| 摘要 |
PROBLEM TO BE SOLVED: To provide a bone conduction speaker capable of providing a sufficient sound volume from air vibration sound as well as bone conduction sound and giving clear listening to a user when the speaker is employed particularly for a receiver of a bone conduction telephone set. SOLUTION: The bone conduction speaker comprises a bone conduction speaker unit 1 and a case 2 containing the unit 1 and acting like a vibration part, and is provided with a compliance increase means such as a corrugation 12 located along a circumferential edge of a vibrating face 11 of the case 2 for fixing the bone conduction speaker unit 1. COPYRIGHT: (C)2004,JPO&NCIPI
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