G - Physics – 08 – B
Patent
G - Physics
08
B
G08B 21/00 (2006.01) G08B 13/04 (2006.01)
Patent
CA 2184436
The glass break detector uses sampling techniques to a low band and a high band portion of a signal from a transient event to assess whether the bands are random. In addition, an assessment of the envelope shape of the signal is made to confirm the signal is consistent with a rapid rise followed by a sloped decay typical of transient events. It has been found that dividing of the signal into high and low bands and analyzing each portion over a short front end portion of a transient event is effective in distinguishing glass break events from other common events.
Cecic Dennis
Fong Hartwell
Dennison Associates
Tyco Safety Products Canada Ltd./produits de Securite Tyco Canad
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