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. 09, 2025
Filed:
Oct. 21, 2022
Applicant:
Pixart Imaging Inc., Hsin-Chu County, TW;
Inventors:
Meng-Yee Lim, Penang, MY;
Priscilla Tze-Wei Goh, Penang, MY;
Kuan-Choong Shim, Penang, MY;
Gim-Eng Chew, Penang, MY;
Assignee:
PIXART IMAGING INC., Hsin-Chu County, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/26 (2006.01); G01D 5/26 (2006.01);
U.S. Cl.
CPC ...
G01B 11/26 (2013.01); G01D 5/264 (2013.01);
Abstract
There is provided an optical encoding system including a photodiode array and a code disk opposite to each other. The code disk is arranged with multiple code slits at a ring area corresponding to the photodiode array. A length direction of each photodiode of the photodiode array has at least one deviation angle with respect to a length direction of the multiple code slits to reduce the total harmonic distortion in photocurrents.