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. 17, 2024
Filed:
Jan. 27, 2021
Applicant:
Minebea Mitsumi Inc., Nagano, JP;
Inventor:
Yujin Ishi, Nagano, JP;
Assignee:
MINEBEA MITSUMI Inc., Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/30 (2006.01); G01D 5/14 (2006.01);
U.S. Cl.
CPC ...
G01B 7/30 (2013.01); G01D 5/145 (2013.01); G01D 2205/26 (2021.05); G01D 2205/28 (2021.05);
Abstract
To correct an error based on a position of a main spindle. An absolute encoder includes a magnet as a permanent magnet provided at a leading end side of a first worm gear part, an angle sensor as an angle sensor configured to detect a rotation angle of the first worm gear part corresponding to a change in a magnetic flux generated from the magnet, a microcomputer configured to output angle position information of a first driving gear in a stopped state, wherein the microcomputer outputs angle error information of the first driving gear corresponding to the angle position information.