| 摘要 |
PROBLEM TO BE SOLVED: To reduce a noise generated due to phase adjustment or change in weighting. SOLUTION: This circuit is provided with a phase adjusting circuit for adjusting a phase difference between a first signal to be received via a first antenna and a second signal to be received via a second antenna; a weighting control circuit for controlling weighting of the first and second signals; a synthesizing circuit for outputting a synthesized signal obtained by synthesizing the first and second signals to be output from the phase adjusting circuit, on the basis of the weighting; a noise detecting circuit for detecting a noise contained in the composite signal, on the basis of adjustment of the phase difference and change in the weighting; and a noise eliminating circuit for eliminating the noise contained in the composite signal, on the basis of a result of detection of the noise detecting circuit. COPYRIGHT: (C)2007,JPO&INPIT
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