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公开(公告)号：US12107553B2
公开(公告)日：2024-10-01
申请号：US18190515
申请日：2023-03-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seungnam Choi , Yunjae Suh , Masamichi Ito , Junseok Kim
IPC: H03F1/26 , H03F1/30 , H03F1/34 , H03F3/08 , H03F3/16 , H03F3/72 , H04N25/50 , H04N25/60 , H04N25/77
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.
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公开(公告)号：US11330219B2
公开(公告)日：2022-05-10
申请号：US16943392
申请日：2020-07-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Byoungmoo Kim , Jaeho Baek , Jongwoo Bong , JOngseok Seo , Donghee Yeo , Seungnam Choi
Abstract: The present disclosure relates to a dynamic vision sensor. The dynamic vision sensor comprises a pixel array, address event representations, and a control logic. The pixel array includes a plurality of dynamic vision sensor (DVS) pixels connected to a plurality of row lines and a plurality of column lines. Each of the DVS pixels is configured to output an event signal in response to a change in light. The address event representations are configured to select one of the plurality of column lines and obtain an event signal output from DVS pixels connected to the selected column line. The control logic is configured to generate image data, including an object capable of generating a movement using an event signal output from each of the plurality of DVS pixels. The control logic divides the plurality of DVS pixels into a plurality of groups and allocates different readout times to each of the plurality of groups.
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3.发明授权公开(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.
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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.
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公开(公告)号：US20210399689A1
公开(公告)日：2021-12-23
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: H03F1/26 , H03F3/16 , H04N5/357 , H04N5/351 , 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.
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Patent Agency Ranking
公开(公告)号：US11153517B2
公开(公告)日：2021-10-19
申请号：US17007320
申请日：2020-08-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jeongseok Kim , Junseok Kim , Yunjae Suh , Seol Namgung , Jongwoo Bong , Seungnam Choi
Abstract: A dynamic vision sensor device includes a photo detector that outputs a detection signal based on light incident from outside, a log amplifier that receives the detection signal from the photo detector through a first node, amplifies the received detection signal, and outputs the amplified detection signal to a second node, a differencing amplifier that outputs a difference signal based on a change in an intensity of the amplified detection signal, and an event determination circuit that determines an event based on the difference signal. The log amplifier includes a first buffer connected between the first node and a third node, an amplifier connected between the third node and the second node, and a feedback circuit connected between the second node and the first node.
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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.
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公开(公告)号：US11114983B2
公开(公告)日：2021-09-07
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: H04N5/351 , H04N5/357 , H04N5/374 , H04N5/335 , H04N5/355 , H03F1/02 , H03F1/26 , H03F3/16 , 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.
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公开(公告)号：US12111206B2
公开(公告)日：2024-10-08
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
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.
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公开(公告)号：US11950003B2
公开(公告)日：2024-04-02
申请号：US17828331
申请日：2022-05-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yunjae Suh , Jongwoo Bong , Seungnam Choi , Junseok Kim
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.
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