1992-12-21
1995-03-07
MacDonald, Allen R.
395900, G06G 712
Patent
active
053965795
ABSTRACT:
A membership function generator including a maximum value arithmetic circuit for selecting a maximum voltage of a plurality of first input voltages to output the selected maximum voltage and a minimum value arithmetic circuit for selecting a minimum voltage of a plurality of second input voltages to output the selected minimum voltage. The outputs of the maximum and minimum value arithmetic circuits are input to a differential amplifier circuit. The output of the differential amplifier circuit is used as a membership function. Either at least one of the first input voltage or one of the second input voltages forms the basis of an inference and the remaining input voltages are set to a predetermined reference voltage.
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Sasaki et al., "A Fuzzy Logic Function Generator (FLUG) Implemented with Current Mode CMOS Circuits", Proc of 21st Int'l Symposium on Multiple Valued Logic, May 26-29, 1991, pp. 356-362.
Koji Yukichi
Oh Masanari
MacDonald Allen R.
Rohm & Co., Ltd.
Shapiro Stuart B.
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