| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active tag with a built-in battery in which battery consumption is suppressed when the active tag is not used for a long period. <P>SOLUTION: An active tag 2000 includes: a switch 280 inserted into a wiring path L1 between a battery 250 and an LF receiving circuit 220; a socket 270 electrically connected to an external power source; and a switch control circuit 260 for controlling opening/closing of the switch 280 by power supplied from the external power source via the socket 270. <P>COPYRIGHT: (C)2012,JPO&INPIT |
