Combined video AGC and digitizing circuit
US4628362A · kind A · utility
38Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | May 2, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automatic gain control (AGC) and digitizing circuit, particularly suitable for use in digital video image processing and/or display systems, is disclosed. This circuit advantageously defines an active window within an image area and operates the AGC only on the active window in order to ensure that the active window is always displayed, on a remote monitor, with proper brightness and contrast. The active window can be located anywhere within the image area and can be set to encompass an area extending from only a single picture element to the entire image area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.