Method for varying initial value in gray scale modification
US6747669B1 · kind B1 · utility
6Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Jan 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0224
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An error diffusing circuit modifies input video data signals representative of the gray levels of 8-bit gradation to output video data signals representative of the gray levels of 6-bit gradation, and an initial value generator produces an initial value for each of the first video data signals on each line of a frame, wherein the initial value generator varies the initial value depending upon the combination of a frame number, a line number and the color so that any pattern is not unintentionally produced on the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.