发明名称 EARPHONE DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide an earphone device which is comfortably worn and can offer further improved sound quality. <P>SOLUTION: The earphone device comprises: a housing 5 which has a driver unit 12 including a diaphragm 15 vibrating upon signal input, with the diaphragm 15 adjacent and opposed to a front face, and has a hole formed in the center of the front face; and a sound conduit 4 protruding from a position on the front face of the housing 5 opposed to the diaphragm 15 more peripheral than the hole of the housing 5, away from the central axis of the housing 5. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP2013123260(A) 申请公布日期 2013.06.20
申请号 JP20130023154 申请日期 2013.02.08
申请人 SONY CORP 发明人 MATSUO TOMOHIRO;OTA TAKASHI;TONO KOJI;ITO TOMOHIRO
分类号 H04R1/10 主分类号 H04R1/10
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