Method and apparatus for controlling convergence of color signals
US6753932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2001 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jul 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus is disclosed by which correction of convergence and correction of distortion of an image can be performed with a high degree of accuracy. Correction data to be used for correction of position errors of the three colors of red, green and blue obtained by an adjustment apparatus in advance are stored in a storage section. The stored correction data are outputted to a correction waveform outputting section through a control circuit when necessary. The correction waveform outputting section produces correction waveforms based on the correction data inputted thereto and outputs the correction waveforms to a clock signal generation circuit. The clock signal generation circuit generates clocks, and the video data of red, green and blue stored in the memory are read out in response to the clock signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.