PORTABLE ELECTRONIC DEVICE HAVING UNIVERSAL EARPHONE JACK
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Oct 25, 2012
filing date -
Jun 7, 2012
priority date (Note) -
Abandoned
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Abstract
A portable electronic device includes an earphone jack for receiving an earphone plug, a switch unit and a signal processing unit. The switch circuit operates in a first mode, a second mode, and a third mode. The signal processing unit identifies a type of the earphone plug and controls the switch unit to switch to the first mode, the second mode, or the third mode according to the type of the earphone plug.
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