公开(公告)号：US20240363654A1

公开(公告)日：2024-10-31

申请号：US18389071

申请日：2023-11-13

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Mi Ra LEE ,  Kyung-Min KIM ,  Min-Sun KEEL

IPC: H01L27/146 ,  H04N25/77 ,  H04N25/78

CPC classification number: H01L27/14612 ,  H01L27/14636 ,  H01L27/14643 ,  H04N25/77 ,  H04N25/78

Abstract: Provided is a pixel including a first photodiode, a second photodiode having a smaller light receiving area than the first photodiode, a storage capacitor configured to store charges generated by the second photodiode, and a plurality of floating nodes. The pixel according to the present disclosure includes first and second control transistors for transmitting a first voltage or a second voltage to a first node of the storage capacitor in a reset period and an exposure period, and for floating the first node by controlling the first and second control transistors in a readout period.

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：US20210382513A1

公开(公告)日：2021-12-09

申请号：US17150316

申请日：2021-01-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Min KIM ,  Haesick SUL ,  Sunyool KANG ,  Yunhong KIM ,  Seungmin SUH ,  Hyeonji LEE ,  Yunhwan JUNG

IPC: G05F3/26 ,  G05F1/46

Abstract: Disclosed is a bandgap reference circuit, which includes a first current generator that generates a first current proportional to a temperature, a second current generator that outputs a second current obtained by mirroring the first current to a first node at which a reference voltage is formed, a first resistor that is connected with the first node and is supplied with the second current, and a first bipolar junction transistor (BJT) that includes an emitter node connected with the first resistor, a base node supplied with a first power, and a collector node supplied with a second power different from the first power.

公开(公告)号：US20240323569A1

公开(公告)日：2024-09-26

申请号：US18495020

申请日：2023-10-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Yong NA ,  Kyung-Min KIM ,  Young Tae JANG

IPC: H04N25/772 ,  H04N25/78

CPC classification number: H04N25/772 ,  H04N25/78

Abstract: An image sensor includes a pixel having first and second photodiodes, a storage capacitor, an overflow transistor, and a read circuit. The pixel is configured to output a first sub-output signal obtained by converting electric charge generated by the first photodiode during an exposure period with first conversion gain, output a second sub-output signal obtained by converting the electric charge generated by the first photodiode during the exposure period with second conversion gain, output a first reset signal corresponding to the first sub-output signal and a second reset signal corresponding to the second sub-output signal, output a third sub-output signal, which is obtained by converting a portion of electric charge generated by the second photodiode during the exposure period with third conversion gain, output a fourth sub-output signal, obtained by converting the electric charge generated by the second photodiode and stored in the storage capacitor during the exposure period, with fourth conversion gain, and output a third reset signal corresponding to the third sub-output signal and a fourth reset signal corresponding to the fourth sub-output signal.

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：US20210084245A1

公开(公告)日：2021-03-18

申请号：US16906185

申请日：2020-06-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyung-Min KIM ,  Heesung Chae ,  Jaeyoung Bae ,  Sukki Yoon

IPC: H04N5/357 ,  H04N5/3745 ,  H04N3/14

Abstract: An image sensor compensates for noise. The image sensor includes a pixel array that includes a common monitor output line, a first monitoring pixel outputting a first monitoring signal, a second monitoring pixel outputting a second monitoring signal, and an active pixel configured to output a sensing signal based on an incident light. The image circuit also includes a binning circuit that receives the first and second monitoring signals through the common monitor output line and generates an average monitoring signal by performing binning on the first and second monitoring signals, and an analog-to-digital converter that detects an alternating current (AC) component of the average monitoring signal and couples the sampled AC component of the average monitoring signal to the sensing signal, thereby compensating for noise.