| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress hypersensitive reaction of a lens or an image pickup device to an acceleration signal while the accumulation value of the acceleration signal output from a vibration detection element is small. Ž<P>SOLUTION: An integration circuit 36 integrates an acceleration signal output from a vibration detection element 60 and generates a shift amount signal indicating the shift amount of an imaging device. The integration circuit 36 is formed by a digital filter, which includes a register for holding an accumulation value serving as a shift amount signal. A control unit 31 acquires an accumulation values held in the register at a predetermined interval and obtains a change amount between the accumulation value previously obtained and the accumulation value currently obtained. When the change value exceeds a predetermined threshold, the control unit 31 subtracts a correction value from the currently obtained accumulation value so that the value approaches zero and resets the obtained value in the register. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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