发明名称 Information signal reproducing apparatus with selective sampling of error signal continuously indicative of tracking error
摘要 An information signal reproducing apparatus for reproducing information signals from a recording medium on which several parallel tracks are formed, in which a tracking error signal is produced by use of signals reproduced by a head means for tracing the recording medium so as to reproduce signals, and the tracking error signal is sampled with periods which are determined, irrespective of a rotational period of a rotary head, so as to provide a tracking control signal. Further, upon reproduction of information signals from the recording medium on which plural kinds of pilot signal components are recorded at several parallel tracks together with the information signals, a first tracking error signal which is produced in accordance with the pilot signal components among signals reproduced by one of a plurality of heads for tracing the recording medium so as to reproduce signals, and a second tracking error signal which is produced by in accordance with the pilot signal components among signals reproduced by another of the plurality of heads, are selectively used.
申请公布号 US5966265(A) 申请公布日期 1999.10.12
申请号 US19970999821 申请日期 1997.04.02
申请人 CANON KABUSHIKI KAISHA 发明人 TAKAYAMA, NOBUTOSHI
分类号 G11B15/467;G11B5/584;(IPC1-7):G11B5/584 主分类号 G11B15/467
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