The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1994
Filed:
Feb. 25, 1993
Herbert Eichfeld, Munich, DE;
Thomas Kuenemund, Munich, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A fuzzy logic controller is composed of a fuzzification circuit (FUZ), a rule decoder (RDEC), a rule evaluation circuit (RA), an inference circuit (INF), a defuzzification circuit (DFUZ) and a sequencer (CTRL). Numbers (NA) for linguistic values of the output variables together with selection signals (SM) for the definition of the input variables affected by the respective rule formed in the rule decoder and are supplied to the rule evaluation circuit in addition to the values (ME) of the affiliation functions for the linguistic values of the input variables. A weighting signal (G) is generated in the rule evaluation circuit for every linguistic value of the output variables. The advantages obtainable are the high processing speed, the low requirement for chip area, the variable rule format and the selection possibility of different operation modes in the rule evaluation circuit, the inference circuit and the defuzzification circuit.