ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,794, issued on May 6, was assigned to OMNIVISION TECHNOLOGIES INC. (Santa Clara, Calif.).
"Fixed pattern noise reduction in image sensors operated with pulsed illumination" was invented by Andreas Suess (San Jose, Calif.) and Tomas Geurts (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Fixed pattern noise (FPN) reduction techniques in image sensors operated with pulse illumination are disclosed herein. In one embodiment, a method includes, during a first sub-exposure period of a frame, (a) operating a first tap of a pixel to capture a first signal corresponding to first charge at a first floating diffusion, the first charge corre...