Patent ID: 8058770

Claim:
An image stabilization control circuit comprising: a vibration compensation signal generation unit for generating, based on an output signal of a sensor for detecting a vibration of an imaging device, a vibration compensation signal that is in accordance with an amount of displacement of the imaging device caused by the vibration; a lens control unit for generating a signal for controlling driving of a drivable lens on the basis of the vibration compensation signal and an output signal of a sensor for detecting a drive position of the lens of the imaging device; and a piezoelectric actuator drive circuit for generating, based on the output signal of the lens control unit, a square-waveform drive signal for driving a piezoelectric actuator for displacing the lens one step at a time; wherein the piezoelectric actuator drive circuit has: a duty storage unit for storing information for defining first and second duty states for producing displacements having mutually different step widths for a duty of the drive signal; a drive signal generation unit for generating the drive signal of the first or second duty state on the basis of information stored in the duty storage unit; and a control unit capable of controlling whether the generated drive signal is set to any of the first and second duty states and switching between displacing the lens through fine movement having a small step width, and displacing the lens through coarse movement having a large step width.