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:
Sep. 03, 2019
Filed:
Jan. 17, 2018
Seiko Epson Corporation, Tokyo, JP;
Daiki Tokushima, Azumino, JP;
Seiko Epson Corporation, , JP;
Abstract
A robot includes: a base; a robot arm rotatably provided around a rotation axis relative to the base; a mark which rotates in accordance with rotation of the robot arm; a capturing element which captures the mark; a memory which stores a reference image therein; and a determination section which determines a rotation state of the robot arm by template matching by subpixel estimation using the reference image and an image captured by the capturing element, in which a relationship of 2R/B≤L/X≤100R/B is satisfied when a viewing field size per one pixel of the capturing element is B, a distance between the rotation axis and the center of the mark is R, the maximum distance between the rotation axis and a tip of the robot arm is L, and repetition positioning accuracy of the tip of the robot arm is X.