Patents by Inventor Chang Kyu An

Chang Kyu An 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: 20220073029
    Abstract: A system for providing an alarm indicating a non-fastening state of a seatbelt of a vehicle is provided. The system includes a seatbelt part provided in a seat of the vehicle; a first controller connected in communication to the seatbelt part and configured to determine whether a buckle of the seatbelt part is fastened and a first sensor module connected to the first controller. The first sensor module includes a first transmitter configured to transmit a buckle fastening signal when the buckle is fastened. A second sensor module includes a first receiver that is configured to receive the buckle fastening signal from the first sensor module. A second controller is connected in communication to the second sensor module, and is configured to receive the buckle fastening signal and output an alarm indicating whether the seatbelt is fastened.
    Type: Application
    Filed: February 24, 2021
    Publication date: March 10, 2022
    Inventors: Chang Kyu Bok, Young Rok Kim, Jung Kyun Bong
  • Patent number: 11271553
    Abstract: A buffer circuit configured to receive first and second input signals through first and second input transistors coupled to a first power voltage node, output a first output signal through a first output node and a second output signal through a second output node based on the first and second input signals. A load circuit is coupled among the first output node, the second output node, and a second power voltage node and a resistance value is adjusted based on at least one of the first and second output signals.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 8, 2022
    Assignee: SK hynix Inc.
    Inventors: Sun Ki Cho, Dong Uc Ko, Yang Ho Sur, Jun Yong Song, Sung Gil Jang, Hae Kang Jung, Min Sung Cheon, Chang Kyu Choi, Tae Jin Hwang
  • Publication number: 20220069813
    Abstract: A buffer circuit configured to receive first and second input signals through first and second input transistors coupled to a first power voltage node, output a first output signal through a first output node and a second output signal through a second output node based on the first and second input signals. A load circuit is coupled among the first output node, the second output node, and a second power voltage node and a resistance value is adjusted based on at least one of the first and second output signals.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 3, 2022
    Applicant: SK hynix Inc.
    Inventors: Sun Ki Cho, Dong Uc Ko, Yang Ho Sur, Jun Yong Song, Sung Gil Jang, Hae Kang Jung, Min Sung Cheon, Chang Kyu Choi, Tae Jin Hwang
  • Publication number: 20220067419
    Abstract: A method and apparatus for processing an image based on partial images. The method includes extracting a feature of a current partial processing region of an input image frame by inputting pixel data of the current partial processing region into a convolutional neural network (CNN), updating a hidden state of a recurrent neural network (RNN) for a context between the current partial processing region and at least one previous partial processing region by inputting the extracted feature into the RNN, and generating an image processing result for the input image frame based on the updated hidden state.
    Type: Application
    Filed: February 17, 2021
    Publication date: March 3, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: JAEHYOUNG YOO, CHANGYONG SON, DONGWOOK LEE, JAEJOON HAN, CHANG KYU CHOI
  • Patent number: 11256906
    Abstract: Disclosed is a face verification method and apparatus. The method including analyzing a current frame of a verification image, determining a current frame state score of the verification image indicating whether the current frame is in a state predetermined as being appropriate for verification, determining whether the current frame state score satisfies a predetermined validity condition, and selectively, based on a result of the determining of whether the current frame state score satisfies the predetermined validity condition, extracting a feature from the current frame and performing verification by comparing a determined similarity between the extracted feature and a registered feature to a set verification threshold.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: February 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Changyong Son, Wonsuk Chang, Deoksang Kim, Dae-Kyu Shin, Byungin Yoo, Seungju Han, Jaejoon Han, Jinwoo Son, Chang Kyu Choi
  • Patent number: 11256357
    Abstract: Provided is a display device which comprises a display area, a non-display area on an outer side of the display area, a data line unit comprising a plurality of data lines, a power line unit disposed over the plurality of data lines and comprising a plurality of power lines, and a touch line unit disposed over the power line unit, comprising a plurality of touch lines and comprising a fan-out portion. The display device has a fan-out configuration in its non-display area, thereby reducing the dead space.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 22, 2022
    Inventors: Chang Kyu Jin, Yang Wan Kim, Joong Soo Moon, Young Jin Cho
  • Publication number: 20220044009
