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. 04, 2014
Filed:
Mar. 14, 2012
Kenichi Miyasako, Tokyo, JP;
Kenichi Miyasako, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A direction instructing operation unit instructs a control unit to change a direction of a change in the photographic screen range. First motor drives a compensation optical system and second motor drives a compensation optical system in accordance with the control command given by the control unit. When the direction along which framing adjustment has been instructed by the direction instructing operation unit matches neither the drive direction of the first motor nor the drive direction of the second motor for driving the compensation optical system, the control unit matches a drive start time and a drive end time of both the first motor and the second motor, and then controls the ratio of the speed of the second drive unit to the speed of the first drive unit at a constant level to thereby control the moving direction of the photographic screen range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile