Method and apparatus for display image rotation
US5854641A · kind A · utility
22Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1996 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Sep 27, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0492
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for rotating images on a computer system is disclosed. The system includes a processor for accessing an image frame buffer using a set of CPU addresses, a memory for storing the frame buffer, a controller for directing the pixel data of the frame buffer to a display device using a set of controller addresses. The two sets of addresses are not necessarily the same. In fact, numerous advantages could be had from manipulating those two sets of addresses resulting in image rotation operations for the display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.