| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional resonance tag in which resonance is not made when electric waves are not applied to a flat surface of the resonance tag to make it impossible to detect passage of a subject to control, and to securely detect passage of the subject to control through a gate by composing it to transmit modulated signals by receiving high frequency signals from a high frequency oscillator regardless of conditions of the subject to control in the gate. <P>SOLUTION: This resonance tag comprises three resonance tag pieces provided with LCR circuits having the same resonance frequencies. Two of the resonance tag pieces are connected to the other resonance tag piece through folds on two adjacent sides of it. The respective resonance tag pieces are attached to three surfaces of the subject to control in the form of a box. <P>COPYRIGHT: (C)2003,JPO |
