Patent ID: 8310345
Filing Date: 2012-11-13
Classification: H04B

Abstract:
1. In contactless communication in which a carrier wave transmitted from a first antenna of a host is received via a second antenna of a terminal and the carrier wave is amplitude-modulated on the terminal to transmit data to the host, a receiving apparatus provided on the host for receiving the data, the receiving apparatus comprising: an amplitude demodulation section configured to amplitude-demodulate the carrier wave detected from the first antenna to output a first demodulated output; a phase information extraction section configured to extract phase information included in the carrier wave detected from the first antenna; a phase information demodulation section configured to demodulate the phase information extracted by the phase information extraction section to output a second demodulated output; and a selection section configured to select and output one of the first and second demodulated outputs from the amplitude demodulation section and the phase information demodulation section, wherein the phase information extraction section comprises: