Acoustic alert communication system with enhanced signal to...

Communications: electrical – Condition responsive indicating system – With particular system function

Reexamination Certificate

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C340S517000, C340S539260, C381S056000, C381S057000

Reexamination Certificate

active

11204952

ABSTRACT:
System, device and method for alerting an individual to an alert condition using acoustic alarms having less sensitivity to multipath distortion and having improved inherent signal to noise ratio properties, wherein the acoustic alarms are readily distinguishable using standard digital processing techniques.

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