Data conversion
US4937574A · kind A · utility
13Cited by
7References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1987 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Dec 30, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a method for converting n data input bits to n data output bits, groups of m data input bits from an input data buffer (10) are used as address input for a plurality of identical substitution look-up tables (20 to 27). Each look-up table (20 to 27) has a plurality of groups of m data output bits stored at a plurality of locations in the table. The output bits held at each location within the look-up tables (20 to 27) are dependent on a control word taken from a control word register (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.