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United States of America Patent
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Issued Date -
Jun 21, 2012
app pub date -
May 3, 2011
filing date -
Dec 15, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A plug is used for connecting a first speaker. The first speaker includes a first magnet, a first vibrating element, and a first electromagnetic inductor. The first vibrating element vibrates relatively to the first magnet for sounding. The first electromagnetic inductor generates electricity induced by a magnetic field of the first magnet. The plug includes a first audio terminal, a pair of first power terminals, and a ground terminal. The first audio terminal is used for electrically connecting the first vibrating element. The pair of first power terminals is used for electrically connecting the first electromagnetic inductor, so as to output the electricity generated by the first electromagnetic inductor. The ground terminal is used for connecting the first vibrating element.
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