Patent Document ID: 5412752
Application ID: 08041235
Patent Flag: 1

Claim One:
1. An apparatus for determining an optimum rule from a set of fuzzy logic rules corresponding to a given output, said fuzzy logic rules having rule terms corresponding to a set of membership functions, the apparatus comprising: means for fuzzifying at least one crisp input signal to a plurality of fuzzified signals in accordance with a corresponding plurality of said membership functions, each of said membership functions including a predetermined linear slope and predetermined fuzzy set parameter data including width, center and membership function type, said fuzzifying means comprising: means for determining a distance of said at least one crisp input signal from said center of each of said membership functions, and means for linearly complementing each of said distances relative to said corresponding width of said membership functions, said complemented distances being output as said fuzzified signals, respectively; means for receiving said at least one fuzzified input signal and for determining a minimum rule term for each of said rules in response to said at least one fuzzified input signal, said determining means successively comparing said minimum rule terms for each of said rules corresponding to said given output to determine a maximum among said minimum rule terms; and means for receiving said minimum rule terms and for identifying said maximum among said minimum rule terms by outputting a maximum rule signal when said maximum among said minimum rule terms has been determined, said maximum among said minimum rule terms corresponding to said optimum rule.