Patent ID: 7760448
Filing Date: 2010-07-20
Classification: G03B

Abstract:
1. A image stabilization control circuit in which a vibration detection signal corresponding to the movement speed of an image capturing device is obtained from a vibration detector provided to the image capturing device, and which drives a vibration compensation 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 vibration-compensating 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 of the target compensation region; and an integration circuit for performing the integration process on the vibration detection signal transmitted by the high pass filter; and wherein the integration circuit uses a phase delay compensation circuit for compensating a phase delay in the target compensation region, achieves a counterbalance between a reduced phase delay of the phase delay compensation circuit in a high-frequency region, and a phase delay of the vibration detection signal increased in the high-frequency region by the characteristics of the vibration detector, and adjusts the phase characteristics in the target compensation region and the high-frequency region.