Dual technology glass breakage detector

Details Dual technology glass breakage detector Dual technology glass breakage detector

2008-01-29

2008-01-29

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular system function

C522S038000

Reexamination Certificate

active

10853361

ABSTRACT:
A dual technology glass breakage detector for a security system that detects the breaking of glass in a window or door without generating false alarms caused by similar types of sounds. The dual technology glass breakage detector includes an acoustic sensor/audio processor for detecting a sound of breaking glass within a premises protected by the security system, and also a second impact sensor mounted on the glass window or door to verify that there was a physical/mechanical impact to the glass window or door before the security system annunciates an alarm signal.

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