Patent ID: 8670677

Claim:
A remote control signal receiving circuit receiving an output signal that is outputted from a light receiving element receiving a remote control signal so as to correspond to the remote control signal, the receiving circuit comprising: a reference clock generation circuit generating a reference clock signal; a timing signal generation circuit generating a timing signal that alternates between a first level and a second level, the timing signal having a lower frequency than the reference clock signal, and the first level being different from the second level; a power supply circuit supplying a power to the light receiving element when the timing signal is at the first level and halting the supplying of the power to the light receiving element when the timing signal is at the second level, wherein the light receiving element intermittently operates corresponding to the timing signal and the power supply circuit is contained in a housing of the remote control signal receiving circuit; a sampling signal generation circuit generating a sampling signal when the timing signal is at the first level; a sampling circuit sampling the output signal from the light receiving element in response to the sampling signal; and a detection circuit detecting the output signal from the light receiving element that is sampled by the sampling circuit.