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:
Mar. 01, 2011
Filed:
Jul. 02, 2007
Kazunori Ban, Yamanashi, JP;
Katsutoshi Takizawa, Tokyo, JP;
Gang Shen, Yamanashi, JP;
Fanuc Ltd, Minamitsuru-gun, Yamanashi, JP;
Abstract
A measuring system and a calibration method for automatically calculating errors of mechanical parameters with high accuracy and correcting the parameters, by means of a relatively small and inexpensive measuring device. In relation to a plurality of positions of measurement, a robot is automatically moved such that, on a light receiving surface of a camera, the distance between the centers of an ellipse indicating a mark of a target and a circle of representing the shape of the target, and the difference between the length of the long axis of the ellipse and the diameter of the circle are within a predetermined error range.