Patents by Inventor Chang-hyun Kim

Chang-hyun Kim 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: 20240099129
    Abstract: The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 21, 2024
    Inventors: Dong Wan RYU, Chang Ju SHIN, Seungjae LEE, Hyung Sun KIM, Yuna JANG, Eun Sun YU, Sung-Hyun JUNG
  • Publication number: 20240098382
    Abstract: An image processing device including: a decision pixel manager for setting a decision area for a defect candidate pixel, and determining a first decision pixel and a second decision pixel, based on first phase information of pixels included in the decision area with respect to a first modulation frequency of a sensing light source among the pixels; a target pixel determiner for calculating a phase difference between the first decision pixel and the second decision pixel, based on second phase information of the pixels with respect to a second modulation frequency of the sensing light source, and determining the defect candidate pixel as a target pixel, corresponding to that the phase difference exceeds a predetermined reference value; and a phase corrector for changing a phase of the target pixel, based on the phase difference.
    Type: Application
    Filed: February 28, 2023
    Publication date: March 21, 2024
    Applicant: SK hynix Inc.
    Inventors: Woo Young JEONG, Ja Min KOO, Tae Hyun KIM, Jae Hwan JEON, Chang Hun CHO
  • Patent number: 11931884
    Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: March 19, 2024
    Assignees: GeoSystem Inc., Buildingpointkorea Inc.
    Inventors: Dong Hun Kang, Jong Hyun Oh, Ji Eun Kim, Chang Wook Joh, Young Hoon Koh
  • Patent number: 11935441
    Abstract: The present disclosure relates to an apparatus for controlling a multi-image display provided in a vehicle, and a method thereof. According to the present disclosure, a multi-image display device may simultaneously output two or more images separated depending on an output angle or an optical frequency, and a first reflection member provided in an indoor ceiling of the vehicle may reflect one image among the two or more images output from the multi-image display device.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: March 19, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, ANYRACTIVE.CO., LTD.
    Inventors: Chang Jin Ji, Min Han Kim, Yong Lee, Sung Hyun Lim
  • Publication number: 20240090121
    Abstract: A printed circuit board includes a first substrate portion including a plurality of first insulating layers, a plurality of first wiring layers respectively disposed on the plurality of first insulating layers, and a plurality of first adhesive layers respectively disposed between the plurality of first insulating layers to respectively cover the plurality of first wiring layers; and a second substrate portion disposed on the first substrate portion, and including a plurality of second insulating layers, a plurality of second wiring layers respectively disposed on the plurality of second insulating layers, and a plurality of second adhesive layers respectively disposed between the plurality of second insulating layers to respectively cover the plurality of second wiring layers.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dae Jung BYUN, Jung Soo KIM, Sang Hyun SIM, Chang Min HA, Tae Hong MIN, Jin Won LEE
  • Publication number: 20240082095
    Abstract: Disclosed is an exoskeleton-type rehabilitation robot system, including: a body part provided on a chair in which a user sits and provided with a robot arm capable of moving left or right based on the user seated on the chair; a conversion part configured to convert a position of the robot arm with respect to the body part; a driving part configured to articulate the robot arm with respect to the body part; and a controller configured to detect a change in a position of the robot arm and control a left or right driving mode of the driving part according to the position of the robot arm. In accordance with such a configuration, the exoskeleton-type rehabilitation robot system of the present invention is provided integrally with a chair, thereby having excellent space utilization. In addition, the user's initial preparation for rehabilitation training is simple, which can improve efficiency.
    Type: Application
    Filed: December 27, 2021
    Publication date: March 14, 2024
    Applicant: HEXARHUMANCAR CO., LTD
    Inventors: Chang Soo HAN, Ho Jun KIM, Su Hyun PARK, Young Hoon JI, Jeong Ho CHO, Byung Gab RYU, Jeong Gyu PARK, Dong Eun CHOI
  • Publication number: 20240090325
    Abstract: The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 14, 2024
    Inventors: Dong Wan RYU, Chang Ju SHIN, Seungjae LEE, Hyung Sun KIM, Yuna JANG, Eun Sun YU, Sung-Hyun JUNG
  • Publication number: 20240080320
    Abstract: A server according to an embodiment includes a processor configured to receive a friend add request for a target account from a user terminal accessed with a user account; based on one of the user account and the target account being a protected account, transmit an approval request for the friend add request to a protector account connected to the protected account; and based on receiving a reply to the approval request from the protector terminal, add the target account to a friend list of the user account.
