Adaptive multiple dictionary data compression
US5870036A · kind A · utility
126Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1995 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Feb 24, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for compressing and decompressing data using a plurality of data compression mechanisms. Representative samples of each block of data are tested to select an appropriate one of the data compression mechanisms to apply to the block. The block is then compressed using the selected one of the mechanisms and the compressed block is provided with an identifier of the selected mechanism. For decompression, the identifier is examined to select an appropriate one of the data decompression mechanisms to apply to the block. The block is then decompressed using the selected one of the mechanisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.