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. 20, 2022
Filed:
Dec. 01, 2020
Applicant:
National Chung-hsing University, Taichung, TW;
Inventor:
Hsi-Fu Shih, Taichung, TW;
Assignee:
NATIONAL CHUNG-HSING UNIVERSITY, Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/347 (2006.01); G01D 5/38 (2006.01);
U.S. Cl.
CPC ...
G01D 5/3473 (2013.01); G01D 5/34792 (2013.01); G01D 5/38 (2013.01);
Abstract
An optical rotary encoder includes a code disk, a laser source unit, a focusing unit and a photodetector array. The focusing unit converts the laser beam emitted by the laser source unit into incident laser beams that have a plurality of light points respectively on code tracks of the code disk, such that the code disk modulates the incident laser beams to form optical code signals. The photodetector array receives and converts the optical code signals into electric code signals.