Scene synchronization of multiple computer displays
US5956046A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/399
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-display video system for ensuring the proper synchronization of scene switching. Before each display switches to pixel data corresponding to the next scene to be rendered, new pixel data is written into a currently unused bank of frame buffer memory within a corresponding graphics accelerator. When each graphics accelerator in the video system has completed writing the new pixel data to its respective frame buffer, the scene switch may take place. Each graphics accelerator is configured to display an image corresponding to the next scene in response to the indicator output signal indicating that the pixel data updates for all graphics accelerators are complete.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.