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:
Dec. 04, 2018
Filed:
Jul. 29, 2016
Applicant:
National Tsing Hua University, Hsinchu, TW;
Inventors:
Cheng-Yi Lin, Taoyuan, TW;
Heng-Sheng Hsiao, Taipei, TW;
Sheng-Ching Wang, Miaoli, TW;
Tsung-Shune Chin, Hsinchu County, TW;
Cheng-Kuo Sung, Hsinchu, TW;
Jen-Yuan Chang, Hsinchu County, TW;
Assignee:
National Tsing Hua University, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/165 (2006.01); G01D 5/245 (2006.01);
U.S. Cl.
CPC ...
G01D 5/2452 (2013.01);
Abstract
An absolute position detecting device and method are provided. The absolute position detecting device utilizes the incremental magnetization on a magnetic encoding ruler with two different pole widths, such that elliptical Lissajous curves may be obtained by magnetoresistive sensors. The absolute position may be obtained by determining the region of the signals on the ellipses read by the magnetoresistive sensors.