Patent ID: 6801247
Filing Date: 2004-10-05
Classification: H04N

Abstract:
A vibration detecting device comprising:a vibration detector which detects a vibration and outputs a vibration detecting signal; an output signal generator which generates an output signal; a calculator which performs a predetermined operation based on three signal inputs to said calculator, including said vibration detecting signal, said output signal and a predetermined reference voltage to generate an operation output signal; an operation signal generator which generates an operation signal for controlling said output signal generator; and a controller which controls said output signal generator based on said operation output signal, wherein said output signal generator is provided with an output signal level variable portion which can vary a level of said output signal based on said operation signal, said controller determines whether said operation output signal exceeds a predetermined range and, when said operation output signal exceeds the predetermined range, controls said operation signal generator to generate said operation signal to adjust in such a manner that said operation output signal is in said predetermined range, and said controller is provided with a compensating portion to compensate for the operation output signal before and after being adjusted.