Sound sources separation and monitoring using directional coherent electromagnetic waves
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United States of America Patent
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Oct 16, 2012
Grant Date -
Nov 4, 2010
app pub date -
Jul 15, 2010
filing date -
Sep 1, 2006
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Abstract
An apparatus and a method that achieve physical separation of sound sources by pointing directly a beam of coherent electromagnetic waves (i.e. laser). Analyzing the physical properties of a beam reflected from the vibrations generating sound source enable the reconstruction of the sound signal generated by the sound source, eliminating the noise component added to the original sound signal. In addition, the use of multiple electromagnetic waves beams or a beam that rapidly skips from one sound source to another allows the physical separation of these sound sources. Aiming each beam to a different sound source ensures the independence of the sound signals sources and therefore provides full sources separation.
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