发明名称 |
Video disc player having time base variations eliminated in both audio and video signals |
摘要 |
A video disc player in which undesirable frequency variations in reproduced video and audio signals due to absence of the color burst signal during the vertical retrace time are eliminated. A first control unit actuates a tangential mirror driver unit in response to a phase difference produced by comparing a horizontal synchronizing signal from the reproduced video signal with a reference color subcarrier signal. The video signal is delayed by an electronically-controlled variable delay line the delay time of which is set on accordance with a phase difference between the color burst signal and a reference horizontal synchronizing signal.
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申请公布号 |
US4425583(A) |
申请公布日期 |
1984.01.10 |
申请号 |
US19810260614 |
申请日期 |
1981.05.05 |
申请人 |
UNIVERSAL PIONEER CORPORATION |
发明人 |
KANAMARU, HITOSHI |
分类号 |
H04N5/85;G11B7/08;G11B7/09;G11B19/28;G11B20/02;H04N9/89;H04N9/893;(IPC1-7):H04N9/49 |
主分类号 |
H04N5/85 |
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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