Fuzzy membership function circuit

Details Fuzzy membership function circuit Fuzzy membership function circuit

1989-03-14

1992-05-12

Smith, Jerry

Boots, shoes, and leggings

364807, G06G 712

Patent

active

051133660

ABSTRACT:
A programmable multi-membership function circuit comprises at least one or preferably two Z function circuits, at least one or preferably two S function circuits, and a fuzzy logic circuit for calculating fuzzy logic from the output of the Z function circuits and the output of the S function circuits. The fuzzy logic circuit comprises a MIN (intersection) circuit and a MAX (union) circuit, or the combination of these circuits.

REFERENCES:
patent: 4694418 (1987-09-01), Ueno et al.
patent: 4716540 (1987-12-01), Yamakawa
patent: 4860243 (1989-08-01), Ueno et al.
English translation of I/O Editorial Staff M. N. "Exploring Possibility of Fuzzy Logic IC Fabricated by Trial", I/O vol. 10, No. 4, Apr. 1985, pp. 305-311.
J. van Amerongen, H. R. van Nauta Lemke and J. L. T. van der Veen, "An Autopilot for Ships Designed with Fuzzy Sets", Digital Computer Applications to Process Control (edited by van Nauta Lemke) North Holland, pp. 479-487 (1977).
Takeshi Yamakawa, "High Speed Fuzzy Controller Hardware System", Proc. 2nd Fuzzy System Symposium, Japan, Jun. 16-18, pp. 122-130 (1986).
Denki Kankei Gakkai Kyushu-Shibu Rengo Taikai Koen Rorburshu (P apers for Lecture on Oct. 31 and Nov. 1, 1985 including paper of: 435 Takeshi Yamakawa and Tsutomu Miki "Synthesis of Programmable Membership Function Circuits" at p. 219, 436 Takeshi Yamakawa, Tsutomu Miki and Hideyuki Kabuo "Trial Fabrication of Programmable Membership Function Circuits (PMF) in Current Mode" at p. 220 and 643 Yuji Shirni et al. "Configuration Method for Membership Function of Fuzzy Logic by Bounded-Difference", p. 357.
Takeshi Yamakawa and Hideyuki Kabuo, "Synthesis of Membership Function Circuits in Current Mode and Its Implementation in the p-MOS Technology", Proc. 2nd Fuzzy System Symposium, Japan, Jun. 16-18, pp. 115-121 (1986).
Yuji Shirni, Fumio Ueno and Takahiro Inoue, "Configuration of Fuzzy Multi Membership Function Circuits", Trans. of IEEE of Japan, vol. J69-L, No. 7, pp. 933-935 (Jul. 1986).

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