Title:
EMBEDDED AUDIPHONE
Document Type and Number:
WIPO Patent Application WO/2010/035812
Kind Code:
A1
Abstract:
An embedded audiphone which is sensitive. An intracorporeal unit (3) embedded into a cranial bone (5) is provided with a vibrator (34) composed of a super magnetostrictive element. An audible sound modulation transmission signal (S1) having amplitude modulated by a sound collecting signal generated by an extracorporeal unit (2) is transmitted from an extracorporeal transmission coil (31) via a transmission magnetic flux (33) to an intracorporeal reception coil (32) provided in the intracorporeal unit (3). The vibrator (34) is driven to expand and contract by induced electromotive force of the intracorporeal reception coil (32). Consequently, an audible sound signal is precisely bone-conducted without providing the intracorporeal unit (3) with a power source or a demodulation circuit.
Inventors:
KOIKE TAKUJI (JP)
HATO NAOHITO (JP)
YAMAMOTO KENSEI (JP)
HATO NAOHITO (JP)
YAMAMOTO KENSEI (JP)
Application Number:
PCT/JP2009/066709
Publication Date:
April 01, 2010
Filing Date:
September 16, 2009
Export Citation:
Assignee:
UNIV ELECTRO COMMUNICATIONS (JP)
UNIV EHIME (JP)
KOIKE TAKUJI (JP)
HATO NAOHITO (JP)
YAMAMOTO KENSEI (JP)
UNIV EHIME (JP)
KOIKE TAKUJI (JP)
HATO NAOHITO (JP)
YAMAMOTO KENSEI (JP)
International Classes:
A61F11/00; H04R15/00; H04R25/00
Domestic Patent References:
| WO2007095196A2 | 2007-08-23 |
Foreign References:
| JPS62277955A | 1987-12-02 | |||
| JPH11506572A | 1999-06-08 | |||
| JP2003521337A | 2003-07-15 | |||
| JP2004343446A | 2004-12-02 | |||
| JPH09261797A | 1997-10-03 | |||
| JPH09261797A | 1997-10-03 | |||
| JP3174324B2 | 2001-06-11 | |||
| JP2004289219A | 2004-10-14 | |||
| JP2007184722A | 2007-07-19 |
Other References:
See also references of EP 2329802A4
Attorney, Agent or Firm:
TANABE, Shigemoto (JP)
Tanabe Blessing machine (JP)
Tanabe Blessing machine (JP)
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