Integrated television and video cassette recorder system
US5940572A · kind A · utility
159Cited by
14References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/68
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for processing both a composite video television (TV) signal and a video cassette recorder (VCR) playback signal containing a combined line noise canceller 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.