Patent ID: 6990334

Claim:
A wireless acoustic receiving device, comprising: wireless transmission means for transmitting a service request signal to request an acoustic signal desired by a user; wireless receiving means for receiving a transmission signal containing the acoustic signal transmitted in response to the service request signal; demodulation/decoding means for applying demodulation and/or decoding processing to the signal received by wireless receiving means and restoring the received signal to an acoustic signal; and electro-acoustic transform means for transforming the acoustic signal restored by the demodulation/decoding means to a sound wave for output to the user, wherein the demodulation/decoding means comprises: decoding means for separating main information and sub information from the signal received by the wireless receiving means; feature information restoring means for restoring feature information from the sub information; information restoring means for conducting the restoration processing of the main information using the feature information restored by the feature information restoring means; and information source decoding means for restoring the acoustic signal upon decoding an output signal of the information restoring means.