| 摘要 |
PROBLEM TO BE SOLVED: To provide a card nullifying device for a smart card system and its method, by which a car antitheft function and car protective performance are improved. SOLUTION: The card nullifying device for the smart card system and its method are constituted while being provided with a controlling machine composed of an indoor sensing antenna transmitting and receiving a signal with a smart card, an indoor-sensing antenna driving section driving the indoor sensing antenna and a CPU transmitting and receiving a control signal to the indoor-sensing antenna driving section and the smart card. |
