Video-sync locked horizontal size regulation in projection light valve system
US5142366A · kind A · utility
19Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Dec 18, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/7408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The horizontal size of the raster in a light valve projection system is determined by the ratio by which a RF carrier is divided, wherein the frequency of the RF carrier is locked to a synchronization signal derived from the horizontal synchronization pulses of an externally-supplied video signal to be displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.