System and method for simultaneous flicker filtering and overscan compensation
US5990965A · kind A · utility
14Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Sep 29, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S348/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus simultaneously flicker filters and vertically contracts a plurality of original lines to form compensated lines. The device uses a coefficient calculator and a line processor, both controlled by a controller. The coefficient calculator provides compensation coefficients to the line processor. The line processor forms weighted sums of the original lines, with the weightings determined by the compensation coefficients. The compensation coefficients are chosen to simultaneously implement flicker filtering and vertical contraction. Thus, the weighted sums are the compensated lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.