发明名称 |
Reproducing apparatus with erasing device and erasing function based on frequency multiplexed and/or DPSK coded signal |
摘要 |
An erasing device for a magnetic video recorder is disclosed which includes a means for reproducing a code signal and a video signal from a magnetic medium. The code signal is discriminated to decide whether the video signal is a field video signal or a frame video signal. When the video signal is discriminated to be the frame video signal, the erasing device erases the video signal over a broader range than when the video signal is discriminated to be a field video signal.
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申请公布号 |
US4849832(A) |
申请公布日期 |
1989.07.18 |
申请号 |
US19870033339 |
申请日期 |
1987.03.31 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YAMAGATA, SHIGEO;OGURA, TOKIHIKO;TAKEI, MASAHIRO;SUZUKI, YASUTOMO |
分类号 |
G11B5/012;G11B19/04;G11B33/10;H04N5/781;H04N5/92;H04N5/93 |
主分类号 |
G11B5/012 |
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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