Flare compensation circuit for television
US4302777A · kind A · utility
7Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | May 15, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/81
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flare or scattered light compensation circuit for television, wherein a controllable signal difference amplifier is present to a first input of which a picture signal, affected by flare or scattered light, is applied, a compensation signal obtained by signal integration being applied to a second input. The gain factor of the amplifier is controlled substantially proportional to the quotient of the peak-peak value of the picture signal and of the difference value of the said peak-peak value and the value of the compensation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.