| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure compatibility with a different communication system, to read ID data in case of a fault and to improve security with a simple mechanism for an RFID system. <P>SOLUTION: RFID equipment (tag) is provided with a plurality of RFID tag parts compatible with the same or different protocols and command data are communicated among the respective RFID tag parts. Thus, compatibility with different frequencies or communication systems can be ensured, the ID data can be read in a failure, and the security is improved by correctly recognizing the RFID equipment only after recognizing a plurality of IDs by the simple mechanism. <P>COPYRIGHT: (C)2008,JPO&INPIT |
