Patents by Inventor Keun-Joo Park

Keun-Joo Park 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: 20240089471
    Abstract: An operation method of an image signal processing device includes receiving a raw pixel code from an external image sensor device including an image pixel, generating a non-linear pixel code by performing non-linear mapping on the raw pixel code, and outputting a downsized pixel code obtained by performing a masking operation on bit positions including a first bit position corresponding to a most significant bit of the non-linear pixel code and a second bit position corresponding to a least significant bit of the non-linear pixel code. An amplitude of the raw pixel code is linear to illuminance of a light incident onto the image pixel, an amplitude of the non-linear pixel code is non-linear to the amplitude of the raw pixel code, and the non-linear pixel code has a first code length, and the downsized pixel code has a second code length smaller than the first code length.
    Type: Application
    Filed: May 22, 2023
    Publication date: March 14, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun Joo PARK, Junhyuk PARK, Jiwon IM, Junseok KIM
  • Patent number: 11917315
    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: January 23, 2023
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Junseok Kim, Hyunsurk Ryu, Keun Joo Park, Masamichi Ito
  • Publication number: 20240064428
    Abstract: An image adjustment apparatus includes a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: November 1, 2023
    Publication date: February 22, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo PARK, Hyun Surk RYU, Tae Chan KIM, Jun Haeng LEE
  • Publication number: 20240064429
    Abstract: An image adjustment apparatus includes a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: November 1, 2023
    Publication date: February 22, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Keun Joo PARK, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 11863894
    Abstract: An image adjustment apparatus includes a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Publication number: 20230247321
    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: April 7, 2023
    Publication date: August 3, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Junseok KIM, Hyunsurk RYU, Keun Joo PARK, Masamichi ITO
  • Publication number: 20230224606
    Abstract: An image adjustment apparatus includes a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 13, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo PARK, Hyun Surk RYU, Tae Chan KIM, Jun Haeng LEE
  • Publication number: 20230156368
    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.
    Type: Application
    Filed: January 5, 2023
    Publication date: May 18, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun Joo PARK, Junseok Kim, Yohan Roh, Hyunsurk Ryu, Jooyeon woo, Hyunku Lee
  • Patent number: 11637983
    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: October 1, 2021
    Date of Patent: April 25, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Junseok Kim, Hyunsurk Ryu, Keun Joo Park, Masamichi Ito
  • Patent number: 11627271
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 11575849
    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.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: February 7, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Junseok Kim, Yohan Roh, Hyunsurk Ryu, Jooyeon Woo, Hyunku Lee
  • Publication number: 20220109803
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo PARK, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 11233964
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • 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
  • Patent number: 11202025
    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.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Junseok Kim, Yohan Roh, Hyunsurk Ryu, Jooyeon Woo, Hyunku Lee
  • 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: 10970850
    Abstract: A method and device for recognizing a motion of an object, the method including receiving event signals from a vision sensor configured to sense the motion, storing, in an event map, first time information indicating a time at which intensity of light corresponding to the event signals changes; generating an image based on second time information corresponding to a predetermined time range among the first time information, and recognizing the motion of the object based on the image.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoobin Lee, Keun Joo Park, Kyoungseok Pyun, Eric Hyunsurk Ryu
  • Publication number: 20200412930
    Abstract: An event detecting device may include an event signal generator configured to output a plurality of event signals, each including a first data and a second data having mutually complementary attributes and respective address data indicating positions of pixels having output the first data and the second data, a data manager configured to store one of the first data and the second data of a first one of the plurality of event signals and the respective address data in a buffer as first sub data when only one of the first data and the second data of the first one of the plurality of event signals includes the event information, and an output signal generator configured to generate an output signal using the first sub data and a second sub data when the second sub data, different from the first sub data, is stored in the buffer.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: HEE JAE JUNG, JUN SEOK KIM, HYUN SURK RYU, YUN JAE SUH, BONG KI SON, SEOL NAMGUNG, KEUN JOO PARK
  • Patent number: 10855927
    Abstract: An event detecting device may include an event signal generator configured to output a plurality of event signals, each including a first data and a second data having mutually complementary attributes and respective address data indicating positions of pixels having output the first data and the second data, a data manager configured to store one of the first data and the second data of a first one of the plurality of event signals and the respective address data in a buffer as first sub data when only one of the first data and the second data of the first one of the plurality of event signals includes the event information, and an output signal generator configured to generate an output signal using the first sub data and a second sub data when the second sub data, different from the first sub data, is stored in the buffer.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee Jae Jung, Jun Seok Kim, Hyun Surk Ryu, Yun Jae Suh, Bong Ki Son, Seol Namgung, Keun Joo Park
  • Patent number: RE48780
    Abstract: A method of extracting a static pattern from an output of an event-based sensor. The method may include receiving an event signal from the event-based sensor in response to dynamic input, and extracting a static pattern associated with the dynamic input based on an identifier and time included in the event signal. The static pattern may be extracted from a map generated based on the identifier and time.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Haeng Lee, Keun Joo Park, Changwoo Shin, Jooyeon Woo, Hyunsurk Eric Ryu, Seokjin Hong