    Abstract: A face verifying method and apparatus. The face verifying method includes detecting a face region from an input image, generating a synthesized face image by combining image information of the face region and reference image information, based on a determined masking region, extracting one or more face features from the face region and the synthesized face image, performing a verification operation with respect to the one or more face features and predetermined registration information, and indicating whether verification of the input image is successful based on a result of the performed verification operation.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seungju HAN, Minsu KO, Deoksang KIM, Chang Kyu CHOI, Jaejoon HAN
  • Publication number: 20220044040
    Abstract: A processor-implemented liveness test method includes detecting a face region in a query image, the query image including a test object for a liveness test, determining a liveness test condition to be applied to the test object among at least one liveness test condition for at least one registered user registered in a registration database, determining at least one test region in the query image based on the detected face region and the determined liveness test condition, obtaining feature data of the test object from image data of the determined at least one test region using a neural network-based feature extractor, and determining a result of the liveness test based on the obtained feature data and registered feature data registered in the registration database and corresponding to the determined liveness test condition.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 10, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youngjun KWAK, Byung In YOO, Youngsung KIM, Chang Kyu CHOI, Jaejoon HAN
  • Publication number: 20220044361
    Abstract: A processor-implemented method of generating feature data includes: receiving an input image; generating, based on a pixel value of the input image, at least one low-bit image having a number of bits per pixel lower than a number of bits per pixel of the input image; and generating, using at least one neural network, feature data corresponding to the input image from the at least one low-bit image.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 10, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Kyu CHOI, Youngjun KWAK, Seohyung LEE
  • Publication number: 20220033781
    Abstract: An artificial recombinant chromosome produced by recombination of two or more chromosomes and the production of a transgenic animal using a cell including the same are disclosed. A method for producing a cell including one or more artificial recombinant chromosomes includes preparing a first targeted cell and a second targeted cell, producing one or more microcells using the second targeted cell, producing a fusion cell using the first targeted cell and the one or more microcells, and producing a cell including an artificial recombinant chromosome by treating the fusion cell with site specific recombinase (SSR).
    Type: Application
    Filed: November 12, 2019
    Publication date: February 3, 2022
    Inventors: Chang Kyu Oh, Soon-Ik Park, Ho Jin Kang, Ae Jin Choi
  • Patent number: 11227149
    Abstract: A processor-implemented liveness detection method includes: obtaining an initial image using a dual pixel sensor; obtaining a left image and a right image from the initial image; and detecting liveness of an object included in the initial image using the left image and the right image.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 18, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaejoon Han, Hana Lee, Jihye Kim, Jingtao Xu, Chang Kyu Choi, Hangkai Tan, Jiaqian Yu
  • Patent number: 11222263
    Abstract: A lightened neural network method and apparatus. The neural network apparatus includes a processor configured to generate a neural network with a plurality of layers including plural nodes by applying lightened weighted connections between neighboring nodes in neighboring layers of the neural network to interpret input data applied to the neural network, wherein lightened weighted connections of at least one of the plurality of layers includes weighted connections that have values equal to zero for respective non-zero values whose absolute values are less than an absolute value of a non-zero value. The lightened weighted connections also include weighted connections that have values whose absolute values are no greater than an absolute value of another non-zero value, the lightened weighted connections being lightened weighted connections of trained final weighted connections of a trained neural network whose absolute maximum values are greater than the absolute value of the other non-zero value.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: January 11, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Changyong Son, Jinwoo Son, Byungin Yoo, Chang Kyu Choi, Jae-Joon Han
  • Publication number: 20210400934
    Abstract: A transgenic animal having a genome including a humanized immunoglobulin locus for securing the diversity of an antibody repertoire and a method of producing the same are disclosed. The transgenic non-human animal has two alleles of a humanized immunoglobulin gene, wherein the two alleles are hetero-alleles.
