发明申请
- 专利标题: EMBEDDED AUDIPHONE
- 专利标题(中): 嵌入式AUDIPHONE
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申请号: US13120813申请日: 2009-09-16
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公开(公告)号: US20110243356A1公开(公告)日: 2011-10-06
- 发明人: Takuji Koike , Naohito Hato , Kensei Yamamoto
- 申请人: Takuji Koike , Naohito Hato , Kensei Yamamoto
- 优先权: JP2008246342 20080925
- 国际申请: PCT/JP2009/066709 WO 20090916
- 主分类号: H04R25/00
- IPC分类号: H04R25/00
摘要:
Provided is a high-accuracy embedded audiphone.A transducer (34) made of a giant magnetostrictive element is provided in an intracorporeal unit (3) that is embedded in a skull (5). An audible sound modulation transmission signal (S1), which is amplitude-modulated by a sound collection signal generated in an extracorporeal unit (2), is transmitted from an extracorporeal transmitter coil (31) to an intracorporeal receiver coil (32) provided in the intracorporeal unit (3) with the help of a transmission magnetic flux (33). Moreover, because of an induced electromotive force of the intracorporeal receiver coil (32), the transducer (34) expands and contracts. Therefore, it is possible to highly accurately conduct an audible sound signal through bone with no power source or demodulation circuit provided in the intracorporeal unit (3).
公开/授权文献
- US08520867B2 Embedded audiphone 公开/授权日:2013-08-27