Video signal compression apparatus for horizontal compression of a video signal
US5715010A · kind A · utility
2Cited by
19References
1Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 2, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Oct 2, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S348/913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video signal compression apparatus extracts a specific value written in a read only memory at every system clock pulse. The specific value can be varied at every clock pulse. Therefore, for example, only the center part of a picture can be horizontally compressed. A FIFO memory may be used. It is possible to select a mode with a fixed compression ratio or a mode in which a compression ratio varies at every clock pulse. Further, the fixed compression ratio can be set from the outside. Display position of the picture can also be changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.