Techniques for displaying non-blocking always visible displays and their applications
US7342594B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Aug 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/451
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-blocking always visible display application is provided to copy and save first pixel values corresponding to a first display screen area, blend the copied first pixel values with second pixel values corresponding to a non-blocking always visible display to generate third pixel values, and replace the original first pixel values with the third pixel values to effectuate display of the non-blocking always visible display. In one embodiment, the application further monitors for display operations that impact the first display screen area, and re-blend accordingly. In one embodiment, the re-blending and replacement are advantageously delayed. In another embodiment, the application further intercepts and causes cursor events to be handled properly, based at least in part on a current blending bias between the non-blocking always visible display, and the underlying display windows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.