To provide a non-contact reader/writer capable of easily performing demodulation by eliminating unstable response output from a non-contact information carrier, and fixing the level of a binary signal by the eliminating method.
This non-contact reader/writer has a level detecting part for detecting the receiving level from the non-contact information carrier, and a dummy signal generating part for generating a dummy signal to replacing a signal not reaching a designated level with a dummy signal when the signal level detected by the level detecting part does not reach a designated level. The subsequent H/L level is determined with reference to the level of the dummy signal, and decoding is performed according to the addition result of the received signal and the dummy signal.
HORINOUCHI TAKASHI
YASUI KEIJI
TOKUMASU OSAMU
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