Electronic device with changeable acoustic properties
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United States of America Patent
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May 29, 2018
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app pub date -
Oct 7, 2015
filing date -
Jun 29, 2009
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Abstract
Apparatus including: an acoustic transducer, and a sound channel coupled to the acoustic transducer, the sound channel including an element having a shape that is electrically controllable, wherein the shape of the element is electrically controllable to change the acoustic properties of the sound channel.
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