| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely prevent unauthorized reuse of an unnecessary wireless tag and leakage of information. <P>SOLUTION: A wireless tag recognition device 2 is provided with a breaking command switch 4 to issue a command to break the wireless tag. On condition that the breaking command switch 4 has been operated, a breaking radio wave with an electric field intensity which causes the wireless tag to generate electric power of such a level that an electronic circuit incorporated in the wireless tag is broken is transmitted from an antenna 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
