Apparatus for correcting mis-convergence and geometric distortion in deflection yoke using variable resistance
US6501238B1 · kind B1 · utility
1Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/5687
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a deflection yoke, and in particular, to an apparatus for correcting a mis-convergence and geometric distortion in a deflection yoke using a variable resistance, proving a more convenient way to adjust VCR by adjusting the current flowing in a comma-free coil using a variable resistance, instead of attaching a magnetic member as in the conventional method for the products associated with VCR (Vertial Green) properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.