U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Fuzzy inference system having a dominant rule detection unit

Patent 5179625 Issued on January 12, 1993. Estimated Expiration Date: Icon_subject May 5, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Inventor

Assignee

Application

No. 880487 filed on 05/05/1992

US Classes:

706/1, FUZZY LOGIC HARDWARE706/10, PLURAL PROCESSING SYSTEMS706/46, Knowledge representation and reasoning technique706/52, Reasoning under uncertainty (e.g., fuzzy logic)706/900FUZZY LOGIC

Examiners

Primary: MacDonald, Allen R.

Attorney, Agent or Firm

International Class

G05B 011/01

Foreign Application Priority Data

1988-09-26 JP

Abstract

A fuzzy inference system includes a rule processing means for receiving an input signal and inferencing the input signal in accordance with a plurality of fuzzy rules to generate inferenced data (B1, B2, B3, A1, A2, A3), a defuzzify means (19, 20, 119, 120, M1, 201, 203) for synthesizing and defuzzifying the inferenced data to generate a decided value (eO), and a dominant rule means (21, 121, 210) receiving the inferenced data and decided value for finding a dominant rule of the plurality of fuzzy rules which has the largest contribution degree to the decided value.

Other References

  • King, P. J. and Mamdani, E. H., "The Application of Fuzzy Control Systems to Industrial Processes", Automatica, vol. 13, pp. 235-242, 1977
  • Yamakawa, Takeshi, "An Approach to a Fuzzy Computer Hardware System", Proc. 2nd Int. Conf. on Artificial Intelligence, Marseilles, France, Dec. 1-5, 198
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