ALEXANDRIA, Va., April 21 -- United States Patent no. 12,610,159, issued on April 21, was assigned to OMNIVISION TECHNOLOGIES INC. (Santa Clara, Calif.).
"Image sensor and readout method for pixel circuit thereof" was invented by Woon Il Choi (Sunnyvale, Calif.) and Keiji Mabuchi (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image sensor and a readout method for a pixel circuit thereof are provided. In the pixel circuit, a first transistor is coupled between a floating diffusion portion and a first capacitor, and a second transistor is coupled between the first transistor and a second capacitor. A readout cycle of the pixel circuit includes a high conversion gain (HCG) readout operatio...