Patent ID: 8194809

Claim:
A diversity receiver, comprising: a plurality of antennas which receives radio signals; a plurality of receivers which receives the radio signals respectively, which are captured by the plurality of antennas; a switching controller which switches to select all of the plural receivers and to select any one of the plural receivers in accordance with a switching frequency which indicates a ratio establishing how often operation of a diversity reception is initiated and maintained per unit time during a reception operation so as to synthesize respective output signals of the plural receivers with each other to output a synthesized signal in a case where all of the plural receivers are selected during said diversity reception; a demodulator which demodulates one output signal or all of output signals from the plural receivers selected by the switching controller; a bit error rate calculator which calculates a bit error rate based upon a demodulation result of the demodulator; and a switching frequency calculator which varies the switching frequency between 0% and 100% in response to the bit error rate calculated by the bit error rate calculator, wherein the switching frequency calculator includes a random number generator, and calculates an initiation and the switching frequency of the diversity reception in response to a random number generated by the random number generator, wherein the switching controller controls a switching operation in accordance with the initiation and the switching frequency of the diversity reception calculated by the switching frequency calculator.