| 摘要 |
PROBLEM TO BE SOLVED: To provide a microphone, a portable telephone and a desk top telephone which cut off shock sounds even when a shock is exerted. SOLUTION: The microphone converts input sound information into electric signals. The microphone comprises a microphone body 11 for converting inputted sound information into electrical signals for outputting, and a microphone circuit 21. The microphone has a vibration sensor 24 for detecting vibrations, and an output cut-off circuit 23 for cutting off the input signal from outputting to input the signal output from the microphone circuit 21, based on a vibration detected by the sensor 24. The cut off circuit 23 cuts off impulsive sound. COPYRIGHT: (C)2004,JPO |
