USE OF HYBRID TRANSDUCER ARRAY FOR SECURITY EVENT DETECTION SYSTEM
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Sep 28, 2012
filing date -
Sep 29, 2011
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Abstract
Security events, such as gunshots may be determined using hybrid sensors. The hybrid sensors have at least two different elements that are sensitive to the security event, such as conventional microphone and a fiber optic microphone, which, in the case of a gunshot, permits a better scanning of the report of the gunshot to better determine its direction, signature features, and time of arrival. Additionally, sensor can be employed having multiple elements that are sensitive to a security event where at least one of the elements is not coplanar with the rest. This displacement along an orthogonal axis may be used to improve the ability of a network of such sensors to determine the direction and origin of a security event in a three dimensional system.
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