US Patent Issued to PIXART IMAGING on July 29 for "Optical sensing system and optical sensing method" (Taiwanese Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,475, issued on July 29, was assigned to PIXART IMAGING INC. (Hsin-Chu, Taiwan).

"Optical sensing system and optical sensing method" was invented by Guo-Zhen Wang (Hsin-Chu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensing system and an optical sensing method are provided. The system includes a bright-field light source, a dark-field light source, an optical detecting circuit, and a processing circuit. The processing circuit performs a floor type detection process, including: controlling the dark-field light source to provide dark-field illumination; receiving, by the optical detecting circuit, scattered lights of the dark-fie...