Color picture reproducing device
US4285008A · kind A · utility
9Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Nov 15, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/72
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A capacitor is provided between each cathode of a three-electron-gun color picture tube with three first grids earthed and each transistor amplifier for amplifying each primary color signal. The charging voltage across each capacitor is adjusted by a variable resistor provided corresponding to each capacitor. A variable DC voltage is produced at the sliding terminal of each variable resistor. A switch is provided between the sliding terminal and each cathode, which is turned on during the flyback period and the scanning period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.