| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a situation of a wireless telephone terminal such as producing noise by the vibration of a vibrator while the wireless telephone terminal is laid on a desk, etc., or being dropped from the desk and damaged resulting after an unexpected movement of the wireless telephone terminal. SOLUTION: The wireless telephone terminal includes a vibration step (A1) for vibrating the vibrator at the time of call termination without producing a ringing sound; a measurement step (A3) for measuring a frequency characteristic of the noise by inputting peripheral sounds from a microphone 102; a decision step (A4) for deciding from the frequency characteristic whether or not the noise is caused by the vibration of a vibrator 105; a vibration control step (A5) for reducing the vibration intensity of the vibrator 105 if the noise is caused by the vibration of the vibrator 105; and a modification step (A6) for determining whether the vibrator possibly stops the vibration when the intensity of the vibrator 105 is weakened, and if the vibrator possibly stops the vibration under the weakened vibration intensity, modifying to a terminating means including a speaker 103 from the vibrator 105. COPYRIGHT: (C)2004,JPO
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