发明名称 Track seeking control apparatus for use in data recording/reproduction systems having data tracks thereon
摘要 A track seeking control apparatus includes an optical head for generating a signal comprising a train of track cross pulses when it crosses tracks on a recording medium. A first counter counts the train of track cross pulses generated by the optical head, and produces a signal representative of a count value of the first counter. A signal generator generates a signal of a frequency varying proportional to a frequency of the track cross pulse signal. A second counter counts the train of track cross pulses generated by the optical head, based on the output signal of the signal generator, and produces an output signal when a count by the second counter reaches a desired value. A second pulse generator outputs to the first counter a correcting pulse for correcting the count value of the first counter, in response to the output signal produced by the second counter.
申请公布号 US5130964(A) 申请公布日期 1992.07.14
申请号 US19900485972 申请日期 1990.02.27
申请人 OLYMPUS OPTICAL CO., LTD. 发明人 ITO, KENICHI
分类号 G11B21/08;G11B7/085;G11B21/10 主分类号 G11B21/08
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