Approximate MPEG decoder with compressed reference frames
US5777677A · kind A · utility
37Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Feb 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for reducing the memory requirements of a decoding subsystem by storing reference frames in compressed form. A reference picture in a sequence is decoded, compressed and stored in memory. When the reference frame is needed for motion compensation, it is decompressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.