| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an on-vehicle device remote control device which is improved in security and enable power saving by transmitting plural kinds of transmit request signals. SOLUTION: This device includes a transmit request means S10 transmitting a transmit request signal, receiving means S12 receiving a send-back signal in response to the transmit request signal, operation control means S20, S32 for controlling the operating condition of an on-vehicle device in response to receive or non-receive of the send-back signal in the receiving means S12, and a portable device for transmitting a send-back signal in response to the transmit request signal. The transmit request means transmits plural kinds of transmit request signals. Thus, when send-back signal agreeing with plural kinds of transmit request signals are obtained, it is possible to accurately confirm that the portable device is fair to the vehicle so as to improve security.</p> |
