Evacuation of Liquid from Acoustic Space
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United States of America Patent
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Issued Date -
Sep 13, 2018
app pub date -
May 15, 2018
filing date -
May 15, 2018
priority date (Note) -
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Abstract
An acoustic module, such as a microphone or speaker module, includes an acoustic membrane that vibrates to produce acoustic waves and an acoustic cavity through which acoustic waves produced by the membrane travel. A liquid removal mechanism removes liquid from the acoustic cavity. Such a liquid removal mechanism may include the acoustic membrane, heating elements, hydrophobic and/or hydrophilic surfaces, and so on. In some cases, the liquid removal mechanism may remove liquid from the acoustic cavity upon connection of the acoustic module and/or an associated electronic device to an external power source.
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