Antijitter arrangement for synchronizing pulse separator
US4745477A · kind A · utility
5Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A synchronizing pulse separator for a video apparatus provides horizontal and vertical synchronizing pulses from a composite video signal. The sync separator incorporates a compensation circuit that achieves noise immune operation with composite video signals that provide progressive field display and consequently lack synchronization equalizing pulses. The compensation circuit maintains a sufficient bias level on the sync separator transistor during the vertical blanking interval to prevent premature triggering of the vertical deflection circuit due to noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.