US Patent Issued to PixArt Imaging on May 27 for "Optical sensor which can reduce power noise and power noise reduction method" (Taiwanese Inventor)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,457, issued on May 27, was assigned to PixArt Imaging Inc. (Hsin-Chu, Taiwan).

"Optical sensor which can reduce power noise and power noise reduction method" was invented by En-Feng Hsu (Hsin-Chu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensor, comprising: a sensor array, comprising a bright region with at least one bright pixel and comprising a dark region with at least one dark pixel, wherein the dark pixel generates a sensing signal that is non-relevant to light emitted to the sensor array; a power noise detection circuit, configured to compute a power noise level of the sensing signal from the dark pixel; and a power noi...