomplish a time base correction for a read signal in a simple configuration. Also, the apparatus precisely removes jitter components produced when a driving signal is supplied to a spindle motor. The apparatus has a spindle motor for rotating an optical disc, a pickup for optically reading a recorded signal on the optical disc to generate a read signal corresponding to the recorded signal, and an A/D converter for digitizing the read signal to reproduced an encoded signal. The apparatus is provided with a controller for supplying the spindle motor with driving power. The controller has an unnecessary component removing filter for removing high frequency components from the motor driving power.
    • 一种用于再现记录在光盘上的信息的装置,其可以以简单的配置有利地完成读取信号的时基校正。 此外,该设备精确地消除了当向主轴电动机提供驱动信号时产生的抖动分量。 该装置具有用于旋转光盘的主轴电动机,用于光学读取光盘上的记录信号的拾取器以产生对应于所记录的信号的读取信号;以及A / D转换器,用于将读取的信号数字化以再现编码的 信号。 该装置设置有用于向主轴电动机提供驱动力的控制器。 该控制器具有不必要的部件去除滤波器,用于从电机驱动功率中去除高频分量。