公开(公告)号：US20220377273A1

公开(公告)日：2022-11-24

申请号：US17878285

申请日：2022-08-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Yong KIM ,  Kyung-Min KIM ,  Hyuk OH ,  Hyeok Jong LEE ,  Seung Hoon JUNG ,  Woong JOO ,  Hee Sung CHAE

IPC: H04N5/378 ,  H04N5/369

Abstract: An analog-digital converter includes a count code generator to receive a code generation clock signal from a clock signal generator and to output a count code according to the code generation clock signal, a latch to latch the count code, an operating circuit to generate a count value of the count code and to output a digital signal based on the count value, and a transfer controller to transfer the count code from the latch to the operating circuit. The transfer controller determines whether to transfer the count code according to a logic level of a count enable clock signal generated from the clock signal generator.

公开(公告)号：US20220174230A1

公开(公告)日：2022-06-02

申请号：US17393803

申请日：2021-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yun Hong KIM ,  Kyung-Min KIM ,  Hee Sung CHAE

IPC: H04N5/357

Abstract: An image sensor includes a pixel configured to generate a pixel signal, using an analog signal processing voltage, a ramp signal generator configured to generate a ramp signal, using the analog signal processing voltage, a bias voltage generator configured to generate a bias voltage, using the analog signal processing voltage, and a noise compensator configured to generate a noise component, using a digital signal processing voltage and the analog signal processing voltage, and add the generated noise component to the generated bias voltage. The image sensor further includes a conversion circuit configured to generate a reference voltage, based on the generated ramp signal and the bias voltage to which the noise component is added, and generate an image signal by performing analog-to-digital conversion on the generated pixel signal, based on the generated reference voltage.

公开(公告)号：US20200260024A1

公开(公告)日：2020-08-13

申请号：US16543016

申请日：2019-08-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Tae KIM ,  Kyung Min KIM ,  Yun Hwan JUNG ,  Hee Sung CHAE

IPC: H04N5/357 ,  H04N5/378 ,  H04N5/374 ,  H01L27/146 ,  H03M1/12

Abstract: A pulse generator of an image sensor includes a delay cell including a plurality of transistors arranged in series between a power voltage and a ground, a stabilization capacitor, and a stabilization switch. The power voltage is supplied to a first terminal of a first transistor disposed first among the plurality of transistors, and a gate terminal of the first transistor is connected to a first node. An input voltage is supplied to a gate terminal of an n-th transistor disposed last among the plurality of transistors, and a ground voltage is supplied to a first terminal of the n-th transistor. The stabilization switch is disposed between a reference voltage input terminal providing a reference voltage and the first node. The stabilization switch is turned on by an input bias control signal to supply the reference voltage to the first node.