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. 24, 2019
Filed:
Jul. 31, 2018
Fanuc Corporation, Yamanashi, JP;
Kyouhei Kokubo, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A calibration system includes a mark for a robot including a first member and second members to that are connected to each other so as to allow relative movement via a joint shaft driven by a motor and also including a rotation-angle sensor that outputs a signal corresponding to a rotation angle of the motor, the mark being fixed to one of the second members; a camera that is disposed outside the robot and that acquires images of the mark; and a difference detection unit that detects the difference between signals output from the rotation-angle sensor at the timings of acquisition of the individual images acquired by the camera when the positions of the mark in the images are caused to substantially match each other before and after reinstallation or replacement of a part.