Anti-flickering for video display based on pixel luminance
US6563511B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1999 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Mar 5, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a method and apparatus to generate an anti-flickered pixel from a source pixel having a source pixel value in a display memory. The apparatus comprises a plurality of storage elements, a filter, a comparator, and an output selector. The plurality of storage elements store a sequence of pixels in the display memory which includes the source pixel. The filter is coupled to the plurality of storage elements to filter the sequence of pixels. The filter generates a filtered pixel corresponding to the source pixel. The comparator is coupled to the plurality of storage elements to compare the source pixel value with a threshold value. The comparator generates a comparison result. The output selector is coupled to the filter and the storage elements to select one of the source and filtered pixels according to the comparison result. The selected one of the source and filtered pixels is the anti-flickered pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.