Data compression method and system
US5604495A · kind A · utility
10Cited by
18References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Apr 21, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/46
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A lossless type data compression method employing a dictionary system is suitable for character generator of a game machine and so forth. A working data strings are generated from an original data stream. Two sequential working data strings are combined to form a combined string. A dictionary is generated by registering the combined strings having occurrence frequency higher than a given value with a dictionary number. The combined strings in the data stream are replaced with the dictionary numbers corresponding to the combined strings in the dictionary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.