ATCO -- Breakthrough in Sound Reproduction Message Board

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Technology Stocks : ATCO -- Breakthrough in Sound Reproduction

ATCO 15.48

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Mar 28 5:00 PM EST

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To: SunAge who started this subject	3/11/2002 2:30:07 AM
From: Savant	Read Replies (1) of 2062

Mundane usage. ATCO's HSS will do wonders for plain, old, public address systems. Every been to a meeting or gathering and been besieged by that annoying squeeeeel from the speakers..very distracting and quite disconcerting to even accomplished orators. ---------- The present invention is embodied in a method and apparatus for eliminating audio feedback which includes an active microphone coupled to an amplifier which transmits signals received at the active microphone to a parametric speaker for broadcasting. The apparatus comprises at least one transducer for detecting at least one sonic frequency and generating an electrical signal representative of the at least one sonic frequency, a processor for receiving the electrical signal and generating a first ultrasonic frequency which has modulated thereon the at least one sonic frequency, a parametric demodulator for recovering the at least one sonic frequency from the first ultrasonic frequency, and a speaker for directly emitting the at least one sonic frequency. ------------- Probably a 'coupla' systems might be sold. Best, Savant

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