Security system with false alarm inhibiting

Details Security system with false alarm inhibiting Security system with false alarm inhibiting

1987-05-28

1989-02-28

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340526, 340636, 340652, 340691, G08B 1300, G08B 2500, G08B 2700

Patent

active

048089729

ABSTRACT:
A security system includes a plurality of sensors each capable of providing a detection input signal adapted to cause activation of the alarm system, a circuit for inhibiting activation of the alarm system as a result of a first detection input signal, and a circuit for removing the inhibition and allowing activation of the alarm system in response to a second detection input signal from any one of the sensors, including the sensor that provided the first detection input signal. A first alarm device is located essentially indoors on the premises to be protected and a second alarm device is located outdoors on the premises to be protected. The inhibition circuit allows activation of only the indoor alarm device, but a further detection input signal from one of the sensors within a predetermined time activates the outdoor alarm device.

REFERENCES:
patent: 3713128 (1973-01-01), Wong et al.
patent: 3828338 (1974-08-01), Kato
patent: 4195286 (1980-03-01), Galvin
patent: 4509102 (1985-04-01), Ayer
patent: 4611197 (1986-09-01), Sansky

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