Arithmetic coding compressor for encoding multiple bit values
US5857035A · kind A · utility
31Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 19, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | May 19, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention looks for large regions of white or black pixels. In those regions, it is very likely the next few pixels will continue to be the same all white/black value. The present invention replaces the actual encoding of those pixels with whether or not the multi-bit jump was a success. If the jump was unsuccessful then each of the bits unsuccessfully jumped over is encoded using a predefined location in the probability table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.