Patent ID: 8335287

Claim:
A communication apparatus comprising: a signal detector configured to execute processing to detect incoming information from a signal received wirelessly; wherein the signal detector includes: a wave detector configured to accept as input an incoming signal wherein incoming information has been modulated onto a carrier signal, to analyze the envelope variation of the incoming signal, and to generate a detection signal containing the incoming information, an equalizer configured to execute correction processing with respect to the detection signal and to output a corrected detection signal a detector configured to accept as input the corrected detection signal generated by the equalizer, and to detect incoming information therefrom; and a level information detector configured to extract, from the incoming signal, transmit antenna level information indicating the voltage of the transmit antenna as measured at the data transmitting apparatus, and then output the extracted antenna level information to the equalizer; wherein the equalizer determines the optimal equalization characteristics according to the antenna level information, and outputs an equalization result in accordance with the optimal equalization characteristics.