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:
Dec. 06, 2011
Filed:
Jun. 08, 2006
Tomoaki Yamanaka, Utsunomiya, JP;
Tomoaki Yamanaka, Utsunomiya, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
A position control apparatus (optical apparatus) is disclosed which is capable of preventing disadvantages caused by the absence of a dead band while achieving a required accuracy of positional control. The position control apparatus comprises a controller which controls the drive of an object (optical member) so that the position of the object, which detected by a position detector, moves closer to a target position. The controller has a control function which does not drive the object in a case where the difference between the position detected by the position detector and the target position is within a predetermined range, and changes the predetermined range according to control modes relating to the drive of the object.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile