Raster scan color display system and method having improved pin cushion non-linearity correction
US4335333A · kind A · utility
5Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1980 |
| Grant date | Jun 15, 1982 |
| Priority date | — |
| Expiry date | Jan 29, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/2335
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A raster scan color display system for a CRT includes a vertical sweep system wherein a parabolic signal repeating at the horizontal sweep rate is multiplied with a vertical sweep signal corresponding to a linear ramp repeating at a vertical deflection rate. The output is differentiated and capacitively coupled to a wideband voltage drive vertical deflection amplifier to provide pin-cushion non-linearity correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.