| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bone conduction generator which can add a bone conduction function to a conventionally used telephone. <P>SOLUTION: An induction coil 3 and a yoke 4 are secured in a case 1a. A vibration coil 5 is also secured in the case 1a in front of the yoke 4 and a permanent magnet 7 secured with a vibration member 2 is inserted into the vibration coil 5. When a voice is generated from the voice generating section 11 of a portable telephone 10, a magnetic field B based on that voice leaks from a voice coil C. The leaked magnetic field B interlinks the induction coil 3 to induce a current therein. An electric signal produced by the current induced in the induction coil 3 is transmitted to the vibration coil 5 and the vibration member 2 is vibrated together with the permanent magnet 7. <P>COPYRIGHT: (C)2004,JPO</p> |
