Adaptive comb filter
US4974065A · kind A · utility
22Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1988 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Sep 29, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/59
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Various filter circuits for processing digitized color television signals are disclosed. Particularly, there are disclosed several embodiments of a luminance/chrominance signal separating filter with which separated, digitized luminance and chrominance are derived with a minimum amount of interference therebetween by determining the direction from a given point in which there is a minimum amount of change in the digitized image signal. Also, there is disclosed a subnyquist sampling filter which operates upon this same principle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.