ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,173, issued on June 23, was assigned to OmniVision Technologies Inc. (Santa Clara, Calif.).
"Adaptive gain readout for voltage domain global shutter" was invented by Zhe Gao (San Jose, Calif.), Tom Freson (Sunnyvale, Calif.), Hyunyong Jung (San Jose, Calif.), Myonglae Chu (San Jose, Calif.) and Ling Fu (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sample and hold circuit includes a pixel level connection coupled to a pixel cell. In a voltage domain global shutter operation, a reset voltage and a signal voltage are sampled and stored in a reset capacitor and a signal capacitor sequentially. In readout, the stored signal voltage ...