Patents by Inventor Yunjae SUH

Yunjae SUH has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220021835
    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.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Junseok KIM, Hyunsurk RYU, Keun Joo PARK, Masamichi ITO
  • Publication number: 20210399689
    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.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 23, 2021
    Inventors: Seungnam Choi, Yunjae Suh, Masamichi Ito, Junseok Kim
  • Patent number: 11153517
    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.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 19, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeongseok Kim, Junseok Kim, Yunjae Suh, Seol Namgung, Jongwoo Bong, Seungnam Choi
  • Patent number: 11140349
    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.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Junseok Kim, Hyunsurk Ryu, Keun Joo Park, Masamichi Ito
  • Patent number: 11125614
    Abstract: A sensor configured for sensing motion information, illumination information, and proximity information is provided. The sensor includes a light sensing module configured to sense a change in an intensity of light, a filtering module configured to filter light incident to the light sensing module by using a plurality of filters, and a processor configured to process information associated with an intensity of light passing through the filters.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 21, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho Kim, Junseok Kim, Jun Haeng Lee, Eric Hyunsurk Ryu, Yunjae Suh
  • Patent number: 11122224
    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.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Sung Ho Kim, Junseok Kim, Hyunsurk Ryu
  • Patent number: 11114983
    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.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 7, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seungnam Choi, Yunjae Suh, Masamichi Ito, Junseok Kim
  • Publication number: 20210250528
    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.
    Type: Application
    Filed: August 31, 2020
    Publication date: August 12, 2021
    Inventors: JEONGSEOK KIM, JUNSEOK KIM, YUNJAE SUH, SEOL NAMGUNG, JONGWOO BONG, SEUNGNAM CHOI
  • Publication number: 20210185259
    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.
    Type: Application
    Filed: August 13, 2020
    Publication date: June 17, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seol NAMGUNG, Seungnam CHOI, Jeongseok KIM, Junseok KIM, Jongwoo BONG, Yunjae SUH
  • Publication number: 20210067100
    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.
    Type: Application
    Filed: May 29, 2020
    Publication date: March 4, 2021
    Inventors: Seungnam Choi, Yunjae Suh, Masamichi Ito, Junseok Kim
  • Publication number: 20200236311
    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.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Sung Ho KIM, Junseok KIM, Hyunsurk RYU
  • Patent number: 10649544
    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.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: May 12, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Keun Joo Park, Sung Ho Kim, Junseok Kim, Hyunsurk Ryu
  • Publication number: 20200084403
    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.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 12, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Junseok KIM, Hyunsurk RYU, Keun Joo PARK, Masamichi ITO
  • Patent number: 10444787
    Abstract: A data communication device is provided. The data communication device includes a data array configured to receive pieces of data, register cells, each register cell of the registers cells being configured to be activated based on a respective one of the pieces of data, and an outputter configured to output information corresponding to a register cell that is activated among the register cells.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Moradi Saber, Junseok Kim, Sung Ho Kim, Eric Hyunsurk Ryu
  • Patent number: 10423187
    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.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho Kim, Junseok Kim, Yunjae Suh
  • Publication number: 20190277690
    Abstract: A sensor configured for sensing motion information, illumination information, and proximity information is provided. The sensor includes a light sensing module configured to sense a change in an intensity of light, a filtering module configured to filter light incident to the light sensing module by using a plurality of filters, and a processor configured to process information associated with an intensity of light passing through the filters.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho KIM, Junseok Kim, Jun Haeng Lee, Eric Hyunsurk Ryu, Yunjae Suh
  • Patent number: 10337914
    Abstract: A sensor configured for sensing motion information, illumination information, and proximity information is provided. The sensor includes a light sensing module configured to sense a change in an intensity of light, a filtering module configured to filter light incident to the light sensing module by using a plurality of filters, and a processor configured to process information associated with an intensity of light passing through the filters.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho Kim, Junseok Kim, Jun Haeng Lee, Eric Hyunsurk Ryu, Yunjae Suh
  • Patent number: 10161789
    Abstract: An event-based sensor and a pixel of the event-based sensor are provided. The event-based sensor includes a pixel array including pixels, a selection circuit configured to select a part of the pixels, an event circuit configured to generate an event signal indicating an active pixel sensing an event among the selected part of the pixels, based on output signals of the selected part of the pixels, and an output circuit configured to output information indicating the active pixel based on the event signal.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Junseok Kim, Sung Ho Kim, Eric Hyunsurk Ryu
  • Publication number: 20180146149
    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.
    Type: Application
    Filed: October 5, 2017
    Publication date: May 24, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Sung Ho KIM, Junseok KIM, Hyunsurk RYU
  • Publication number: 20180059706
    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.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho KIM, Junseok KIM, Yunjae SUH