Invention Grant
- Patent Title: Earphone
- Patent Title (中): 耳机
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Application No.: US14003892Application Date: 2013-01-29
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Publication No.: US09319767B2Publication Date: 2016-04-19
- Inventor: Atsushi Sakaguchi , Shuji Saiki , Toshiyuki Matsumura , Sawako Kano , Akiko Fujise
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P
- Priority: JP2012-016760 20120130
- International Application: PCT/JP2013/000471 WO 20130129
- International Announcement: WO2013/114864 WO 20130808
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R1/10 ; H04R1/28 ; H04R25/02 ; H04R9/02

Abstract:
An earphone includes: a loudspeaker unit; a sound conductive tube which is connected to a front surface having a diaphragm included in the loudspeaker unit, and has a hole through which a sound generated from the loudspeaker unit is emitted; a housing which is connected to a back surface of the loudspeaker unit so that a space is formed between the housing and the back surface of the loudspeaker unit, and has a first air hole connecting the space to external air; a first braking part which closes a sound hole of the loudspeaker unit; and a second braking part which closes the first air hole.
Public/Granted literature
- US20140056455A1 EARPHONE Public/Granted day:2014-02-27
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