RADIO TAG AND RADIO TAG READER/WRITER

摘要

PROBLEM TO BE SOLVED: To provide a radio tag and a radio tag reader/writer for surely writing information only in a target radio tag.

SOLUTION: This radio tag is provided with a first antenna 66 for writing information in a memory circuit 80 in a non-contact state by a first frequency and a second antenna 68 for reading information from the memory circuit 80 in a non-contact state by a second frequency. At the time of executing the writing and reading of information to a radio tag circuit 24a, it is possible to suitably prevent communication from being erroneously executed between a tag tape 26 before cutting stored in a cartridge 28 of a radio tag reader/writer 12 and the radio tag circuit 24 whose writing has been already completed by using their different frequencies.

COPYRIGHT: (C)2005,JPO&NCIPI