发明名称 Electro-acoustic transducer and housing
摘要 An electro-acoustic transducer for a sound reproducing system includes an electro-acoustic transducer in a cabinet and a sound guide tube for conducting the sound from the transducer unit out of the cabinet. The sound guide tube has a sound radiating end with a smaller diameter than the external acoustic meatus to allow the sound radiating end to be inserted into the external auditory meatus.
申请公布号 US6307943(B1) 申请公布日期 2001.10.23
申请号 US19940320935 申请日期 1994.10.11
申请人 SONY CORPORATION 发明人 YAMAGISHI MAKOTO
分类号 H04R1/10;H04R1/28;(IPC1-7):H04R1/02;A61B7/02 主分类号 H04R1/10
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