Method and apparatus for optimal NTSC rejection filtering and transmitter and receiver comprising same
US5572249A · kind A · utility
28Cited by
14References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1994 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jul 7, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention comprises an optimal causal, monic (first coefficient of filter is 1) NTSC rejection filter for use at an ATV receiver which is designed to optimally process the interference caused by an NTSC co-channel signal while keeping the noise enhancement to a desirably low value. In other words, the design method gives the filter with the BEST NTSC rejection capability for a given noise enhancement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.