ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,247, issued on April 15, was assigned to Canon K.K. (Tokyo).

"Signal processing device having photodiode" was invented by Tomoya Sasago (Kanagawa, Japan), Shintaro Maekawa (Kanagawa, Japan), Yu Maehashi (Tokyo) and Yasuharu Ota (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing device includes a plurality of pixel signal processing units and a signal line group. The plurality of pixel signal processing units is arranged in a first direction and a second direction, each of the plurality of signal processing units acquiring a digital signal having a plurality of bits based on an output from a corresponding avalanche photodiode. T...