Data processing system for evaluating fuzzy logic rules and method therefor
US5787407A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1997 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Nov 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N7/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system (10) selectively weights a fuzzy logic rule in response to a single "REVW" software instruction. In response to the REVW instruction, the data processing system (10) fetches a set of fuzzy inputs associated with the fuzzy logic rule, and determines a minimum fuzzy input from the set. The data processing system (10) then selectively weights the minimum fuzzy input to provide a fuzzy output of the fuzzy logic rule, by multiplying the minimum fuzzy input by a corresponding weight. In one embodiment, a carry bit in a condition code register (60) determines whether the fuzzy logic rule is to be weighted. In response to the single REVW instruction, the data processing system (10) further performs this selective fuzzy rule weighting operation for all rules in a fuzzy rule base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.