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：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：US20220394195A1

公开(公告)日：2022-12-08

申请号：US17828331

申请日：2022-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yunjae SUH ,  Jongwoo BONG ,  Seungnam CHOI ,  Junseok KIM

IPC: H04N5/341 ,  H04N5/378 ,  H04N5/374 ,  H04N5/235 ,  G06T7/20

Abstract: Provided are a vision sensor, an image processing device including the vision sensor, and an operating method of the vision sensor. The vision sensor includes a plurality of pixels arranged in a matrix form, wherein each of the plurality of pixels includes: a sensing circuit configured to output an output voltage by sensing a change of light; a comparison circuit configured to output a comparison signal indicating whether an event has occurred by comparing the output voltage to an event threshold; and an event detection circuit configured to generate internal event signals by sampling the comparison signal at each of a plurality of sampling time points, and configured to output a valid event signal based on the internal event signals.

公开(公告)号：US20220239859A1

公开(公告)日：2022-07-28

申请号：US17494243

申请日：2021-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungnam CHOI ,  Jongwoo BONG ,  Junseok KIM ,  Yunjae SUH

IPC: H04N5/3745

Abstract: A vision sensor including a plurality of pixels configured to sense intensity of incident light, and to output request signals representing an occurrence status of an event; and an event detection circuit configured to generate event data including information about a pixel at which the event occurs, based on the request signals, wherein each pixel of the plurality of pixels includes: a photoelectric conversion device configured to generate a current corresponding to the incident light; a current-to-voltage converter configured to generate a voltage corresponding to the current; an amplifier configured to amplify a variation amount of the generated voltage to generate an output voltage; an event storage configured to generate an event signal corresponding to a comparison between the output voltage and a threshold voltage, and to hold the event signal using cross-coupled transistors; and an output logic configured to output a request signal based on the event signal.