Flexible memory controller for graphics applications
US5367632A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Oct 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/393
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An implementation of a flexible memory controller for a graphics hardware system that supports flexible allocation of frame buffer resources. The buffer selection and steering to the channels of the modification logic are performed by a programmable controller. Furthermore, the controller is capable of performing pixel functions that require multiple frame buffer accesses per pixel. Still further, independent control is provided for read and write sequences. Also, separate control is provided for buffer selection and bus steering. This function is useful for controlling systems where the frame buffer resources are limited. The present invention allows for assigning various buffers alternate functions based on the application's requirements, and may vary on a per window basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.