Vehicle electronic key system

Details Vehicle electronic key system Vehicle electronic key system

2007-07-17

2007-07-17

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular system function

C340S005100, C340S005200, C340S005300, C340S005610, C340S426220, C340S427000, C340S539110, C340S870030, C307S010200, C307S010500, C455S063100, C455S067110

Reexamination Certificate

active

10529104

ABSTRACT:
A vehicle electronic key system includes a control device mounted on a vehicle and an electronic key for transmitting a response signal in response to reception of a request signal from the control device. The control device includes means for outputting a request signal to the electronic key in response to the ON operation of a main switch of the vehicle (request signal generation means, a transmission circuit, and a transmission antenna), means for detecting a response signal from the electronic key (a reception circuit and response signal matching means), and means for performing an alarm output (monitoring means, a third drive circuit, and an alarm lamp) when no response signal is detected in spite of the output of the request signal.

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