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    • 7. 发明授权
    • Track cross signal correction apparatus
    • 跟踪交叉信号校正装置
    • US5878006A
    • 1999-03-02
    • US853749
    • 1997-05-09
    • Won-Seok Jung
    • Won-Seok Jung
    • G11B20/10G11B7/00G11B7/005G11B7/085
    • G11B7/08541
    • A track cross signal correction apparatus removes noise components contained in a track cross signal. The apparatus includes mask signal generator for comparing pulse widths of the received track cross signals with threshold values, based on the pulse width of a previous track cross signal. A mask signal is generated according to the comparison result. A corrector outputs a received track cross signal when mask signals are generated from the mask signal generator. The track cross signal correction apparatus accurately performs a track seek operation in a medium such as a CD-ROM which requires high-speed access.
    • 轨道交叉信号校正装置去除包含在轨道交叉信号中的噪声分量。 该装置包括掩模信号发生器,用于基于先前的轨道交叉信号的脉冲宽度,将接收的轨道交叉信号的脉冲宽度与阈值进行比较。 根据比较结果生成屏蔽信号。 当从掩模信号发生器产生掩蔽信号时,校正器输出接收的轨道交叉信号。 轨道交叉信号校正装置在需要高速存取的诸如CD-ROM的介质中精确地执行轨道搜索操作。