    Type: Application
    Filed: April 27, 2023
    Publication date: March 7, 2024
    Inventors: You Jin KIM, Jung Woo CHOI, Jenog Ryeol CHOI, Joong Seon KIM, Hong Chan YUN, Ju Ho CHUNG, Do Hyun YOUN, Hyung Min KIM, Hyun Ok CHOI, Chun Ho KIM, Soo Beom KIM, Min Jeong KIM, Chang Oh HEO, Eun Soo HEO
  • Publication number: 20240066092
    Abstract: Provided are a curcumin nanoparticle complex having a modified particle surface and a method for preparing same. A curcumin nanoparticle complex includes curcumin and phospholipids and has a particle size of less than 1000 nm. A first coating layer containing a cationic material and/or a second coating layer containing an anionic material can be further added.
    Type: Application
    Filed: September 1, 2023
    Publication date: February 29, 2024
    Applicant: BINOTEC CO., LTD.
    Inventors: Gi Hyun Jang, Chang Hwan Seok, Ji Won Shin, Yun Geum Sang Gwak, Yu Mi Kim
  • Publication number: 20240072423
    Abstract: An antenna assembly for use with a wireless communication wearable device. The antenna assembly includes a circuit board with components extending from a surface thereof. The antenna assembly has a first radiator antenna and a second radiator antenna which extends about the perimeter of the first antenna. A first slot is provided between the first radiator antenna and the second radiator antenna. The first slot separates the first radiator antenna from the second radiator antenna.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Applicants: TE Connectivity Solutions GmbH, Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Chang Hyun LEE, Jung-Hoon Kim, Dong Wook Park, Kiran Vanjani
  • Patent number: 11900982
    Abstract: A semiconductor device may include: a first receiver configured to receive a chip select signal from a receiving node to which a termination resistor is coupled and configured to generate a first internal chip select signal; a command pulse generation circuit configured to generate a command pulse for entering into a self-refresh operation based on an internal command address and the first internal chip select signal; and an operation control circuit configured to, when the semiconductor device enters the self-refresh operation based on the command pulse, generate a resistor value change signal that adjusts the value of the termination resistor.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: February 13, 2024
    Assignee: SK hynix Inc.
    Inventors: Chang Hyun Kim, Seok Bo Shim
  • Publication number: 20230418474
    Abstract: A Processing-in-Memory (PIM) computing system and a memory controller provide improved memory traffic efficiency and improved PIM operation efficiency by increasing a burst length of a PIM operation relative to a general memory request. In embodiments, the increased burst length allows the PIM operation to be performed in units of pages, wherein a page is management unit of a memory used in the PIM operation.
    Type: Application
    Filed: December 20, 2022
    Publication date: December 28, 2023
    Inventors: Seon Wook KIM, Chang Hyun KIM, Won Joon LEE
  • Publication number: 20230400985
    Abstract: A Processing-In-Memory (PIM) computing system and a PIM computation offloading method thereof perform PIM computation offloading using a DMA engine. The DMA engine is configured to process a transaction by respectively performing descriptor requests and PIM requests for one or more descriptors stored in a memory, in response to a memory request of a CPU. The memory includes a PIM unit and a memory array, which memory array may be a DRAM. In response to the PIM requests, the PIM unit performs PIM operations using information included in data provided to the DMA engine in response to the descriptor requests.
    Type: Application
    Filed: December 20, 2022
    Publication date: December 14, 2023
    Inventors: Seon Wook KIM, Chang Hyun KIM, Won Joon LEE
  • Publication number: 20230329644
    Abstract: The present invention relates to a device for analyzing a bio-signal, and a method therefor, and the method for analyzing a bio-signal comprises the steps of: removing bio-signal noise generated by a sensor; estimating the signal quality of the bio-signal for a preset unit time; classifying the bio-signal for the preset unit time into an abnormal signal or a normal signal; and determining whether an abnormal state episode occurs and a duration time thereof on the basis of the signal quality of the bio-signal for a plurality of unit times and the result of the classification.
