Control unit for a vibration compensation device for use in an o

Details Control unit for a vibration compensation device for use in an o Control unit for a vibration compensation device for use in an o

1995-01-25

1998-05-12

Rutledge, D.

Photography

Camera shake sensing

With accelerometer

G03B 1700

Patent

active

057520925

ABSTRACT:
A photographic device having a vibration compensation device which drives a correcting lens perpendicular to an optical axis to compensate for vibrations detected by a vibration detection circuit. The analog output of the vibration detection circuit is converted into a digital signal by an A/D converter having at least 10 bits of resolution and at least a 2 ms sampling rate. A one-chip microcomputer calculates the correcting lens target velocity based on the output of the A/D converter. The one-chip microcomputer is provided with a built-in multiplying function able to handle the multiplication of signed 8-bit and 16-bit data.

REFERENCES:
patent: 5398132 (1995-03-01), Otani
patent: 5438360 (1995-08-01), Edwards
patent: 5450126 (1995-09-01), Nishida

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