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    • 5. 发明公开
    • 패터닝된 매체의 클록 추출 방법, 패터닝된 매체의 클록추출 회로, 및 패터닝된 매체
    • 时间提取方法,用于图形介质的时钟提取方法和图形化介质的时钟提取电路
    • KR1020080027438A
    • 2008-03-27
    • KR1020070047637
    • 2007-05-16
    • 후지쯔 가부시끼가이샤
    • 이즈미하루히코
    • G11B5/85G11B5/65G11B5/02
    • G11B20/14B82Y10/00G11B5/59616G11B5/743G11B5/746G11B5/855G11B2220/2516
    • A method for extracting a clock of a patterned medium, a clock extraction circuit of a patterned medium, and a patterned medium are provided to match the timing of a clock signal to a magnetic dot accurately by synchronizing the clock signal to a detection timing of the magnetic signal of the magnetic dot. A method for extracting a clock of a patterned medium comprises the steps: detecting a magnetic signal recorded in the patterned medium having a magnetic part wherein magnetic dots are aligned at certain intervals for recording the magnetic signal, and a nonmagnetic part not recording the magnetic signal; and identifying a section where the absolute value of amplitude of the magnetic signal is continuously less than a certain value, and synchronizing the clock signal with the timing of start or end of the identified nonmagnetic part or a detection timing of the magnetic signal of the magnetic dot of the magnetic part following the nonmagnetic part.
    • 提供用于提取图案化介质的时钟的方法,图案化介质的时钟提取电路和图案化介质,以通过将时钟信号与时钟信号与时钟信号的检测定时同步来精确地匹配时钟信号与磁点的定时 磁点的磁信号。 一种用于提取图案化介质的时钟的方法包括以下步骤:检测记录在具有磁性部分的图案化介质中的磁信号,其中磁点以一定间隔排列以记录磁信号,以及非磁性部分,不记录磁信号 ; 并且识别磁信号的幅度的绝对值连续地小于一定值的部分,并且将时钟信号与所识别的非磁性部分的开始或结束的定时或磁性的磁信号的检测定时同步 磁性部分的点在非磁性部分之后。