公开(公告)号：US11681024B2

公开(公告)日：2023-06-20

申请号：US17947644

申请日：2022-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Yun Kim ,  Min Sun Keel ,  Yeo Myung Kim ,  Hyun Surk Ryu ,  Myung Han Bae

IPC: G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/36 ,  G01S7/481 ,  H04N25/77 ,  H04N25/79 ,  H04N25/704

CPC classification number: G01S7/4863 ,  G01S7/4816 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/36 ,  H04N25/704 ,  H04N25/77 ,  H04N25/79

Abstract: An imaging device is described which, in some examples, includes general pixels and phase difference pixels. The general pixels, when operated by control signals, receive light from a subject and generate currents or voltages that are measured; a depth is estimated based on the measurements. The phase difference pixels generate currents based on a switched charge source. Data obtained from the currents generated by the phase difference pixels is used to adjust the control signals and thereby improve an accuracy of the depth estimation.

公开(公告)号：US12287404B2

公开(公告)日：2025-04-29

申请号：US17720837

申请日：2022-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min Sun Keel ,  Gal Bitan ,  Amit Eisenberg

IPC: G01S17/36 ,  G01C3/08 ,  G01S7/491 ,  G01S17/894 ,  H04N25/00

Abstract: A time of flight (ToF) sensor includes: a first pixel including a first photogate to receive light reflected by an object and generate a first phase signal, and a second photogate to generate a second phase signal having a phase difference of 180 degrees with respect to the first phase signal; a second pixel including a third photogate to receive the reflected light and generate a third phase signal different from the first phase signal and a fourth photogate to generate a fourth phase signal having a phase difference of 180 degrees with respect to the third phase signal; a first signal output unit to output the first and second phase signals; and a second signal output unit to output the third and fourth phase signals, wherein the first, second, third and fourth photogates output the first to fourth phase signals during a frame period.

公开(公告)号：US11378690B2

公开(公告)日：2022-07-05

申请号：US16207933

申请日：2018-12-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min Sun Keel ,  Gal Bitan ,  Amit Eisenberg

IPC: G01S17/36 ,  H04N5/335 ,  G01C3/08 ,  G01S7/491 ,  G01S17/894

Abstract: A time of flight (ToF) sensor includes: a first pixel including a first photogate to receive light reflected by an object and generate a first phase signal, and a second photogate to generate a second phase signal having a phase difference of 180 degrees with respect to the first phase signal; a second pixel including a third photogate to receive the reflected light and generate a third phase signal different from the first phase signal and a fourth photogate to generate a fourth phase signal having a phase difference of 180 degrees with respect to the third phase signal; a first signal output unit to output the first and second phase signals; and a second signal output unit to output the third and fourth phase signals, wherein the first, second, third and fourth photogates output the first to fourth phase signals during a frame period.

公开(公告)号：US20230009187A1

公开(公告)日：2023-01-12

申请号：US17947644

申请日：2022-09-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae Yun Kim ,  Min Sun Keel ,  Yeo Myung Kim ,  Hyun Surk Ryu ,  Myung Han Bae

IPC: G01S7/4863 ,  H04N5/369 ,  H04N5/3745 ,  G01S7/481 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/36

Abstract: An imaging device is described which, in some examples, includes general pixels and phase difference pixels. The general pixels, when operated by control signals, receive light from a subject and generate currents or voltages that are measured; a depth is estimated based on the measurements. The phase difference pixels generate currents based on a switched charge source. Data obtained from the currents generated by the phase difference pixels is used to adjust the control signals and thereby improve an accuracy of the depth estimation.

公开(公告)号：US11454711B2

公开(公告)日：2022-09-27

申请号：US16597434

申请日：2019-10-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Yun Kim ,  Min Sun Keel ,  Yeo Myung Kim ,  Hyun Surk Ryu ,  Myung Han Bae

IPC: G01S7/486 ,  H04N5/369 ,  H04N5/374 ,  G01S7/481 ,  G01S7/4863 ,  H04N5/3745 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/36

Abstract: An imaging device is described which, in some examples, includes general pixels and phase difference pixels. The general pixels, when operated by control signals, receive light from a subject and generate currents or voltages that are measured; a depth is estimated based on the measurements. The phase difference pixels generate currents based on a switched charge source. Data obtained from the currents generated by the phase difference pixels is used to adjust the control signals and thereby improve an accuracy of the depth estimation.