Circuit and method for determining membership in a set during a fuzzy logic operation
US5687289A · kind A · utility
1Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1994 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Dec 16, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit (14) and method which determine a degree of membership of an input in a membership set during a fuzzy logic operation. The degree of membership is calculated by a single "MEM" software instruction. The MEM instruction determines whether the system input has a degree of membership of zero, of a saturation level, or of some value in between. If a membership function has a boundary with an infinite slope, the slope value is set equal to zero and the degree of membership is then set equal to a saturation value for those input values corresponding to the infinite slope boundary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.