Constant width burst gate keying pulse generator
US4581630A · kind A · utility
0Cited by
8References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1983 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Aug 30, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/455
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A keying pulse generator for a color television burst gate provides a gating pulse in response to horizontal synchronizing pulses when present and in response to horizontal retrace pulses when sync pulses are absent. A timing circuit is provided to maintain a constant width keying pulse independent of video signal condition and receiver operating characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.