To output a vibration detection signal corresponding to actual vibration applied to a device.

This device has a 1st decision means (#102) which decides whether the integration output of an integrating means integrating the signal detected by a vibration detecting means is larger than a prescribed value, a 2nd decision means (#103) which decides the integration output is less than a 2nd prescribed value, and arithmetic processing means (#107 to #112) which compute and output vibration detection signals according to the decision results of the 1st and 2nd decision means.