The present invention provides a camera shake correction device enabled to
quickly correct a camera shake. This device has a sensor for detecting
movement of a camera, a high-pass filter, an amplifier, an A/D converter,
a camera-shake/pan/tilt detection unit, and a switching unit. The filter
includes a circuit having a capacitor and a resistor connected in series.
A reference voltage is inputted to a common ground terminal of the
circuit. An output signal of the sensor is amplified by the amplifier.
The A/D converter converts the amplified signal into a digital value. The
detection unit detects a camera shake or panning/tilting according to the
digital value. When detected, the switching unit turns on a switch
connected to the resistor so as to discharge the capacitor to the
reference voltage.