| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound/vibration information collection mechanism which accurately detects a biological acoustic signal and a biological signal more than before.SOLUTION: A sound/vibration information collection mechanism 10 is constituted having a first layer 11, a second layer 12 and a third layer 13. A natural vibrator 122 having a natural frequency is arranged at the second layer 12. When the sound/vibration information of a trunk back is inputted, the natural vibrator 122 vibrates at the natural frequency, and the vibration and the sound/vibration information of the trunk back are synthesized and emphasized. A synthesized resonance carrier wave (RC) emphasizes the sound/vibration information of the trunk back, and can be grasped as a clear signal. By acquiring the biological signal having several Hz or lower of APW and a heartbeat from the resonance carrier, the gain of the biological signal is raised, and the biological signal can be further accurately extracted.SELECTED DRAWING: Figure 1 |
