Granted Patent B2

US 8,482,621 · App. 12/334,928 · Granted Jul 9, 2013

Abstract

Claims (6)

1. An image stabilization control circuit for reducing influence on image pickup from vibration by driving an optical component of an imaging apparatus according to vibration, comprising:

a vibration control equalizer formed by a logic circuit and for generating a vibration signal for determining a movement amount of the optical component on the basis of an output signal of a vibration detector for detecting vibration of the imaging apparatus, the logic circuit being formed separately from an internal CPU and having a function that cannot be changed by a program;

a position control equalizer formed by a logic circuit and for calculating a position signal for determining a driving amount for the optical component on the basis of an output signal of a position detector for detecting position of the optical component, the logic circuit being formed separately from the internal CPU and having a function that cannot be changed by a program; and

an internal CPU for controlling the vibration control equalizer and the position control equalizer;

wherein the internal CPU compensates for the output signal of the position detector and the position control equalizer calculates the position signal on the basis of a signal compensated by the internal CPU.

2. An image stabilization control circuit according to claim 1 , wherein the internal CPU performs compensation so the output signal of the position detector indicates linearity with respect to position of the optical component.

Assignments (7)