Flat-panel acoustic apparatus
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United States of America Patent
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May 23, 2017
Grant Date -
Dec 15, 2016
app pub date -
Jun 10, 2015
filing date -
Jun 10, 2015
priority date (Note) -
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Abstract
In an acoustic apparatus, an acoustic transducer is arranged in a substrate. Multiple acoustic pathways in the substrate have predetermined lengths, wherein a proximal end of each pathway forms an opening in a front surface of the substrate, and a distal end terminates at the acoustic transducer. The predetermined lengths of the acoustic pathways are designed to form an acoustic spatial filter that selectively passes acoustic signals from or to different locations. The transducer can convert electric energy to acoustic energy when the apparatus operates as a speaker, or the the transducer can convert acoustic energy to electric energy and operate as a microphone.
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