Receiver device, communications device, wireless LAN device, power control method for a receiver device, power control program for a receiver device, and storage medium

摘要

A receiver device in accordance with the present invention (for example, wireless LAN device) includes: a radio frequency signal processor section converting an incoming radio frequency signal to a lower frequency; an RSSI circuit (reception strength sensor section) sensing the signal strength of the radio frequency signal; an intermediate frequency signal processor section converting a signal from the radio frequency signal processor section to an even lower frequency; a digital demodulator section (demodulator section) demodulating a signal from the intermediate frequency signal processor section; and a power control circuit controlling power supply to circuits in the intermediate frequency signal processor section which makes up part of the analog section (AGC circuit, IF mixer circuit, LPF circuit, and amplifier circuit) according to a result of sensing by the RSSI circuit. The structure provides a power saving receiver device.