Surrounding light judging method and video compensation control apparatus using the same
US6822695B2 · kind B2 · utility
4Cited by
5References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Oct 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A surrounding light judging method and a video compensation control apparatus which are capable of securing an optimum quality of picture by detecting a color signal near a video displaying instrument, judging a lighting environment from the detected color signal, and automatically correcting a video data in accordance with the judged lighting environment and a variation in the lighting environment. The method includes the steps of detecting a first color component and a second color component from a surrounding light, and judging a kinds of the light using the first and second color components
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.