| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio tag reader/writer of simple composition which surely establishes information communication with only a target radio tag which is a communication object. <P>SOLUTION: A ferrite core 55 for changing the resonance frequency f of an antenna part 64 of a target radio tag circuit 24a, which is preliminarily fixed to locate at a position for conducting communication, is arranged adjacent to the antenna part 64. Consequently, erroneous communication with a prior-to-cut tag tape 26 accommodated in the cartridge 28 of a radio tag reader/writer 12 or the like, a radio tag circuit 24a to which writing is completed and the like is adequately prevented by the communication with the radio tag circuit 24a with the resonance frequency f<SB>a</SB>changed by the ferrite core 55. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
