| 摘要 |
The object of the present invention is to provide a radio communication apparatus including a receiving circuit block including a received signal strength signal circuit, a demodulating circuit block including a noise level determination circuit, an identifying signal determination circuit block including an identifying signal processing circuit and an identifying signal determination circuit, an audio circuit block, a transmitting circuit, an intermittent time control circuit, a timer circuit, and a power supply control circuit. According to a reception state, the power supply control circuit sequentially supplies power only to a required circuit(s) among the receiving circuit block, the demodulating circuit block, and the identifying signal determination circuit block. Meanwhile, an off-time of communication set by a timer circuit according to communication frequency is varied by the intermittent time control circuit.
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