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: 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
  • Publication number: 20230197118
    Abstract: A semiconductor memory device may include a plurality of memory cells wherein identifiers may be provided to the memory cells. The semiconductor memory device may include a first circuit, a second circuit and a power control circuit. The first circuit may include a first power terminal and a second power terminal. The second circuit may include a third terminal and a fourth terminal. The power control circuit may be configured to apply a first power voltage or a ground voltage to the first power terminal and to apply the ground voltage to the second power terminal based on the identifiers.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 22, 2023
    Applicant: SK hynix Inc.
    Inventor: Chang Hyun KIM
  • Patent number: 11647961
    Abstract: An electronic device and method for measuring user body information are provided. The method for measuring user body information includes detecting a contact of a user's body portion on at least two spots of a touch screen of the electronic device, upon detecting the contact of the user's body portion on the at least two spots of the touch screen, applying power to a first coil in the electronic device, and measuring the user body information using at least one of a voltage and a second current measured after a first current is induced across the user's body by a first magnetic field generated from the first coil as the power is applied.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: May 16, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Bae Park, Do-Yoon Kim, Young-Hyun Kim, Byung-Hun Choi, Jae-Eun Kang, Chang-Hyun Kim, Kang-Jin Yoon, Jeong-Eun Lee
  • Patent number: 11651418
    Abstract: The systems and methods for receiving a user input for a combination of a plurality of object pointers, wherein the object pointers are associated with a corresponding plurality of items located within a first area; retrieving one or more system parameters comprising a current location and a current container; transmitting a request for the combination of the plurality of object pointers, the request comprising the one or more system parameters; receiving the combination of the plurality of object pointers in response to the request; displaying locations of the plurality of items relative to the current location; and processing the plurality of items until a threshold capacity of the current container is reached by receiving input data corresponding to the plurality of object pointers.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 16, 2023
    Assignee: Coupang Corp.
    Inventors: Sung Jin Park, Chang Geun Jin, Lianxi Bai, Kyung Jae Lee, Chang Hyun Kim, Sang Ho Lee, Sang Hee Ahn, Hyeon Chang Baek, Sang Ho Yim, Seon Sook Hong, Kyeong Suk Jin, Seo Kyoung Leem, Eung Soo Lee
  • Patent number: 11600308
    Abstract: A semiconductor memory device may include a plurality of memory cells wherein identifiers may be provided to the memory cells. The semiconductor memory device may include a first circuit, a second circuit and a power control circuit. The first circuit may include a first power terminal and a second power terminal. The second circuit may include a third terminal and a fourth terminal. The power control circuit may be configured to apply a first power voltage or a ground voltage to the first power terminal and to apply the ground voltage to the second power terminal based on the identifiers.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: March 7, 2023
    Assignee: SK hynix Inc.
    Inventor: Chang Hyun Kim
  • Patent number: 11586378
    Abstract: A device includes a section signal generation circuit configured to generate a section signal including bits activated during an operation section of each of internal operations included in a mode operation, and a mode command generation circuit configured to generate a mode command for performing the internal operations included in the mode operation from an oscillating signal, based on the section signal.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: February 21, 2023
    Assignee: SK hynix Inc.
    Inventors: Chang Hyun Kim, Hyun Woong Yang, Soo Bin Lim
  • Publication number: 20220367065
    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: Application
    Filed: July 29, 2022
    Publication date: November 17, 2022
    Inventors: Jeong Ho Seok, Su A. Jang, Sun Woo Choi, Tae Jung Kim, Chang Hyun Kim, Ryun Sup Ahn
  • Patent number: 11487473
    Abstract: A memory system is disclosed, which relates to technology for implementing data communication between memory devices. The memory system includes a plurality of memory devices and a memory controller. The memory devices allow a data packet composed of data and header information to be directly communicated between the memory devices. The memory controller transmits the data packet to a source memory device from among the plurality of memory devices, and receives the data packet from a last memory device from among the plurality of memory devices. Each of the memory devices hashes the header information such that the data is accessed, using a result of the hash, in address regions located at different positions.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: November 1, 2022
    Assignee: SK hynix Inc.
    Inventors: Chang Hyun Kim, Eui Cheol Lim, Young Jung Choi, Hyung Sik Won, Sun Woong Kim
  • Patent number: 11483505
    Abstract: In accordance with an embodiment of the present disclosure, an image synchronization device includes a light emitting source configured to emit light at intervals of a predetermined time, a sampling phase calibration circuit configured to calibrate a sampling phase of each of the first image sensor and the second image sensor on the basis of a light emitting timing of the light emitting source and a delay calibration circuit configured to generate delay information on the basis of a result of comparison between first image information transmitted from the first image sensor and second image information transmitted from the second image sensor.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: October 25, 2022
    Assignee: SK hynix Inc.
    Inventors: Chang Hyun Kim, Wan Jun Roh, Doo Bock Lee, Seung Hun Lee, Jae Jin Lee, Chun Seok Jeong
  • Publication number: 20220325780
    Abstract: The present invention relates to a cycloidal speed reducer and a manufacturing method thereof, and more particularly, to a thin cycloidal speed reducer and a manufacturing method thereof that are capable of achieving a thin structure through an input member with a hollow portion.
    Type: Application
    Filed: July 31, 2020
    Publication date: October 13, 2022
    Applicant: BONSYSTEMS CO., LTD.
    Inventor: Chang-Hyun KIM