Power saving palette look-up table for graphics controller
US7154487B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jul 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0285
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for generating compensation pixel data for pixel data having adjacent values. The compensation pixel data is the pixel data adjusted by a value in order to perform an effect with the pixel data. The system has a comparator for determining whether the pixel data varies between adjacent values. Furthermore, the system includes a look-up table in communication with the comparator. The look-up table replaces the subsequent value of the pixel data with the compensation pixel data only when the preceding value of the pixel data is different than the subsequent value thereby reducing the number of look-ups for the compensation pixel data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.