Patent ID: 8019297

Claim:
A radio receiver performing a demodulation processing of an FM broadcast signal by a digital signal processing, the radio receiver comprising: a frequency converter that converts the FM broadcast signal into an intermediate frequency signal; an oscillation circuit that oscillates a clock signal; an analog/digital (A/D) converter that digitally samples the intermediate frequency signal by using one of an oscillating frequency of the clock signal, a multiplying frequency of the clock signal, and a dividing frequency of the clock signal as a sampling frequency; and a digital demodulator that performs a digital demodulation processing by using the intermediate frequency signal digitally sampled, by using the one of the oscillating frequency of the clock signal, the multiplying frequency of the clock signal, and the dividing frequency of the clock signal as an operating frequency, wherein the oscillating frequency is within a predetermined range, the predetermined range is at least one of equal to or more than 37.1 MHz and less than or equal to 37.9 MHz, equal to or more than 54.1 MHz and less than or equal to 64.8 MHz, and equal to or more than 74.2 MHz and less than or equal to 75.8 MHz.