Patent Document ID: 5390342
Application ID: 07667931
Patent Flag: 1

Claim One:
1. A receiver, comprising: a plurality of receiving systems connected to a plurality of respective antennas; and a selective switching circuit for carrying out selective switching between output signals from said plurality of receiving systems to output a selected output signal of a receiving system having the most satisfactory receiving state, said selective switching circuit comprising means for discriminating receiving states of respective receiving systems, said discrimination means comprising means for performing a fuzzy inference operation on the basis of a predetermined membership function and the output signals from the respective receiving systems and means for comparing discriminated results with each other with respect to said respective receiving systems, thus to output the selected output signal of the most satisfactory receiving system, wherein said means for performing a fuzzy inference operation comprises a fuzzy inference operation unit for performing a fuzzy inference operation on the basis of field strength detection signals and noise detection signals extracted from said output signals of the respective receiving systems to output an inference result signal, and said means for comparing comprises a comparison unit for comparing with each other said respective inference result signals to output a selected signal for selecting a receiving system having the most satisfactory state.