发明名称 Rotating-head video signal recording apparatus
摘要 In an apparatus for recording a video signal having interlaced fields on a recording medium sequentially using a plurality of rotating heads, a rotational phase of a rotating head relative to a vertical synchronizing signal of the video signal to be recorded is relatively switched for a period corresponding to a phase difference between a vertical synchronizing signal and a horizontal synchronizing signal of each field. It is thereby possible to obtain an excellent video signal without producing discontinuity of horizontal synchronizing signals in a reproducing operation even if a video signal of each field is recorded using any of the plurality of rotating heads having different rotational phases. At that time, objective rotational phases of a rotating cylinder provided with the plurality of rotating heads are present in the same number as the number of rotating heads. Hence, the speed of the start-up synchronizing operation is increased.
申请公布号 US5315453(A) 申请公布日期 1994.05.24
申请号 US19910783215 申请日期 1991.10.28
申请人 CANON KABUSHIKI KAISHA 发明人 SATO, KEIJI
分类号 H04N5/7826;G11B15/14;G11B15/18;G11B15/473;H04N5/782;H04N9/79;H04N9/87;(IPC1-7):G11B21/02 主分类号 H04N5/7826
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