Patent ID: 7689107

Claim:
An anti-shake apparatus of a photographing apparatus, comprising: a hand-shake quantity detector that has a first detector having an angular velocity sensor and that has a second detector having an angular displacement sensor, said angular displacement sensor comprising an inclination angular sensor that detects an inclination angle of a pendulum, said first detector has an integration unit and a high-pass filter unit that removes a low-frequency component of a signal output from said angular velocity sensor to obtain a high-frequency signal from which said low-frequency component has been removed, and said second detector has a hold unit and a low-pass filter unit that removes a high-frequency component of a signal output from said angular displacement sensor to obtain a low-frequency signal from which said high-frequency component has been removed, said integration unit integrating said high-frequency signal and generating a first angular signal based on the integrated high-frequency signal; and said hold unit holding a value output from said low-pass filter unit based on said low-frequency signal at an anti-shake operation base time and outputting a second angular signal based on a differential between the value held by said hold unit and a value output from said low-pass filter unit based on said low-frequency signal at a time after said anti-shake operation base time, wherein a cutoff frequency of said high-pass filter unit and a cutoff frequency of said low-pass filter unit have the same value; a controller that performs an anti-shake operation based on said first angular signal from said first detector and said second angular signal from said second detector, said controller specifies a hand-shake quantity based on a total value between said first angular signal and said second angular signal, and performs said anti-shake operation based on said total value.