Patent ID: 7400867

Claim:
A radio broadcast receiver for performing diversity reception of a radio broadcast and demodulating a diversity-received signal of the broadcast, the receiver comprising: a first antenna; a second antenna; a phase difference detector for detecting a difference in phase between a first reception signal received by the first antenna and a second reception signal received by the second antenna; a first diversity reception section for aligning the first reception signal and the second reception signal in phase and combining said first and second signals into a diversity-received signal; a second diversity reception section for selecting as the diversity-received signal, one reception signal in a better reception condition from the first and second reception signals; a diversity operation controller for activating the first diversity reception section when the phase difference detected by the phase difference detector is larger than a predetermined level, and for activating the second diversity reception section when the phase difference detected by the phase difference detector is not larger than the predetermined level; and a demodulator for demodulating the diversity-received signal supplied from the first diversity reception section when the first diversity reception section is activated by the diversity operation controller, and for demodulating the diversity-received signal supplied from the second diversity reception section when the second diversity reception section is activated by the diversity operation controller.