Methods of and apparatus for displaying windows on a display
US9996363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a compositing window system, as a respective version of the window for an application is written into a window buffer, a corresponding set of per tile signatures indicative of the content of each respective tile in the window buffer is generated and stored. When an updated version of the window is stored into a window buffer, the set of signature values for the updated version is compared to the set of signature values for the previous version in the window buffer to determine which tiles' content has changed. The set of tiles found to have changed is used to generate a set of regions for a window compositor to write to a window in a display frame buffer to update the window in the display frame buffer to display the new version of the window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.