Method and apparatus for providing multiple bit depth windows
US5388201A · kind A · utility
85Cited by
18References
16Claims
0Family size
Inventors
Key dates
| Filing date | Aug 11, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Aug 11, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for allocating memory space in main memory of an associated processor for a plurality of windows. The depth in each window is independent of other windows on the display and can be changed dynamically. An application program is not required to know the frame buffer depth in advance. When a window is created, a default depth (e.g., two bits per pixel) is defined for the window. When a program writes to the window, drawing commands are interpreted and the appropriate depth is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.