发明名称 |
TELEVISION SYNCHRONIZING SIGNAL PROCESSING CIRCUIT |
摘要 |
<p>A television synchronizing signal processing circuit includes a reproduction/demodulation circuit for repetitively reading a video signal corresponding to one field from a video signal recording medium and demodulating the video signal and for separating a synchronizing signal from a reproduced/demodulated signal, a first delay circuit for permitting the video signal of the reproduced/demodulated signal which is supplied for every other field from the reproduction/demodulation circuit to be delayed by a time corresponding to one half the period H of a horizontal synchronizing signal, a second delay circuit for delaying a vertical synchronizing signal of the synchronizing signal which is supplied from the reproduction/demodulation circuit, and a waveform synthesizing circuit for synthesizing output signals from the first and second delay circuits to produce a composite video signal. In the processing circuit, the second delay circuit has a variable time TD which is variable within a range of 0 < TD < H/2.</p> |
申请公布号 |
CA1246218(A) |
申请公布日期 |
1988.12.06 |
申请号 |
CA19860498910 |
申请日期 |
1986.01.03 |
申请人 |
TOKYO ELECTRIC CO., LTD.;FUJI PHOTO FILM CO., LTD. |
发明人 |
YAGI, MOTOI;MIYABAYASHI, TADAO;MORIKAWA, YASUO;KOBAYASHI, YASUHITO |
分类号 |
H04N5/04;H04N5/06;H04N5/91;H04N5/93;H04N5/932;(IPC1-7):H04N5/781 |
主分类号 |
H04N5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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