Method and apparatus for detection of a location of an event

Details Method and apparatus for detection of a location of an event Method and apparatus for detection of a location of an event

2005-09-06

2005-09-06

Swarthout, Brent A. (Department: 2636)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S518000, C340S524000, C340S286050, C340S286060, C340S286070, C340S628000, C340S629000, C340S630000, C340S631000, C340S632000

Reexamination Certificate

active

06940402

ABSTRACT:
A method and apparatus for detecting the location of an event from amongst a plurality (A to P) of locations. Lines of communication (R1to R4, C1to C4), commonly pipes of a smoke detection system, cover the locations in such a fashion that the location of an event can be determined uniquely but the number of pipes is minimized.

REFERENCES:
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patent: 3678487 (1972-07-01), Ludewig et al.
patent: 3765842 (1973-10-01), Purt
patent: 3873978 (1975-03-01), Niki
patent: 3952808 (1976-04-01), Richardson
patent: 4318087 (1982-03-01), Wilson
patent: 4764758 (1988-08-01), Skala
patent: 4980685 (1990-12-01), Souloumiac et al.
patent: 5552775 (1996-09-01), Harley

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