ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,599, issued on May 19, was assigned to PixArt Imaging Inc. (Hsin-Chu City, Taiwan).

"Optical navigation device and method capable of mitigating fixed pattern noise and temporal noise to improve tracking performance" was invented by Kevin Len-Li Lim (Penang, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of an optical navigation device to be coupled to a host device includes: providing a pixel array circuit to capture and generate an image frame; performing a bandpass filter operation upon the image frame to remove a low-frequency image noise and a high-frequency image noise from the image frame so as to generate a bandpass-filtered ...