Color television CRT beam current correction circuit
US4200882A · kind A · utility
10Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Jul 28, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Multi-gun color television display apparatus having for each gun an identical beam current reference level control system wherein the relative position of a reference level in the video signal and a setting voltage of the electron guns are periodically shifted for obtaining, for the control system outside the measuring periods, a coincidence of the reference level in the video signal and the cut-off point of each of the electron guns for a proper color rendition at a low brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.