Communications: electrical – Land vehicle alarms or indicators
Patent
1997-10-22
1999-08-31
Hofsass, Jeffery A.
Communications: electrical
Land vehicle alarms or indicators
340426, 340539, 34082531, 34082534, 307 103, 307 104, 307 105, B60Q 100
Patent
active
059459069
ABSTRACT:
A key for a vehicle has a push button, a first transmitter-receiver circuit for transmitting a first ID signal stored in a first memory in response to an ID request signal, and a second transmitter-receiver circuit for transmitting a second ID signal in response to a pressing operation of the push button. An in-car antitheft system has a check circuit for comparing the received first ID signal with a registered ID, and an engine control circuit for inhibiting the operation of an engine if the received ID does not correspond to the registered ID. When the button is pressed for a duration longer than a predetermined length, the second transmitter-receiver circuit of the key transmits the first ID signal in place of the first transmitter-receiver circuit.
REFERENCES:
patent: 5650774 (1997-07-01), Drori
Hofsass Jeffery A.
Nissan Motor Co,. Ltd.
Pope Daryl C.
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