Comb filter for television signals having adaptive features
US4050084A · kind A · utility
58Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1976 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Jul 14, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A comb filter system for the separation of the luminance and chrominance components of an NTSC color television signal which analyzes the video signal on the television lines and detects luminance or color transistions in the vertical direction, and in response to the presence of one or both of such transitions, automatically either modifies or removes the comb filter, to minimize transient distortions in the reconstructed television picture. The system can be implemented in either the analog domain or the digital domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.