Raster-order pixel dithering
US7978200B1 · kind B1 · utility
0Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Dec 28, 2006 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Jan 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Stochastic dithering may be used to reduce the size of the frame buffer and the complexity of the D/A Converters (DACs) in the drive circuitry that are used in a video display system. Hardware for stochastic dithering can be simplified when pixel data is presented in raster order. The hardware adds algebraic noise to the image to be dithered, and thresholds the result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.