公开(公告)号：US20210185259A1

公开(公告)日：2021-06-17

申请号：US16992330

申请日：2020-08-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seol NAMGUNG ,  Seungnam CHOI ,  Jeongseok KIM ,  Junseok KIM ,  Jongwoo BONG ,  Yunjae SUH

IPC: H04N5/378 ,  H04N5/345 ,  H04N5/3745 ,  H04N5/357 ,  G06T5/50

Abstract: An imaging device, image sensor and method are provided. A first scanning operation is performed on a pixel array in a first direction by a first selection circuit to generate first frame data by first readout circuit. A second scanning operation is performed on the pixel array in a second direction different from the first direction to generate second frame data by a second selection circuit. The first and second frame data are merged into single frame data by an image signal processor.

公开(公告)号：US20180146149A1

公开(公告)日：2018-05-24

申请号：US15725864

申请日：2017-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae SUH ,  Sung Ho KIM ,  Junseok KIM ,  Hyunsurk RYU

IPC: H04N5/361 ,  H01L27/146

CPC classification number: H04N5/361 ,  G01J1/44 ,  G01J2001/446 ,  H01L27/14605 ,  H01L27/14609 ,  H01L27/14643 ,  H04N5/35518 ,  H04N5/374

Abstract: An event-based sensor includes a dummy pixel that generates a dark current, a current mirror that generates a mirrored current using the dark current, and a sensing pixel that generates a sense current based on an intensity of incident light, and outputs an activation signal, indicating whether a variation in the incident light is sensed, based on a light current that is obtained by subtracting the mirrored current from the sense current.

公开(公告)号：US20180059706A1

公开(公告)日：2018-03-01

申请号：US15675109

申请日：2017-08-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Ho KIM ,  Junseok KIM ,  Yunjae SUH

IPC: G05F3/20 ,  G05F3/24 ,  G05F3/26 ,  H02M1/08 ,  G05F1/46 ,  H03H11/26 ,  H03K5/133 ,  H02M7/217 ,  H03L7/081

Abstract: A current control circuit and a bias generator including the current control circuit are provided. The bias generator may include a current mirror circuit configured to generate one of a first current and a second current based on a reference current; a switch circuit configured to transfer one of the first current and the second current to a variable resistor; an operational amplifier including a first input node connected to the switch circuit, a second input node that receives a reference voltage, and an output node that outputs a bias voltage; and the variable resistor connected between the first input node and the output node of the operational amplifier. By switching operation of the switch circuit, a direction in which the first current flows in the variable resistor may be different from a direction in which the second current flows in the variable resistor.

公开(公告)号：US20250063271A1

公开(公告)日：2025-02-20

申请号：US18933217

申请日：2024-10-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keun Joo PARK ,  Junseok KIM ,  Yohan ROH ,  Hyunsurk RYU ,  Jooyeon WOO ,  Hyunku LEE

IPC: H04N25/77 ,  G06F16/23 ,  G06F16/583 ,  H04N25/40 ,  H04N25/683 ,  H04N25/772 ,  H04N25/79 ,  H05B39/04 ,  H05B47/11 ,  H05B47/155 ,  H05B47/16

Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.

公开(公告)号：US20240365022A1

公开(公告)日：2024-10-31

申请号：US18768535

申请日：2024-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae SUH ,  Junseok KIM ,  Hyunsurk RYU ,  Keun Joo PARK ,  Masamichi ITO

IPC: H04N25/75 ,  H04N25/47 ,  H04N25/77

CPC classification number: H04N25/75 ,  H04N25/47 ,  H04N25/77

Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.

公开(公告)号：US20240205561A1

公开(公告)日：2024-06-20

申请号：US18543583

申请日：2023-12-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bongki SON ,  Junseok KIM ,  Keunjoo PARK

IPC: H04N25/766 ,  H04N25/771 ,  H04N25/778

CPC classification number: H04N25/766 ,  H04N25/771 ,  H04N25/778

Abstract: Provided is a dynamic vision sensor. The dynamic vision sensor includes: a pixel array including a plurality of pixels arranged in a plurality of rows and a plurality of columns, wherein each of the plurality of pixels is configured to detect a change in intensity of incident light; and a readout circuit configured to simultaneously select first pixels of first target columns among the plurality of columns in a first section of a binning operation, and generate and output first binning event signals of first binning pixel groups based on first event signals simultaneously output from the first pixels.

公开(公告)号：US20220373389A1

公开(公告)日：2022-11-24

申请号：US17729320

申请日：2022-04-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seol NAMGUNG ,  Jeongseok KIM ,  Yunjae SUH ,  Junseok KIM ,  Jongwoo BONG ,  Seungnam CHOI

IPC: G01J1/44

Abstract: A vision sensor and an operating method of the vision sensor are provided. The vision sensor includes a pixel array including a plurality of pixels arranged in a form of a matrix; and a bias voltage generation circuit configured to provide a test bias voltage to the pixel array, wherein each of the plurality of pixels includes a sensing circuit configured to sense light and generate a first output voltage, wherein the first output voltage changes as the test bias voltage changes within a specific frame.

公开(公告)号：US20200236311A1

公开(公告)日：2020-07-23

申请号：US16839812

申请日：2020-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae SUH ,  Sung Ho KIM ,  Junseok KIM ,  Hyunsurk RYU

IPC: H04N5/361 ,  G01J1/44 ,  H01L27/146 ,  H04N5/374

Abstract: An event-based sensor includes a dummy pixel that generates a dark current, a current mirror that generates a mirrored current using the dark current, and a sensing pixel that generates a sense current based on an intensity of incident light, and outputs an activation signal, indicating whether a variation in the incident light is sensed, based on a light current that is obtained by subtracting the mirrored current from the sense current.

公开(公告)号：US20200092508A1

公开(公告)日：2020-03-19

申请号：US16689579

申请日：2019-11-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keun Joo PARK ,  Junseok KIM ,  Yohan ROH ,  Hyunsurk RYU ,  Jooyeon WOO ,  Hyunku LEE

IPC: H04N5/3745 ,  G06F16/583 ,  H04N5/367 ,  H04N5/341 ,  H05B39/04 ,  G06F16/23

Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.

公开(公告)号：US20200084403A1

公开(公告)日：2020-03-12

申请号：US16552299

申请日：2019-08-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae SUH ,  Junseok KIM ,  Hyunsurk RYU ,  Keun Joo PARK ,  Masamichi ITO

IPC: H04N5/378 ,  H04N5/3745

Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.