Video frame grabber comprising analog video signals analysis system
US5717469A · kind A · utility
27Cited by
5References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0084
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a video frame grabber for digitizing analog video signals which have a pure analog video signal component and a synchronisation signal component, the synchronisation signals are digitized along with the pure analog video signals. Video gain and offset, sync gain, and sync threshold can be adjusted electronically. A variable time delay can be imposed on the sampling clock signals and on horizontal reference signals. Optimal values can be determined for the various parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.