Multi-rate real-time players
US6909836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2001 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Jul 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/415
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of optimizing the scheduling of the drawing of graphical elements of a multi-player display (102) in an image processing environment. Each player (801 to 804) is capable of operating asynchronously and deriving its source from a different video, film or other image format. Draw commands from each player are combined into short sequences known as graphics requests (1002 to 1004). A scheduler (821) selects the next graphics request for rendering by a graphics thread (831) based on the requirement to minimize state changes within the graphics card (208) while meeting the due time requirement of the graphics request, that is dependent upon the frame rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.