Signal generator for a color television transmitting system
US4370673A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1980 |
| Grant date | Jan 25, 1983 |
| Priority date | — |
| Expiry date | Dec 18, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/641
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal generator for a color television transmitting system improves the picture quality when color encoded signals are reproduced in the picture displayed by a conventional color television receiver. The system utilizes a primary color level detector, a color-difference level detector, and a luminance signal producer which outputs a luminance signal in response to the difference between the primary color level signal output from the primary color level detector and a color-difference level signal output from the color-difference level detector. The output luminance signal is then utilized in the transmission of a color television signal so that a conventional color television receiver may display a color picture having an improved quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.