Patent ID: 7630460

Claim:
An impulse radio communication device, comprising a wave detector for envelope-detecting a received signal and generating a detected signal; a switching section for selecting any one of the received signal and the detected signal in accordance with an external control signal and outputting the selected signal as a demodulation target signal; a reference waveform generating section synchronized with a phase timing of the demodulation target signal and generating a reference waveform signal having a different waveform in accordance with the external control signal; a demodulator for receiving input of the demodulation target signal and generating a demodulated signal in accordance with the reference waveform signal; and a decoding section for receiving input of the demodulated signal and decoding received data from the received signal, wherein the demodulation target signal and the reference waveform signal are switched simultaneously in accordance with a receiving and synchronizing state, and the received signal is synchronized.