发明名称 |
Adaptive distortion elimination circuitry for a video disc player |
摘要 |
The present invention describes non-linear circuitry for reducing intermodulation distortion occurring in signals recovered from a disc record. The non-linear circuit generates complementary signals in a diode modulator for cancelling the undesired distortion components of the recovered signal. A synchronous detector in a servo loop with the non-linear circuit samples the distortion component of the resultant baseband video signal and applies bias to condition the non-linear circuit to further reduce the distortion-components. A reference signal for the detector is derived from the sound components of the recovered signal.
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申请公布号 |
US4329712(A) |
申请公布日期 |
1982.05.11 |
申请号 |
US19800162592 |
申请日期 |
1980.06.24 |
申请人 |
RCA CORPORATION |
发明人 |
LANG, FRANK B. |
分类号 |
H04N5/93;G11B9/06;G11B20/02;H04N5/931;(IPC1-7):H04N5/76;H04N5/21 |
主分类号 |
H04N5/93 |
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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