公开(公告)号：US20230011310A1

公开(公告)日：2023-01-12

申请号：US17857812

申请日：2022-07-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yunhong KIM ,  Yunhwan JUNG ,  Heesung CHAE ,  Mooyoung KIM ,  Haesick SUL

IPC: H04N5/378 ,  H04N5/361 ,  H04N5/369

Abstract: An image sensor may include a pixel array a pixel array including an active pixel and an optical black pixel, the active pixel configured to generate a first pixel signal, and the optical black pixel configured to generate a second pixel signal, a first biasing circuit configured to bias the first pixel signal based on a first bias voltage, a first analog-to-digital converter configured to convert the biased first pixel signal into a first digital signal, a second biasing circuit configured to bias the second pixel signal based on a second bias voltage, and a second analog-to-digital converter configured to convert the biased second pixel signal into a second digital signal, the second digital signal configured to generate smaller random noise than the first analog-to-digital converter.

公开(公告)号：US20220038651A1

公开(公告)日：2022-02-03

申请号：US17198355

申请日：2021-03-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunyool KANG ,  Kyungtae KIM ,  Yunhwan JUNG ,  Yongjun CHO ,  Heesung CHAE

IPC: H04N5/3745 ,  H04N5/369 ,  H04N5/378

Abstract: An image sensor includes a first amplifier comparing and amplifying a first voltage signal received from a first column line, and a ramp signal; a second amplifier amplifying an output of the first amplifier; a third amplifier comparing and amplifying a second voltage signal received from a second column line, and the ramp signal; and a fourth amplifier amplifying an output of the third amplifier, wherein the second amplifier and the fourth amplifier output a decision signal at different points in time by dummy switch control split.

公开(公告)号：US20230179884A1

公开(公告)日：2023-06-08

申请号：US17893675

申请日：2022-08-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongjun CHO ,  Sunyool KANG ,  Yunhong KIM ,  Heesung CHAE

IPC: H04N5/369 ,  H01L27/146 ,  H04N5/3745

CPC classification number: H04N5/3698 ,  H01L27/14612 ,  H01L27/14643 ,  H04N5/37455

Abstract: Disclosed is an image sensor device which includes an image pixel that outputs a reset voltage and a first data voltage through a data line, and a voltage hold circuit that is connected with the data line, stores a first voltage based on the reset voltage, and provides the data line with a second voltage based on the first voltage.

公开(公告)号：US20210335869A1

公开(公告)日：2021-10-28

申请号：US17119330

申请日：2020-12-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yunhong KIM ,  Yunhwan JUNG ,  Heesung CHAE

IPC: H01L27/146 ,  H04N5/378

Abstract: An image sensor includes a substrate including an active pixel region and an inactive pixel region, having a smaller area than the active pixel region; a plurality of active pixels in the active pixel region, each of the plurality of active pixels including a first transfer transistor, a first reset transistor, a first driving transistor, and a first selection transistor; and a plurality of inactive pixels in the inactive pixel region, each of the plurality of inactive pixels including a second transfer transistor, a second reset transistor, a second driving transistor, a second selection transistor, and a switch transistor connected to a node between the second driving transistor and the second select transistor. The plurality of switch transistors, included in the plurality of inactive pixels, are connected to each other by a connection wiring.

公开(公告)号：US20240048870A1

公开(公告)日：2024-02-08

申请号：US18354162

申请日：2023-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunyool KANG ,  Haesick SUL ,  Yunhwan JUNG ,  Yongjun CHO ,  Heesung CHAE

IPC: H04N25/772 ,  H03M1/34 ,  H03M1/12

CPC classification number: H04N25/772 ,  H03M1/34 ,  H03M1/1205

Abstract: Provided are analog-digital converting circuits including a comparator, and an image sensor. The analog-digital converting circuit include a counter and a comparator, the comparator including a first P-type transistor including a gate connected to a first input node of the comparator, a second P-type transistor including a gate connected to a second input node of the comparator, a first N-type transistor including a gate connected to the first input node and a drain connected to the first P-type transistor, a second N-type transistor including a gate connected to the second input node and a drain connected to the second P-type transistor, and a transistor including a gate connected to the drain of the first N-type transistor and a source to which ground voltage or power supply voltage is applied.

公开(公告)号：US20210067723A1

公开(公告)日：2021-03-04

申请号：US16838483

申请日：2020-04-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungtae KIM ,  Yunhwan JUNG ,  Heesung CHAE ,  Sukki YOON

IPC: H04N5/376 ,  H04N5/374

Abstract: An image sensor includes a pixel array including pixels that are arranged in a matrix and respectively generate pixel signals, a row driver to drive the plurality of pixels row by row, a timing generator to generate a clock signal and address signals, a column driver to generate a plurality of column selection signals sequentially activated in response to the clock signal and the address signals, and a column array to receive the pixel signals through a plurality of column lines, perform an analog-to-digital conversion on the pixel signals, and sequentially output pixel data values through an output buffer. The column driver may include a clock tree including first delay elements and second delay elements to generate a plurality of delay clock signals, and a decoding circuit to generate the plurality of column selection signals.