公开(公告)号：US20240244343A1

公开(公告)日：2024-07-18

申请号：US18463919

申请日：2023-09-08

申请人： Samsung Electronics Co., Ltd.

发明人： Hyunjong KIM

IPC分类号： H04N25/51 ,  H04N23/71 ,  H04N25/57 ,  H04N25/772

CPC分类号： H04N25/51 ,  H04N23/71 ,  H04N25/57 ,  H04N25/772

摘要： An image sensor includes a pixel configured to output a pixel signal through a column line, a ramp signal generator configured to generate a reference ramp signal having a level which decreases based on a desired slope, a first gain circuit configured to receive the reference ramp signal, and generate a first ramp signal based on the reference ramp signal, the first ramp signal having a different slope than the reference ramp signal, a second gain circuit configured to receive the reference ramp signal, and generate a second ramp signal based on the reference ramp signal, the second ramp signal having a different slope than the first ramp signal, a first comparator configured to generate a first comparison signal based on the first ramp signal and the pixel signal, and a second comparator configured to generate a second comparison signal based on the second ramp signal and the pixel signal.