Vehicle theft prevention system

Details Vehicle theft prevention system Vehicle theft prevention system

1975-11-17

1977-05-10

Waring, Alvin H.

Communications: electrical

Selective

Having indication or alarm

340224, 340280, 343225, 180114, B60R 2504

Patent

active

040231380

ABSTRACT:
A vehicle theft prevention system includes a receiver located in the vehicle for receiving a signal from a remote transmitter. When the distance between the receiver and transmitter exceeds a predetermined amount, such that the signal strength at the receiver is less than a predetermined signal level, a control circuit is actuated which upon actuation may actuate an alarm, deactuate the vehicle ignition system so as to prevent further operation of the vehicle, or both.

REFERENCES:
patent: 3157871 (1964-11-01), Umanoff

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