Automatic level control (ALC) for video signals
US7283157B2 · kind B2 · utility
0Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2004 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | May 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and systems for automatic level control (ALC) in a video signal processing system. The new ALC of the invention takes into account the gain applied to the video signal, such as that provided by an associated automatic gain control (AGC). Methods and systems of the invention use present gain control values and previous gain control values in quickly converging to a new offset control value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.