    Type: Application
    Filed: October 1, 2021
    Publication date: October 19, 2023
    Inventors: Byung Hwan LEE, Chang Hyun BAIK, Chang Hyun KIM, Chang Woo CHOI, Hyung Min CHANG, Sung Mi Jo, Hae Na KIM, Dae Sung KIM, Yu Mi JI
  • Publication number: 20230329623
    Abstract: The present invention relates to a device and a method for analyzing an abnormal physiological signal, and the method for analyzing an abnormal physiological signal comprises the steps of: removing bio-signal noise generated by a sensor; estimating the signal quality of the bio-signal for a preset unit time; performing classification of an atrial fibrillation (AF), which is an abnormal signal, on the bio-signal for the unit time to classify same into an AF, which is an abnormal signal, and a normal sinus rhythm (NSR), which is a normal signal; determining whether an AF episode, which is an abnormal state episode, occurs and a duration time thereof, on the basis of the signal quality of preset number of consecutive unit times and the result of the classification of the AF, which is an abnormal signal; and calculating the load of the AF, which is an abnormal signal, on the basis of whether an AF episode, which is an abnormal state episode, occurs and the duration time thereof.
    Type: Application
    Filed: October 1, 2021
    Publication date: October 19, 2023
    Inventors: Byung Hwan LEE, Chang Hyun BAIK, Chang Hyun KIM, Chang Woo CHOI, Hyung Min CHANG, Sung Mi JO, Hae Na KIM, Dae Sung KIM, Yu Mi JI
  • Patent number: 11791052
    Abstract: The method for estimating mental health and providing solution for mental health by learning psychological data and biological data based on machine learning includes: (a) acquiring, by mental health estimating device, psychological data for testing and biological data for testing of test subject from terminal of the test subject in state in which first estimated model is learned by referring to estimated mental health data for learning output from the first estimated model and ground truth mental health data corresponding to the estimated mental health data after psychological data for learning and biological data for learning of learning subjects are input to the first estimated model; and (b) inputting, by the mental health estimating device, the psychological data for testing and the biological data for testing to the first estimated model to allow the first estimated model to output estimated mental health data for testing.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: October 17, 2023
    Assignees: MINDSAI CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jeong Ho Seok, Su A. Jang, Sun Woo Choi, Tae Jung Kim, Chang Hyun Kim, Ryun Sup Ahn
  • Patent number: 11784100
    Abstract: A method of manufacturing a flip chip package includes forming a plurality of semiconductor chips and bonding the semiconductor chips to a package substrate. The method further includes electrically testing the plurality of semiconductor chips on the package substrate, molding the tested semiconductor chips, and singulating the molded chips. Electrically testing the semiconductor chips includes covering the semiconductor chips with a protection member.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: October 10, 2023
    Assignee: SK hynix Inc.
    Inventors: Jee Won Chung, Dong Jin Kim, Byeung Ho Kim, Chang Hyun Kim
  • Patent number: 11742090
    Abstract: The method for estimating mental health and providing solution for mental health by learning psychological data and biological data based on machine learning includes: (a) acquiring, by mental health estimating device, psychological data for testing and biological data for testing of test subject from terminal of the test subject in state in which first estimated model is learned by referring to estimated mental health data for learning output from the first estimated model and ground truth mental health data corresponding to the estimated mental health data after psychological data for learning and biological data for learning of learning subjects are input to the first estimated model; and (b) inputting, by the mental health estimating device, the psychological data for testing and the biological data for testing to the first estimated model to allow the first estimated model to output estimated mental health data for testing.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: August 29, 2023
    Assignees: MINDSAI CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jeong Ho Seok, Su A. Jang, Sun Woo Choi, Tae Jung Kim, Chang Hyun Kim, Ryun Sup Ahn
  • Patent number: 11709777
    Abstract: A memory system includes: a first memory module including first volatile memories; a second memory module including second volatile memories, non-volatile memories and a module controller; a memory controller controlling the first and second memory modules through second and third control buses, respectively; and a switch array electrically coupling the second and third control buses, wherein the module controller controls the switch array to electrically couple the second and third control buses in a backup operation for backing up data of the first volatile memories to the non-volatile memories, wherein the first and second memory modules include one or more first memory stacks and one or more second memory stacks, respectively, wherein the first volatile memories are stacked in the first memory stacks, and wherein the second volatile memories, the non-volatile memories and the module controller are stacked in the second memory stacks.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: July 25, 2023
    Assignee: SK hynix Inc.
    Inventors: Yong-Woo Lee, Min-Chang Kim, Chang-Hyun Kim, Do-Yun Lee, Jae-Jin Lee, Hun-Sam Jung, Chan-Jong Woo
  • Patent number: D1018323
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: March 19, 2024
    Assignee: KOLMAR KOREA CO., LTD.
    Inventors: Chang Soo Yi, Jong Hyun Park, Hye Jin Jung, Hee Yoon Kim