| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio receiver capable of using a single antenna for both of a digital receiving part and an analog receiving part and capable of utilizing the time signal detection of analog broadcasting. SOLUTION: The radio receiver provided with the digital receiving part and the analog receiving part is provided with: a control part for acquiring matching element setting information which is previously stored in a memory in order to change the constitution of a matching circuit in each channel in the case of changing the channel by a channel change request, and outputting a matching element control signal for changing the constitution of the matching circuit on the basis of the matching element setting information; and a matching part including a switch for switching the connection of a plurality of passive elements constituting the matching circuit on the basis of the matching element control signal in order to perform matching between antenna side impedance and the receiving part side impedance of a receiving side constituted of the digital receiving part and the analog receiving part. COPYRIGHT: (C)2008,JPO&INPIT
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