公开(公告)号：US20250119062A1

公开(公告)日：2025-04-10

申请号：US18982507

申请日：2024-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyomin AHN ,  Junseok Kim ,  Youngjae Park ,  Jehyung Cho

IPC: H02M3/158 ,  G06F1/26 ,  H02M1/00 ,  H02M1/12 ,  H02M1/42 ,  H02M3/157 ,  H02M7/145

Abstract: A power control method of a power control device, includes: rectifying, by a rectifier, an input current of a system including the power control device; sensing, by a current sensor, a first current through a first switch and a second current through a second switch, wherein the first switch and the second switch are connected to an output of the rectifier; filtering the sensed first current and the sensed second current through a low pass filter; sampling, by a processor, the filtered first current and the filtered second current once per switching cycles of the first switch and the second switch; and performing balancing control based on the sampled first current and the sampled second current such that an average value of the first current through the first switch and the second current through the second switch is uniform or is substantially uniform for a period.

公开(公告)号：USRE49355E1

公开(公告)日：2023-01-03

申请号：US16533895

申请日：2019-08-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae Suh ,  Sung Ho Kim ,  Junseok Kim ,  Eric Hyunsurk Ryu

IPC: G01J1/44 ,  H03F1/30 ,  H03F3/08 ,  G01J1/46

Abstract: A circuit configured to amplify a signal from which an offset is cancelled includes an amplifier including an input stage configured to receive an input signal, the amplifier configured to amplify the input signal and output the amplified signal, and a switch including a transistor configured to reset the amplifier in response to a reset signal, the transistor including a body node connecting the transistor to the circuit, the transistor being configured to form a current path between the body node of the transistor and the input stage of the amplifier.

公开(公告)号：US11388361B2

公开(公告)日：2022-07-12

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 ,  H01L27/146

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：US11202025B2

公开(公告)日：2021-12-14

申请号：US16689535

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 ,  H04N5/341 ,  H05B39/04 ,  G06F16/23 ,  G06F16/583 ,  H04N5/367 ,  H04N5/369 ,  H05B47/11 ,  H05B47/16 ,  H05B47/155

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：US20210067100A1

公开(公告)日：2021-03-04

申请号：US16886899

申请日：2020-05-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungnam Choi ,  Yunjae Suh ,  Masamichi Ito ,  Junseok Kim

IPC: H03F1/26 ,  H03F3/16 ,  H04N5/3745 ,  H04N5/357 ,  H04N5/351

Abstract: An amplifier includes a first capacitor connected between an input node and a floating node, a second capacitor connected between the floating node and an output node, an amplifying element connected between a power supply voltage and the output node and operating in response to a voltage level of the floating node, a current bias source connected between the output node and a ground voltage, a first reset switch connected between the floating node and an intermediate node and operating in response to a reset bias, a second reset switch connected between the intermediate node and the output node and operating in response to the reset bias, and a reset bias generator circuit that outputs the reset bias in response to a reset signal. The reset bias is one of a reset voltage of the intermediate node, the power supply voltage, and the ground voltage.

公开(公告)号：US10649544B2

公开(公告)日：2020-05-12

申请号：US15600135

申请日：2017-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae Suh ,  Keun Joo Park ,  Sung Ho Kim ,  Junseok Kim ,  Hyunsurk Ryu

IPC: G06F3/042 ,  G06F3/03 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/041 ,  G01J1/02 ,  G01J1/42 ,  G02B27/00 ,  G01J1/44

Abstract: Provided is a data output device that includes an event array including a plurality of sensing elements; a first event identifier connected to a first sensing element among the plurality of sensing elements and configured to identify first element information corresponding to the first sensing element in response to the case where an event is detected by the first sensing element; a second event identifier connected to a second sensing element among the plurality of sensing elements and configured to identify second element information corresponding to the second sensing element in response to the case where the event is detected by the second sensing element; and an event output interface configured to output event information based on at least one of the first element information and the second element information.

公开(公告)号：US20200092507A1

公开(公告)日：2020-03-19

申请号：US16689535

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：US12262126B2

公开(公告)日：2025-03-25

申请号：US18218902

申请日：2023-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junseok Kim ,  Raeyoung Kim ,  Keunjoo Park ,  Jaeha Park ,  Junhyuk Park ,  Jiwon Im

IPC: H04N25/47 ,  H04N23/45 ,  H04N25/707 ,  H04N25/766 ,  H04N25/77 ,  H04N25/79

Abstract: A pixel of a vision sensor includes a photoelectric converter configured to convert an optical signal into a current, a current-to-voltage converter configured to convert the current into a first voltage, an amplifier configured to generate an output voltage by amplifying a voltage level of the first voltage, at least one comparator configured to identify whether an event occurs based on comparing the output voltage with at least one threshold voltage, and generate an event signal based on identifying that the event occurs, and at least one counter configured to receive the event signal from the at least one comparator, obtain a count value by counting the event signal as information about an amount of change in illumination, and transmit output data comprising the count value.

公开(公告)号：US11621675B2

公开(公告)日：2023-04-04

申请号：US17467519

申请日：2021-09-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungnam Choi ,  Yunjae Suh ,  Masamichi Ito ,  Junseok Kim

IPC: H04N5/351 ,  H04N5/357 ,  H04N5/374 ,  H04N5/378 ,  H03F1/26 ,  H03F3/16 ,  H03F1/34 ,  H03F3/72 ,  H04N5/3745

Abstract: An amplifier includes a first capacitor connected between an input node and a floating node, a second capacitor connected between the floating node and an output node, an amplifying element connected between a power supply voltage and the output node and operating in response to a voltage level of the floating node, a current bias source connected between the output node and a ground voltage, a first reset switch connected between the floating node and an intermediate node and operating in response to a reset bias, a second reset switch connected between the intermediate node and the output node and operating in response to the reset bias, and a reset bias generator circuit that outputs the reset bias in response to a reset signal. The reset bias is one of a reset voltage of the intermediate node, the power supply voltage, and the ground voltage.

公开(公告)号：US11575849B2

公开(公告)日：2023-02-07

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 ,  H04N5/341 ,  H05B39/04 ,  G06F16/23 ,  G06F16/583 ,  H04N5/367 ,  H04N5/369 ,  H05B47/11 ,  H05B47/16 ,  H05B47/155

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.