Vibration correction control circuit for correcting displacement of an optical axis due to vibration including camera shake and image pickup apparatus equipped therewith

A vibration correction control circuit for correcting displacement of an optical axis due to vibration applied to an image pickup apparatus, the circuit comprising:

• an integrating circuit configured to integrate an angular velocity signal output from a vibration detection element for detecting the vibration and generate a shift amount signal indicating a shift amount of the image pickup apparatus, the integrating circuit being configured with a digital filter which includes a register for retaining an integrated value to be set as the shift amount signal;
• and
• a control unit configured to control the integrating circuit, the control unit acquiring an integrated value retained in the register at predetermined time intervals, computing the variation value between the integrated value currently acquired and the integrated value previously acquired, subtracting from the integrated value currently acquired an adjustment value obtained by dividing the variation value by a predetermined value, and re-setting the value retained in the register to the resulting value.

A vibration correction control circuit for correcting displacement of an optical axis due to vibration applied to an image pickup apparatus, the circuit comprising:

• an integrating circuit configured to integrate an angular velocity signal output from a vibration detection element for detecting the vibration and generate a shift amount signal indicating a shift amount of the image pickup apparatus, the integrating circuit being configured with a digital filter which includes a register for retaining an integrated value to be set as the shift amount signal;
• and
• a control unit configured to control the integrating circuit, the control unit acquiring an integrated value retained in the register at predetermined time intervals and computing the variation value between the integrated value currently acquired and the integrated value previously acquired, and, if the variation value is continuously a predetermined threshold or less for a predetermined time, subtracting from an integrated value retained in the resister at the time when the predetermined time terminates, an adjustment value for bringing the integrated value close to zero and re-setting the value retained in the register to the resulting value.