False alarm reduction method and system

Details False alarm reduction method and system False alarm reduction method and system

2008-01-29

2008-01-29

Pope, Daryl C (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular system function

C340S506000, C340S524000, C340S525000, C340S870030, C340S870030, C340S003100

Reexamination Certificate

active

07323978

ABSTRACT:
A digital verification control, which is incorporated with an alarm system, includes a first timer device for presetting a single zone verification time in the control panel and second timer device for presetting a multiple zone verification time in the control panel. The single zone verification time is a single detector time delay and arranged when one of the sensors detects at least two triggered signals in the respective detecting area within the single zone verification time, the local warning system is activated for producing a local warning signal. The multiple zone verification time, which is longer than the single zone verification time, is a multiple detector time delay and arranged when the two sensors detect two triggered signals in the detecting areas respectively within the multiple zone verification time, the local warning system is activated for producing the local warning signal.

REFERENCES:
patent: 4833449 (1989-05-01), Gaffigan
patent: 4857912 (1989-08-01), Everett et al.
patent: 5736927 (1998-04-01), Stebbins et al.
patent: 6084509 (2000-07-01), Simpson, Sr.
patent: 6137411 (2000-10-01), Tyren

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