Textual substitution data compression with finite length search windows
US4906991A · kind A · utility
157Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Apr 29, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3086
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In accordance with the present invention source data is encoded by literal codewords of varying length value, with or without the encoding of copy codewords of varying length and displacement value. Copy codeword encoding is central to textual substitution-style data compression, but the encoding of variable length literals may be employed for other types of data compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.