| 摘要 |
PROBLEM TO BE SOLVED: To provide an effective and compact structure for a sound information transmission apparatus adopting bone conduction wherein not only vibration of an earphone speaker but also environmental noise picked up by a housing is hardly delivered to a microphone. SOLUTION: The apparatus is supported by inserting an earphone part into a cavity of an ear concha, and a box part for supporting an earphone head and a microphone for stably picking up bone conduction sound vibration via an elastic material is integrated with the earphone part, and the box part is stored in a housing via a flexible elastomer material with an excellent damping characteristic. Further, an earphone speaker is separated from the earphone head and supported to the housing side by a vibration proof structure. COPYRIGHT: (C)2005,JPO&NCIPI
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