ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,338, issued on Sept. 29, was assigned to OMNIVISION TECHNOLOGIES INC. (Santa Clara, Calif.).

"Image sensor with in-pixel background subtraction and motion detection" was invented by Zhiyong Zhan (Fremont, Calif.), Tongtong Yu (Fremont, Calif.), Zheng Yang (San Jose, Calif.) and Wei Deng (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An imaging system includes a pixel array configured to generate image charge voltage signals in response to incident light received from an external scene. An infrared illumination source is deactivated during the capture of a first image of the external scene and activated during the capture of a sec...