Adaptive filter for processing video signals
US6504579B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1998 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adaptive filter is disclosed comprising a source (1) for a television signal (f), a delay device (2) for forming delay signals (v0 to v5) from the television signal, a filter combination (3) comprising at least one comb-up device and one comb-down device (3.4, 3.1) for forming filter signals (s1 to s4) from the delay signals, a mixer (5), a decision device (4) for analyzing the delay signals (v0 to v5), and a computing matrix (7) for forming weighting factors (g) for the mixer (5). A manually controllable or data-controllable setting device (8) is coupled to the decision device (4) for changing the mixing behavior in the mixer (5), which is dependent on a predetermined algorithm in the decision device (4) and/or the computing matrix (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.