| 摘要 |
<P>PROBLEM TO BE SOLVED: To simply provide a non-contact communication system that allows to execute stable communications corresponding to a communication distance between an IC tag and a reader/writer, a non-contact communication method, and an image forming device using the non-contact communication system. <P>SOLUTION: The non-contact communication system is provided with the reader/writer 20, which executes non-contact communications by a prescribed communication carrier wave, the IC tag 10, whose resonance frequency is set to a first resonance frequency R<SB>1</SB>higher than a transmission frequency of the reader/writer 20, and a resonance-frequency reduction means that reduces the resonance frequency of the IC tag 10 from the first resonance frequency R<SB>1</SB>to a second resonance frequency R<SB>2</SB>almost equal to the transmission frequency of the reader/writer 20. <P>COPYRIGHT: (C)2008,JPO&INPIT |
