Title:
EARPHONE
Document Type and Number:
WIPO Patent Application WO/2018/034438
Kind Code:
A1
Abstract:
In order to control the output in a low-pitched sound domain zone or a specific frequency domain zone of an earphone, provided is an earphone comprising: a driver unit; a housing forming an electric component part so as to load the driver unit; a groove formed along a first path on the inner surface of the housing; a pipeline damper covering the inner surface of the housing so as to form a pipeline along the groove; a first external base hole formed in the housing at a first point of the pipeline; and an internal base hole formed in the pipeline damper at a second point of the pipeline.
Inventors:
NA YONGHYUK (KR)
CHOI BYUNGKIL (KR)
CHOI BYUNGKIL (KR)
Application Number:
PCT/KR2017/007945
Publication Date:
February 22, 2018
Filing Date:
July 24, 2017
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04R1/28; H04R1/10
Foreign References:
US20140072161A1 | 2014-03-13 | |||
KR20160048904A | 2016-05-04 | |||
KR100968406B1 | 2010-07-07 | |||
US20120155691A1 | 2012-06-21 | |||
KR100694160B1 | 2007-03-12 |
Other References:
See also references of EP 3503577A4
Attorney, Agent or Firm:
KIM, Yong In et al. (KR)
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