System for controlling the primary lobe of a hearing instrument's directional sensitivity pattern
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United States of America Patent
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Jun 3, 2014
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N/A
app pub date -
Dec 4, 2009
filing date -
Dec 5, 2008
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Abstract
Systems and method for computing in-situ estimates of the overall level and incoming direction of ambient acoustical energy by combining the output signals of at least one differential directional microphone and at least one omnidirectional microphone, or, multiple differential directional microphones, at specified gains, in order to have various polar pattern estimates for acoustical energy arriving from three or more sectors about the user. In one embodiment as many as eight different sectors about the user, including the front, rear, and sides are used. In various embodiments, front, rear and/or side or portions thereof are used. Other numbers of sectors are possible without departing from the scope of the present subject matter.
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