| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker device mainly employing bone conduction and capable of being used in various environments. SOLUTION: The speaker device is provided with a piezoelectric vibrator 11, a pressure sensor 12 for detecting a pressing force between the piezoelectric vibrator 11 and a vibration transmitter for pressing this piezoelectric vibrator 11, and a vibration output control means for increasing the vibration output of the piezoelectric vibrator 11 in response to the increase in the pressing force. Also, the piezoelectric vibrator 11 is supported by a supporter 13, and the pressing sensor 12 is attached on the supporter 13. Further, the pressure sensor is configured so that it has high sensitivity for static pressure and low sensitivity in a sound frequency band. COPYRIGHT: (C)2006,JPO&NCIPI
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