公开(公告)号：US20060044959A1

公开(公告)日：2006-03-02

申请号：US10710948

申请日：2004-08-13

申请人： Pi-Hai Liu ,  Chun-nan Chen

发明人： Pi-Hai Liu ,  Chun-nan Chen

IPC分类号： G11B7/00

CPC分类号： G11B27/24 ,  G11B7/0053 ,  G11B2220/216 ,  G11B2220/2541 ,  G11B2220/2562 ,  G11B2220/2579

摘要： An apparatus for detecting physical marks from a wobble signal includes a matching value operation unit, a threshold value generator and a physical mark indicator. A wobble signal is converted into a matched signal by the matching value operation unit according to the waveform difference between a normal clock signal or a specific matching reference signal and itself, wherein the matching reference signal needs to highlight the existed physical mark. The physical mark indicator designates a threshold value that depends on the status of the wobble signal, and compares the matched signal with the threshold value to output a physical mark indication signal. The threshold value is selected from at least two different default values. Furthermore, a decoder is employed to convert the physical mark indication signal into wobble data with physical address information.

摘要翻译： 用于从摆动信号检测物理标记的装置包括匹配值操作单元，阈值发生器和物理标记指示器。 根据正常时钟信号或特定匹配参考信号与其自身之间的波形差，由匹配值运算单元将摆动信号转换成匹配信号，其中匹配参考信号需要突出显示存在的物理标记。 物理标志指​​示器指定取决于摆动信号的状态的阈值，并将匹配的信号与阈值进行比较，以输出物理标记指示信号。 阈值从至少两个不同的默认值中选择。 此外，使用解码器将物理标记指示信号转换成具有物理地址信息的摆动数据。