Regenerating circuit of synchronizing signals for standard video signals
US5402243A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1992 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A synchronizing signal regenerating circuit for standard video signals in a digital video signal processing system includes a circuit for regenerating stable horizontal synchronizing signals, a circuit for generating double horizontal synchronizing signals, a circuit for generating horizontal synchronizing signals, a circuit for generating vertical synchronizing signals and an output circuit. The circuit for regenerating stable horizontal synchronizing signals regenerates the horizontal synchronizing signals in response to quadruple burst signals, and the circuit for generating double horizontal synchronizing signals is connected to the output terminal of the circuit for regenerating stable horizontal synchronizing signals. The circuit for generating horizontal synchronizing signals is connected to an output terminal of the circuit for regenerating stable horizontal synchronizing signals. The circuit for generating vertical synchronizing signals generates those signals from the input vertical synchronizing signals. The synchronizing signal generating circuit of the present invention can be incorporated into digital video signal processing systems, making it possible to eliminate a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.