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. 03, 2026
Filed:
Mar. 25, 2025
Pixart Imaging Inc., Hsin-Chu City, TW;
Feng-Chi Liu, Hsin-Chu City, TW;
PixArt Imaging Inc., Hsin-Chu City, TW;
Abstract
An optical tracking device includes a tracking module and a rotation shaft. The tracking module includes a light source and an optical sensor. The rotation shaft is disposed corresponding to the tracking module, and includes a central axis, an outer surface, and a first end and a second end opposite to each other. The central axis penetrates through centers of the first end and the second end, the outer surface is connected between the first end and the second end and facing the tracking module, and an included angle formed between a normal planar vector of at least a portion of the outer surface and an axial direction of the central axis is greater than or smaller than ninety degrees. An angle value of the included angle is designed based on a field of illumination of the light source.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile