Technique for optimally encoding digitally encoded video signals
US4320416A · kind A · utility
4Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Oct 15, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N11/042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An encoder for digital video signals uses averages of pairs of transmitted samples to reconstruct untransmitted samples. The pair selected for reconstruction is selected in accordance with the criteria of least change around the untransmitted sample. If a plurality of averages are tied for least change, a priority order is used to select which average to use. For color video the priority order is preferably the horizontal, diagonal and vertical averages. A different order can be used for monochrome signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.