| 摘要 |
PROBLEM TO BE SOLVED: To obtain the receiver which can drive off a villain such as molester and a stalker by generating an alarm sound by providing an alarm sound generating means which generates the alarm sound when specific rotary motion of the housing is detected. SOLUTION: The bearer of this receiver when encoutering a villain such as a molester, a grabber, and a stalker grips the housing of the receiver directly with the hand and swings it about or swings a bag about if the receiver is in the bag, giving a specific rotary motion to the housing. As this specific motion, specific pendulum motion, rotation of 180 to 360 deg. or the like, are preferably set in advance in an operation program or gyro 24 itself. Then when this receiver has the specific rotary motion given to the housing, a control part 10 receives the output from the gyro 24 and generates a loud sound by using the speaker included in an alarm part 22. |
