Patents by Inventor Chang Kyu Choi

Chang Kyu Choi 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: 20240109397
    Abstract: A method for controlling an electric heater of a vehicular heating, ventilation, and air conditioning (HVAC) system includes turning on the electric heater; determining whether an ambient air temperature of a vehicle is higher than or equal to a threshold ambient air temperature, and a battery temperature is lower than or equal to a threshold battery temperature; determining whether battery efficiency is lower than or equal to threshold efficiency when the ambient air temperature of the vehicle is higher than or equal to the threshold ambient air temperature, and the battery temperature is lower than or equal to the threshold battery temperature; and turning off the electric heater when the battery efficiency is lower than or equal to the threshold efficiency, wherein the electric heater is configured to receive electric energy from the battery.
    Type: Application
    Filed: March 30, 2023
    Publication date: April 4, 2024
    Inventors: Dae Hyun Song, Chang Gi Ryu, Woo Jin Lee, Dong Ju Ko, Hyun Hun Choi, Chun Kyu Kwon, In Uk Ko
  • Patent number: 11948074
    Abstract: Disclosed is a processor-implemented data processing method in a neural network. A data processing apparatus includes at least one processor, and at least one memory configured to store instructions to be executed by the processor and a neural network, wherein the processor is configured to, based on the instructions, input an input activation map into a current layer included in the neural network, output an output activation map by performing a convolution operation between the input activation map and a weight quantized with a first representation bit number of the current layer, and output a quantized activation map by quantizing the output activation map with a second representation bit number based on an activation quantization parameter.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 2, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangil Jung, Changyong Son, Seohyung Lee, Jinwoo Son, Chang Kyu Choi
  • Publication number: 20240103362
    Abstract: Disclosed herein is a method of printing a nanostructure including: preparing a template substrate on which a pattern is formed; forming a replica pattern having an inverse phase of the pattern by coating a polymer thin film on an upper portion of the template substrate, adhering a thermal release tape to an upper portion of the polymer thin film, and separating the polymer thin film from the template substrate; forming a nanostructure by depositing a functional material on the replica pattern; and printing the nanostructure deposited on the replica pattern to a substrate by positioning the nanostructure on the substrate, applying heat and pressure to the nanostructure, and weakening an adhesive force between the thermal release tape and the replica pattern by the heat.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 28, 2024
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Min KIM, Seung Yong LEE, So Hye CHO, Ho Seong JANG, Jae Won CHOI, Chang Kyu HWANG
  • Publication number: 20240091759
    Abstract: Disclosed herein is a method of depositing a transition metal single-atom catalyst including preparing a carbon carrier, and depositing a transition metal single-atom catalyst on the carbon carrier, in which the carbon carrier is surface-treated by an oxidation process, and wherein the deposition is carried out by an arc plasma process.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 21, 2024
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Min KIM, Sang Hoon KIM, Chang Kyu HWANG, Seung Yong LEE, So Hye CHO, Jae Won CHOI
  • Patent number: 11925080
    Abstract: A display device includes a substrate including a display area and a non-display area, a plurality of pixels disposed in the display area, a common voltage supply wiring overlapping the non-display area and disposed on the substrate, a driving voltage supply wiring overlapping the non-display area and disposed on the substrate, and a data voltage supply wiring overlapping the non-display area and electrically connected to the plurality of pixels, where at least one of the common voltage supply wiring and the driving voltage supply wiring includes a chamfered area, the data voltage supply wiring includes a first data voltage supply wiring, a second data voltage supply wiring, and a third data voltage supply wiring, and the first to third data voltage supply wirings are disposed in different layers.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Ho Choi, Won Kyu Kwak, Chang Soo Pyon, Seung Gyu Tae
  • Patent number: 11915432
    Abstract: Disclosed is a target tracking method and apparatus. The target tracking apparatus includes a processor configured to obtain a first depth feature from a target region image and obtain a second depth feature from a search region image, obtain a global response diagram between the first depth feature and the second depth feature, acquire temporary bounding box information based on the global response diagram, updated the second depth feature based on the temporary bounding box information, obtain local feature blocks based on the first depth feature, obtain a local response diagram based on the local feature blocks and the updated second depth feature, and determine output bounding box information based on the local response diagram.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: February 27, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jingtao Xu, Jiaqian Yu, Byung In Yoo, Chang Kyu Choi, Hyunjeong Lee, Hangkai Tan, Jaejoon Han, Qiang Wang, Yiwei Chen
  • Patent number: 11915119
    Abstract: A convolutional neural network (CNN) processing method includes selecting a survival network in a precision convolutional network based on a result of performing a high speed convolution operation between an input and a kernel using a high speed convolutional network, and performing a precision convolution operation between the input and the kernel using the survival network.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 27, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Changyong Son, Jinwoo Son, Chang Kyu Choi, Jaejoon Han
  • Patent number: 11893497
    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: March 29, 2023
    Date of Patent: February 6, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Kyu Choi, Youngjun Kwak, Seohyung Lee
  • Publication number: 20230334901
    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: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Applicant: 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: 11790065
