PURPOSE: To simplify the configuration of the majority-decision discriminating circuit to ensure quality of reception information in digital radio communication. ;CONSTITUTION: The circuit is provided with a majority-decision discriminating section 4 using n-sets of register circuits (1) 3-1 to (n) 3-n storing individually incoming reception information repeated for n-times and a ROM circuit having m-sets of address inputs (mn) and writing majority-decision discriminated result information and its validity information and with a threshold level revision circuit 2 revising a discrimination threshold level corresponding to the state in operation. Then an output from each register circuit and an output from the threshold level revision circuit 2 are connected to the address input of the ROM circuit of the majority-decision discrimination section 4 to allow the ROM circuit to immediately output majority-decision discriminated result information and information representing the validity.;COPYRIGHT: (C)1994,JPO&Japio
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