| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio receiver which prevents an increase in production cost and a deterioration in receiving characteristics and can set the frequency of a local oscillation signal to be used for frequency conversion of an input signal. SOLUTION: The radio receiver is provided with: a plurality of receiving parts T for receiving a plurality of radio signals respectively and outputting reception signals; a received signal switching part SIGSWU for branching and selecting the reception signals received from the respective receiving parts T and outputting the same number of reception signals as output signals; a plurality of mixers M arranged in accordance with the output signals to generate an output signal by multiplying the reception signal by a local oscillation signal; and a plurality of local oscillation signal switching circuits OSCSW arranged in accordance with the mixers M to select any of a plurality of local oscillation circuits OSC included inside and feed the power, thereby selectively outputting any of a plurality of local oscillation signals output from the plurality of local oscillation circuits OSC to the mixers M. COPYRIGHT: (C)2007,JPO&INPIT
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