Method of and apparatus for utilizing video buffer in a multi-purpose fashion to extend the video buffer to multiple windows
US7777814B2 · kind B2 · utility
6Cited by
4References
23Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 20, 2009 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/125
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention includes a method and device that allows efficient mixing of multiple video images with a graphics screen while utilizing only one video buffer. The present invention partitions the sole video buffer, pre-scales the plurality of video images and inserts them into the partitioned video buffer in a predetermined range of buffer addresses. The present invention mixes the partitioned video including the pre-scaled video images with the graphics screen to produce a video display including both a video screen and a graphics screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.