1991-09-18
1993-11-02
Fleming, Michael R.
395 61, 395900, G06F 944, G05B 1300
Patent
active
052590631
ABSTRACT:
A reconfigurable fuzzy cell comprising a digital control programmable gain operation amplifier, an analog-to-digital converter, an electrically erasable PROM, and 8-bit counter and comparator, and supporting logic configured to achieve in real-time fuzzy systems high throughput, grade-of-membership or membership-value conversion of multi-input sensor data. The present invention provides a flexible multiplexing-capable configuration, implemented entirely in hardware, for effectuating S-, Z-, and PI-membership functions or combinations thereof, based upon fuzzy logic level-set theory. A membership value table storing "knowledge-data" for each of S-, Z-, and PI-functions is contained within a nonvolatile memory for storing bits of membership and parametric information in a plurality of address spaces. Based upon parametric and control signals, analog sensor data is digitized and converted into grade-of-membership data. In situ learn and reconfiguration modes of operation are also provided.
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Barr Hardie R.
Downs Robert W.
Fein Edward K.
Fleming Michael R.
Miller Guy M.
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