System for reducing the visibility of the noise in television pictures
US4361853A · kind A · utility
60Cited by
5References
5Claims
0Family size
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Key dates
| Filing date | Dec 31, 1979 |
| Grant date | Nov 30, 1982 |
| Priority date | — |
| Expiry date | Dec 31, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television signal noise reduction system employs a movement detector for automatically selecting one of three parallel processing paths, the first of which passes the video signal without modification and the other two of which calculate different weighted averages of the current pixel and surrounding pixels from the current frame and the previous frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.