发明名称 Earphone device
摘要 There is provided an earphone device of an ear-hole insertion type having a noise cancelling function, the earphone device including a left channel housing unit that accommodates a left channel driver unit outputting a left channel sound; and a right channel housing unit that accommodates a right channel driver unit outputting a right channel sound. A microphone for noise cancelling and a battery are accommodated in each of the left and right channel housing units.
申请公布号 EP2566186(A3) 申请公布日期 2014.01.01
申请号 EP20120177801 申请日期 2012.07.25
申请人 SONY CORPORATION 发明人 IDE, KENJI;KITO, KAZUHISA;TSUNODA, NAOTAKA
分类号 H04R1/10;H04R5/033 主分类号 H04R1/10
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