Patent ID: 8279292

Claim:
An image stabilization control circuit used for an image pickup apparatus comprising a vibration-detecting element, a vibration-compensating mechanism having a moveable component, and a position-detecting element for detecting a driving position of the moveable component, displacement of the moveable component reducing the effect of image-capture displacement resulting from vibration of the image pickup apparatus; wherein the image stabilization control circuit comprises: a current position signal-generating part for generating a current position signal, which is a digital signal, for indicating a current position of the moveable part, based on a signal outputted by the position-detecting element; a shake displacement signal-generating part for generating a shake displacement signal, which is a digital signal, in accordance with a degree of shake displacement of the image pickup apparatus, based on a signal outputted by the vibration-detecting element, using a sampling rate lower than the current position signal; a target position signal-generating part for correcting the shake displacement signal based on a pre-set correction function and generating a target position signal for indicating a target position for the moveable component; and a displacement control signal-generating part for generating a displacement control signal for instructing the vibration-compensating mechanism to displace the moveable component from the current position to the target position, based on the target position signal and the current position signal; the target position signal-generating part comprises: a memory part for storing, as the correction function, a corresponding relationship between a value before a correction and a corrected value of the shake displacement signal configured based on input/output characteristics of the position-detecting element indicating a relationship between the driving position of the moveable component and the current position signal; and a processor for correcting the shake displacement signal and calculating the target position signal from the corrected shake displacement signal, based on the correction function.