Side pincushion distortion correction circuit
US4101814A · kind A · utility
9Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1977 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | Feb 7, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/835
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A horizontal deflection generator provides scanning current in a deflection winding and a pincushion modulating circuit is coupled to the deflection winding for modulating the horizontal scanning current. A vertical deflection generator and the horizontal deflection generator are coupled by means to the modulating circuit for providing vertical rate signals and nonlinear horizontal rate signals to the modulating circuit for providing a vertical rate distortion correction signal component modulated by the nonlinear horizontal rate signals for reducing the side pincushion distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.