| 摘要 |
<P>PROBLEM TO BE SOLVED: To make the function of a land mine changeable in a match game. Ž<P>SOLUTION: When an electromagnetic induction reception part 406 receives prescribed invalidation signals from a mobile transmitter-receiver by electromagnetic induction, and when an operation detection part 205 detects that a movement matched with an operation code stored in a storage part 408 is added to an installed type transmitter-receiver 201 itself, a land mine function is invalidated so as not to output blasting signals from the electromagnetic induction transmission part 405 of a processing part 201. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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