公开(公告)号：US20240259715A1

公开(公告)日：2024-08-01

申请号：US18450813

申请日：2023-08-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Changhyung CHOI ,  Jaehong KIM ,  Jinwoo KIM ,  Daehwa PAIK

IPC: H04N25/78 ,  H03M1/56 ,  H04N17/00

CPC classification number: H04N25/78 ,  H03M1/56 ,  H04N17/002

Abstract: An image sensor is provided. The image sensor according to an example embodiment includes a pixel array including a plurality of pixels, a ramp signal generator configured to generate a ramp signal that increases or decreases with a constant slope, a signal selector configured to output the ramp signal and one of a pixel signal and a test signal output from the pixel array, and a comparison circuit configured to receive the ramp signal and the test signal from the signal selector during a first period, output a first comparison result of the ramp signal and the test signal, receive the pixel signal and the ramp signal from the signal selector during a second period after the first period, and output a second comparison result of the pixel signal and the ramp signal.

公开(公告)号：US20210250530A1

公开(公告)日：2021-08-12

申请号：US17157086

申请日：2021-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daehwa PAIK ,  Seung Hyun LIM ,  Jaehong KIM ,  Keunyung BYUN ,  Jinwoo KIM ,  Sanghyun CHO

IPC: H04N5/355 ,  H04N5/378 ,  H04N5/3745

Abstract: Disclosed is an image sensor that includes a pixel array including first pixels sharing a first floating diffusion region and second pixels sharing a second floating diffusion region, a first analog-to-digital converter, a second analog-to-digital converter, and a switch circuit. In a first mode, the first analog-to-digital converter processes the first pixels, and the second analog-to-digital converter processes the second pixels. In the second mode, the first analog-to-digital converter processes a first image component of a pixel signal of the first pixels, and the second analog-to-digital converter processes a second image component of the pixel signal of the first pixels. An HDR image is implemented based on processing results of the first analog-to-digital converter and the second analog-to-digital converter.