| 摘要 |
<p>A system for processing both a composite video television (TV) signal and a video cassette recorder (VCR) playback signal containing a combined line noise canceler and comb filter sharing a single delay line and a 3.58 MHz oscillator that drives a quadrature demodulator for demodulating both playback chrominance signals extracted from the playback signal and television chrominance signals extracted from the television signal. The system also provides automatic gain control to both the composite video TV signal and the VCR playback signal.</p> |
