ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,745,916, issued on Sept. 29, was assigned to KINGFAR INTERNATIONAL INC. (Beijing).
"Optical signal processing method and system, electronic device" was invented by Qichao Zhao (Beijing), Ran Yang (Beijing) and Qingju Wang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system, an electronic device and an optical signal processing method including receiving optical signals by a spectrum analyzer, which outputs a first wavelength range of the optical signals, primary filtering the first wavelength range based on a pre-set wavelength threshold of red light to obtain a second wavelength range, accessing wavelength ranges of ambient light acquired...