    Type: Application
    Filed: October 16, 2020
    Publication date: December 30, 2021
    Applicant: Humab Co., Ltd
    Inventors: Chang Kyu OH, Kyoung Seok OH, Soon Ik PARK
  • Patent number: 11200405
    Abstract: A three-dimensional (3D) image-based facial verification method and apparatus is provided. The facial verification method may include capturing a facial image of a 3D face of a user, determining an occluded region in the captured facial image by comparing the captured facial image and an average facial image, generating a synthetic image by synthesizing the captured facial image and the average facial image based on the occluded region, and verifying the user based on the synthetic image.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: December 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seungju Han, Minsu Ko, Jaejoon Han, Chang Kyu Choi
  • Publication number: 20210376997
    Abstract: An artificial intelligence calculation semiconductor device is provided. The artificial intelligence calculation semiconductor device comprising: a control unit; and a MAC (Multiply and Accumulator) calculator which executes a homomorphic encryption calculation through the control unit, wherein the MAC calculator includes an NTT (Numeric Theoretic Transform)/INTT (Inverse NTT) circuit which generates cipher texts by performing a homomorphic multiplication calculation through transformation or inverse transformation of data, a cipher text multiplier which executes a multiplication calculation between the cipher texts, a cipher text adder/subtractor which executes addition and/or subtraction calculations between the cipher texts, and a rotator which performs a cyclic shift of a slot of the cipher texts.
    Type: Application
    Filed: December 29, 2020
    Publication date: December 2, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin Soo LIM, Chang Kyu SEOL, Pil Sang YOON, Ji Youp KIM, Ju-Young JUNG
  • Patent number: 11189015
    Abstract: A processor-implemented method of generating feature data includes: receiving an input image; generating, based on a pixel value of the input image, at least one low-bit image having a number of bits per pixel lower than a number of bits per pixel of the input image; and generating, using at least one neural network, feature data corresponding to the input image from the at least one low-bit image.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: November 30, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Kyu Choi, Youngjun Kwak, Seohyung Lee
  • Patent number: 11163982
    Abstract: A face verifying method and apparatus. The face verifying method includes detecting a face region from an input image, generating a synthesized face image by combining image information of the face region and reference image information, based on a determined masking region, extracting one or more face features from the face region and the synthesized face image, performing a verification operation with respect to the one or more face features and predetermined registration information, and indicating whether verification of the input image is successful based on a result of the performed verification operation.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: November 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seungju Han, Minsu Ko, Deoksang Kim, Chang Kyu Choi, Jaejoon Han
  • Publication number: 20210334350
    Abstract: A processor-implemented method of performing authentication includes obtaining a first biometric information of a user according to a first modality; calculating a first score based on the first biometric information; filtering the first score; determining whether the filtered first score satisfies a second condition; and selectively, based on a result of the determining, authenticating the user based on the first score and a first condition corresponding to the first modality. The second condition is different from the first condition.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 28, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jihye KIM, Seungju HAN, Jaejoon HAN, Chang Kyu CHOI
  • Patent number: 11157760
    Abstract: A processor-implemented liveness test method includes detecting a face region in a query image, the query image including a test object for a liveness test, determining a liveness test condition to be applied to the test object among at least one liveness test condition for at least one registered user registered in a registration database, determining at least one test region in the query image based on the detected face region and the determined liveness test condition, obtaining feature data of the test object from image data of the determined at least one test region using a neural network-based feature extractor, and determining a result of the liveness test based on the obtained feature data and registered feature data registered in the registration database and corresponding to the determined liveness test condition.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 26, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youngjun Kwak, Byung In Yoo, Youngsung Kim, Chang Kyu Choi, Jaejoon Han
  • Publication number: 20210270228
    Abstract: A wave power generation system includes: a hydraulic pump device configured to operate by force of a wave to discharge an operating liquid to a main passage; a hydraulic motor device configured to be rotated by the operating liquid flowing through the main passage; a power generator configured to be driven by the hydraulic motor to generate electric power; and a heat exchanger device configured to perform heat exchange of the operating liquid. The heat exchanger device includes a heat exchange motor device connected to the main passage through a sub passage and configured to be operated by the operating liquid introduced through the sub passage, a refrigerant pump device driven by the heat exchange motor device and configured to suck and discharge a refrigerant liquid, and a heat exchanger to which the refrigerant liquid discharged from the heat exchange pump device and the operating liquid are introduced.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 2, 2021
    Applicants: THE UNIVERSITY OF TOKYO, KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Koki MARUYAMA, Chang-Kyu RHEEM, Hidetaka KOBAYASHI, Naoki KURIBAYASHI, Hideki TANAKA, Masahide TSUJI