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. 07, 2023
Filed:
Nov. 26, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Kuniaki Sugitani, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A microcomputer estimates information corresponding to an image plane position of an object based on a sequential identification method using a focus detection result. Moreover, the microcomputer predicts information corresponding to a future image plane position of the object based on the estimated information corresponding to the image plane position of the object. The microcomputer controls driving of a focus lens based on the predicted information corresponding to the future image plane position of the object. In accordance with information corresponding to a motion of the object, the microcomputer selects by which of a first Kalman filter and a second Kalman filter the information corresponding to the future image plane position of the object is predicted by using the estimated information corresponding to the image plane position of the object.