US Patent Issued to PixArt Imaging on Nov. 3 for "Optical tracking device" (Taiwanese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,570, issued on Nov. 3, was assigned to PixArt Imaging Inc. (Hsin-Chu City, Taiwan).

"Optical tracking device" was invented by Feng-Chi Liu (Hsin-Chu City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "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...