Automatic video signal control circuit
US3947631A · kind A · utility
12Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1974 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | Feb 27, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/53
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automatic video signal control circuit for a television receiver includes apparatus for generating horizontal and vertical pulse signals to effect cancellation of the horizontal and vertical blanking pulse signals in a received television signal and for providing a video signal having a black level derived from the peak black level in the video portion of the received signal and a white level derived from the combined average and peak white level in the video portion of the received signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.