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:
Nov. 24, 2020
Filed:
Jan. 17, 2018
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Takayuki Kondo, Chino, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/347 (2006.01); G06T 7/73 (2017.01); B25J 13/08 (2006.01); B25J 9/00 (2006.01); B25J 9/04 (2006.01); B25J 19/02 (2006.01); G01D 5/244 (2006.01); G05B 19/12 (2006.01);
U.S. Cl.
CPC ...
G01D 5/34707 (2013.01); B25J 9/0009 (2013.01); B25J 9/044 (2013.01); B25J 13/088 (2013.01); B25J 13/089 (2013.01); B25J 19/022 (2013.01); G01D 5/24452 (2013.01); G01D 5/3473 (2013.01); G01D 5/34792 (2013.01); G06T 7/74 (2017.01); G05B 19/124 (2013.01); G06T 2207/30204 (2013.01);
Abstract
An encoder includes a base portion, a rotation portion that is provided to be rotatable about a rotation axis with respect to the base portion, a mark that is disposed around the rotation axis on the rotation portion, an imaging element that is disposed in the base portion and images the marks, a storage portion that stores a reference image, and a determination portion that performs template matching on the mark imaged by the imaging element by using the reference image, so as to determine a rotation state of the rotation portion with respect to the base portion.