Earphone and a method for providing an improved sound experience
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United States of America Patent
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Jun 12, 2012
Grant Date -
Apr 23, 2009
app pub date -
Oct 22, 2007
filing date -
Oct 22, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides an earphone comprising an electro-active polymer that is adapted such that the outer circumference of a resilient member of the earphone is responsive to an electric voltage, enabling providing essentially sealing the ear canal when the resilient member of the earphone at least partly is inserted in an ear canal of a wearer. The electro-active polymer also enables an improved game and sound experience by providing by synchronizing the outer circumference of the resilient member with the electric signal provided to the earphone.
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