Method for ranking membership function values of linguistic input values in a fuzzy logic processor and arrangement for the implementation thereof

摘要

An ordering method for ranking membership function values (Wi) of linguistic input values (LWEi) in a fuzzy logic processor is presented The steps of the method are:PPa) within the time of one processor clock, successively reading the membership function values (Wi) into holding elements (L1 . . . L4) and, after every reading, outputs of the holding elements are through-connected onto outputs (A . . . D) of a selector (SC) as determined by a selection signal (SEL);PP b) comparing the signals at the outputs (A . . . D) of the selector in comparators (C1,C2,C3) and generating control signals (S1 . . . S3) for a unit (SELC) which in turn generates the new selection signal (SEL); andPPc) writing pointers (MAX, MAX', MAX", MIN', MIN) into position registers (P1 . . . P5) with the assistance of the control signals (S1 . . . S3) such that the pointers enable a ranked access to the membership function values (Wi) in the holding elements (L1 . . . L4).