Vehicle security system

Details Vehicle security system Vehicle security system

1991-03-14

1994-02-08

Hofsass, Jeffrey

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340426, 307 102, B60R 2510

Patent

active

052851869

ABSTRACT:
A vehicle security system includes at least one sensor, a controller and at least one output device driver. The sensor has a rest state and a tripped state. The controller has an armed state and a disarmed state. The first output device driver transitions from its quiescent to its alarm state in response to the first sensor transitioning from its rest state to its trip state and the controller is in its armed state and furthermore when the ignition circuit is off. The first output device driver will remain in the quiescent state independently of the present state of the sensor if the ignition circuit is on and the controller is in its armed state. If the controller is in the disarm state, any activity by the sensor will not have any effect on the system.

REFERENCES:
patent: 4706064 (1987-11-01), Hwang
patent: 4866417 (1989-09-01), DeFino et al.
patent: 4887064 (1989-12-01), Drori et al.
patent: 4922224 (1990-05-01), Drori et al.

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