Patent ID: 8199206
Filing Date: 2012-06-12
Classification: G03B

Abstract:
1. An image stabilization control circuit for obtaining from a vibration-detection element provided to an image capturing device a vibration detection signal that corresponds to displacement velocity, and for driving an image stabilization mechanism of the image capturing device, the image stabilization control circuit comprising: a vibration-compensating signal generator circuit for performing an integration process on the vibration detection signal and generating a vibration-compensating signal corresponding to the displacement magnitude of the image capturing device; and a servo circuit for generating, on the basis of the vibration-compensating signal, a drive signal for driving the image stabilization mechanism; wherein the vibration-compensating signal generator circuit has: a high-pass filter for damping a low-frequency component from the vibration detection signal, and transmitting a vibration component in a target compensation region; an integration circuit for performing the integration process on the vibration detection signal that has passed through the high-pass filter; and a phase lag compensation circuit for performing phase lag compensation, and configured to adjust a phase characteristic of the vibration-compensating signal generator circuit closer to a 90° delay across an entirety of the target compensation region.