Apparatus for suppressing automobile anti-theft arm/disarm syste

Details Apparatus for suppressing automobile anti-theft arm/disarm syste Apparatus for suppressing automobile anti-theft arm/disarm syste

1990-04-18

1991-02-26

Orsino, Joseph A.

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340502, 307 102, B60R 2510

Patent

active

049965158

ABSTRACT:
An apparatus for automatically suppressing the audible arm and disarm signal associated with an automobile anti-theft system includes a control circuit connected between an anti-theft system and its sound emitter. A photoresistor cell is connected to the control circuit to indicate whether the light level is above or below a threshold level, e.g. to distinguish day from night. In the day, the control circuit is bypassed and the system functions normally. At night, the control circuit suppresses the system signal for a short interval, e.g. two seconds, to eliminate the audible arm and disarm signal. The short suppression interval does not significantly interfere with an intruder alarm signal.

REFERENCES:
patent: 4383242 (1983-05-01), Sassover et al.
patent: 4691801 (1987-09-01), Mann et al.
patent: 4794368 (1988-12-01), Grossheim et al.
patent: 4866417 (1989-09-01), DeFino et al.
patent: 4885572 (1989-12-01), Iwata et al.
Crimestopper Security Products, Inc., HP7508 Stiletto.TM. Digital Remote Alarm System, Installation Instructions, pp. 1-37.
Viper Auto Security, Model 300, Installation Guide, pp. 1-8.
XT Plus Code-Alarm, Micro-Processor Controlled Vehicle Security System With Remote Control Micro-Mitter, Installation Instructions, pp. 1-13.
Crimestopper Security Products, Inc. Hi-Pro Security Products, HP8710, Remote Alarm System, Installation Instructions, pp. 1-43.

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