Television picture centering control
US4035841A · kind A · utility
5Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1975 |
| Grant date | Jul 12, 1977 |
| Priority date | — |
| Expiry date | Sep 26, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A control circuit is provided for centering a display on a cathode ray tube by manual adjustment. A reference signal is received corresponding to a fixed point on the display. A shift circuit provides a shifted synchronizing signal, having a shift that is variable, to place the fixed point at a desired location on the cathode ray tube. The shift may be either an advance or a delay of the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.