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:
Feb. 05, 2002
Filed:
Nov. 18, 1997
Yasuhiko Shiomi, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image blur prevention apparatus adapted to a camera having an exposure portion, includes a first image blur detecting device that detects an image blur state of the camera, a second image blur detecting device that detects an image blur state of an optical image of the camera, and outputs a detection signal, and a determining portion that determines a photographing operation state of the camera. A calculating device, having a first calculation program and a second calculation program, selects one calculation program from among the first and second calculating programs based on a determination result of the determining portion and based on the detection signal of the second image blur detection device, and calculates a predicted blur signal in accordance with the selected calculation program. An image blur prevention device then performs an image blur prevention operation based on the detection signal of the first image blur detecting device and the predicted blur signal calculated by the calculating device, during a light exposing operation onto the exposure portion of the camera.