    Abstract: A user verification apparatus may perform user verification using multiple biometric verifiers. The user verification apparatus may set a termination stage of one or more biometric verifiers. Multiple biometric verifiers may be used to generate outputs, for which separate termination stages are set to establish a particular combination of set termination stages associated with the multiple biometric verifiers, and the user verification apparatus may fuse outputs of the biometric verifiers based on the particular combination of set termination stages. The user verification apparatus may verify a user based on a result of the fusing, and an unlocking command signal may be generated based on the verifying. The unlocking command signal may be generated to selectively grant access, to the verified user, to one or more elements of a device. The device may be a vehicle.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: October 17, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungjoo Suh, Seungju Han, Jae-Joon Han, Chang Kyu Choi
  • Patent number: 11790494
    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: December 2, 2021
    Date of Patent: October 17, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seungju Han, Minsu Ko, Jaejoon Han, Chang Kyu Choi
  • Publication number: 20230326241
    Abstract: Disclosed is a face verification method and apparatus. A mobile device may include one or more processors configured to obtain one or more images for a user, ascertain whether any of the one or more images correspond to respective user distances, from the user to the mobile device, outside of a threshold range of distances, and selectively, based on a result of the ascertaining, perform verification using a first verification threshold for any of the one or more images ascertained to correspond to the respective user distances that are outside the threshold range of distances, and perform verification using a less strict second verification threshold for any of the one or more images that have been ascertained to not correspond to the respective user distances that are outside the threshold range of distances.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 12, 2023
    Applicant: 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: 11783639
    Abstract: A liveness test method and apparatus is disclosed. A processor implemented liveness test method includes extracting an interest region of an object from a portion of the object in an input image, performing a liveness test on the object using a neural network model-based liveness test model, the liveness test model using image information of the interest region as provided first input image information to the liveness test model and determining liveness based at least on extracted texture information from the information of the interest region by the liveness test model, and indicating a result of the liveness test.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 10, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byungin Yoo, Youngjun Kwak, Jungbae Kim, Jinwoo Son, Changkyo Lee, Chang Kyu Choi, Jaejoon Han
  • Patent number: 11775851
    Abstract: A user verification method and apparatus using a generalized user model is disclosed, where the user verification method includes generating a feature vector corresponding to a user based on input data corresponding to the user, determining a first parameter indicating a similarity between the feature vector and an enrolled feature vector enrolled for user verification, determining a second parameter indicating a similarity between the feature vector and a user model corresponding to generalized users, and verifying the user based on the first parameter and the second parameter.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 3, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dohwan Lee, Kyuhong Kim, Chang Kyu Choi
  • Publication number: 20230282216
    Abstract: An authentication method and apparatus using a transformation model are disclosed. The authentication method includes generating, at a first apparatus, a first enrolled feature based on a first feature extractor, obtaining a second enrolled feature to which the first enrolled feature is transformed, determining an input feature by extracting a feature from input data with a second feature extractor different from the first feature extractor, and performing an authentication based on the second enrolled feature and the input feature.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Seungju HAN, Jaejoon HAN, Minsu KO, Chang Kyu CHOI, Bohyung HAN
  • Patent number: 11727720
    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: February 22, 2022
    Date of Patent: August 15, 2023
    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
  • Publication number: 20230252120
    Abstract: A method and apparatus with selective combined authentication performs a single authentication based on a first modality among plural modalities, and in response to the single authentication having failed, determines whether to perform a combined authentication by a combination of two or more of the plural modalities, and selectively, depending on a result of the determining of whether to perform the combined authentication, performs the combined authentication.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 10, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jihye KIM, Seungju HAN, Jaejoon HAN, Minsu KO, SungUn PARK, Chang Kyu CHOI
  • Patent number: 11723143
    Abstract: A system and method for dissipating heat from a package and reducing interference between signaling pins is disclosed. The system includes a circuit substrate that includes a dielectric layer and at least one metal layer having an external surface. A plurality of metal posts is disposed on the external surface that function to a least one of dissipate heat from the circuit substrate, shield interfering signals between the signaling pins, and interact with mounting substrates on corresponding componentry. One or more metal posts are merged, increasing the interference shielding and heat dissipation functions of the metal posts.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: August 8, 2023
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Chang Kyu Choi, Hyun Mo Ku, Sarah Kay Haney, Li Sun
  • Patent number: 11720658
    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: Grant
    Filed: June 28, 2021
    Date of Patent: August 8, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jihye Kim, Seungju Han, Jaejoon Han, Chang Kyu Choi
  • Patent number: 11715329
    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: August 1, 2023
    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