The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1998
Filed:
Jan. 25, 1995
Applicant:
Inventors:
Sueyuki Ohishi, Tokyo, JP;
Nobuhiko Terui, Ichikawa, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396 53 ;
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.