| 摘要 |
PROBLEM TO BE SOLVED: To shorten a time required for channel search or the like in a reception circuit. SOLUTION: The reception circuit 110 has a quadrature mixer (a complex mixer) CMIX, an image suppression circuit 150 (e.g., a complex bandpass filter), and a controller 180. The controller 180 controls, during a first period, the reception circuit 110 so as to execute image suppression by the image suppression circuit 150 with either a first signal of a frequency higher than a first frequency value included in a received signal only by an intermediate frequency value or a second signal of a frequency lower than the first frequency value included in the received signal only by the intermediate frequency value as an image signal, and controls, during a second period, the reception circuit 110 so as to execute image suppression by the image suppression circuit 150 with the other of either the first signal or the second signal as an image signal. COPYRIGHT: (C)2011,JPO&INPIT
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