Offset level detection method for auto color gain control of analog video signals
US6671001B2 · kind B2 · utility
2Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/73
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An offset level detection method for auto color gain control of analog video signals, which is used to find an optimal offset level for determining the input of the auto color gain control. The method includes at least the following steps: First, a lower limit of the min of analog video signals is determined. The position of the lower limit of the min is set as a first min. An upper limit of the min is searched backwards from the first min. The position of the upper limit of the min is set as a second min. Finally, the first min and the second min are averaged to obtain an optimal offset level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.