EARPHONE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 9, 2012
app pub date -
Mar 18, 2010
filing date -
Oct 5, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
an earphone has a driver unit that generates a sound according to an electrical signal inputted therein, a first sound channel from which the sound generated in the driver unit is outputted, and a second sound channel through which a sound generated in the driver unit is transmitted by way of a channel different from the first sound channel to combine the transmitted sound with the sound in the first sound channel.
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