Method for controlling digital dynamic convergence and system thereof
US6437522B1 · kind B1 · utility
2Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2001 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | May 25, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/68
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention and method enable the astigmatism correction at each crossing point of a cross hatch pattern, thereby making high-resolution display possible. An appropriate voltage or current for controlling the magnetic field adjusting coils are generated from the correction data stored in a memory. The voltage or current generated are then applied to two poles, four poles or six poles during scanning of the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.