Patents by Inventor Hyun Hwang

Hyun Hwang 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).

  • Method for producing carrier for electrode catalyst, precursor of carrier for electrode catalyst, and carrier for electrode catalyst, comprising same
    Patent number: 11699795
    Abstract: A method for preparing a support for an electrode catalyst including forming first and second polymer layers having charges different from each other on a surface of a carbon support and carbonizing the result, wherein the polymers included in the first and the second polymer layers are an aromatic compound including a heteroatom, and the first or the second polymer includes a pyridine group.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: July 11, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Wonkyun Lee, Sang Hoon Kim, Gyo Hyun Hwang, Jun Yeon Cho, Kwanghyun Kim, Ran Choi
  • Method and device for searching for access point in wireless LAN
    Patent number: 11696222
    Abstract: A method and a device for searching for an access point in a wireless LAN are disclosed. An operating method of a station comprising a PCR and a WUR comprises the steps of: allowing the WUR operating in a wake up state to receive a WUR beacon frame from an access point; shifting an operating state of the PCR from a sleep state to the wake up state, when the WUR beacon frame is received; and allowing the PCR operating in the wake up state to communicate with the access point. Therefore, the performance of a communication system can be improved.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 4, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun Hwang, Igor Kim, Seung Keun Park
  • Service Robot System and Method for Operating the Same
    Publication number: 20230202049
    Abstract: An embodiment device for controlling a service robot includes a communication device configured to communicate with the service robot and a controller configured to detect a present situation of the service robot by using various pieces of sensor information acquired from the service robot, determine a task appropriate to the present situation of the service robot, wherein the task includes one or more behaviors, and control the service robot based on an action set for each of the one or more behaviors of the task.
    Type: Application
    Filed: June 23, 2022
    Publication date: June 29, 2023
    Inventors: Sang Hyun Hwang, Il Yong Yoon, Eun Ji Kim, Si Hyun Joo, Gil Jin Yang
  • CARRIER-NANOPARTICLE COMPLEX, CATALYST COMPRISING SAME, ELECTROCHEMICAL BATTERY COMPRISING CATALYST, AND METHOD FOR PRODUCING CARRIER-NANOPARTICLE COMPLEX
    Publication number: 20230187657
    Abstract: A carrier-nanoparticle complex, a catalyst including the same, an electrochemical cell including the catalyst, and a method for preparing a carrier-nanoparticle complex.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 15, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Wonkyun LEE, Sang Hoon KIM, Gyo Hyun HWANG, Jun Yeon CHO, Kwanghyun KIM, Ran CHOI
  • Battery Management System, Battery Management Method, Battery Pack, and Electric Vehicle
    Publication number: 20230182618
    Abstract: Provided are a battery management system and a battery management method. The battery management system includes a sensing unit to generate a sensing signal indicating a voltage and a current of a battery, a memory unit to store a reference charging map for constant-current charging using first to mth reference C-rates, and a control unit to determine a start value indicating a charge factor at a time point at which a charge command is received based on the sensing signal. The control unit generates first to mth reference charge functions corresponding to the first to mth reference C-rates in a one-to-one relationship from the reference charging map. When a charge cycle starts, the control unit controls a charge current supplied to the battery using the first to mth reference C-rates in a sequential order based on the sensing signal, the start value and the first to mth reference charge functions.
    Type: Application
    Filed: June 16, 2021
    Publication date: June 15, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Gi-Min Nam, Hyeong-Seok Kim, Tae-Hyun Hwang, Won-Tae Joe
  • Apparatus and method for programming and verifying data in a non-volatile memory device
    Patent number: 11676674
    Abstract: A memory device includes a cell group including a plurality of non-volatile memory cells capable of storing data and a control circuit configured to perform plural program loops for storing the data, each program loop including a program voltage application operation and a verification operation. During the respective program loop, the control circuit performs the verification operation for an N target level, an N?1 target level lower than the N target level, and an N+1 higher than the N target level, in response to the program voltage application operation for the N target level. When a quantity of non-volatile memory cells having threshold voltages over the N+1 target level satisfies a preset criterion, the control circuit skips a next verification for a target level lower than the N+1 target level, in response to a next program voltage application operation for the N+1 target level.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: June 13, 2023
    Assignee: SK hynix Inc.
    Inventors: Sung Hyun Hwang, Jin Haeng Lee
  • Catalyst and method for preparing the same
    Patent number: 11677089
    Abstract: The present specification relates to a carrier-nanoparticle complex, a catalyst including the same, an electrochemical cell or a fuel cell including the catalyst, and a method for preparing the same.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: June 13, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Ran Choi, Sang Hoon Kim, Gyo Hyun Hwang, Jun Yeon Cho, Kwanghyun Kim, Wonkyun Lee
  • MEMORY DEVICE PERFORMING REPAIR OPERATION
    Publication number: 20230178171
    Abstract: A memory device includes a fail test circuit configured to generate a fail flag indicating whether a failure was detected in a column line, on the basis of internal data outputted from the column line selected according to a column address, when performing a test, and control the fail flag to indicate that the failure was detected in the column line, on the basis of a fail control signal. The memory device also includes a repair information generation circuit configured to generate, from the column address, a repair column address for repairing the column line, on the basis of the fail flag.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 8, 2023
    Applicant: SK hynix Inc.
    Inventors: Yong Sun KIM, Mi Hyun HWANG
  • TOUCHSCREEN DISPLAYS
    Publication number: 20230168770
    Abstract: An embodiment method for operating an electronic device includes transmitting, from a controller, a tearing effect (TE) signal to a touchscreen over a first period of time, the first period of time occurring during a first frame and having a duration that is shorter than a period of the first frame, the TE signal being configured to restrict image data from being displayed on the touchscreen during the first period of time; displaying the first frame of a plurality of frames of the image data on a display of the touchscreen over a second period of time within the period of the first frame other than during the first period of time; and detecting, at the controller, a first touch by performing a first self-sensing scan during the first period of time.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 1, 2023
    Inventors: Sang Hoon Jeon, Myung Hyun Hwang, Sang Soo Lee
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN COMMUNICATION SYSTEM SUPPORTING MULTIPLE LINKS
    Publication number: 20230156795
    Abstract: Disclosed are a method and apparatus for transmitting and receiving data in a communication system supporting multiple links. A method for operation of a first device comprises the steps of: transmitting, in a first link from among multiple links, a first RTS frame to a second device; receiving, from the second device in the first link, a first CTS frame that is a response to the first RTS frame; when the first CTS frame is received, transmitting, in the first link, a first data frame to the second device; and transmitting, in a second link during transmission of the first data frame, a second RTS frame to the second device.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 18, 2023
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Sung Hyun HWANG, Kyu Min KANG, Jae Cheol PARK, Jin Hyung OH, Dong Woo LIM, Su Na CHOI, Yong Ho KIM, Han Seul HONG
  • Catalyst for oxidative dehydrogenation of butene and method for producing the same
    Patent number: 11648536
    Abstract: The present invention relates to a catalyst for oxidative dehydrogenation of butene and a method for producing the same. The catalyst for oxidative dehydrogenation of butene has a large amount of Mo—Bi phase acting as a reaction active phase on the surface, and therefore, can exhibit high catalytic activity, high conversion rate and high butadiene selectivity in the oxidative dehydrogenation of butene.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 16, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Ara Cho, Young Chang Byun, Gyo Hyun Hwang, Jungup Bang, Cheolock Song
  • Memory device and method of operating the same
    Patent number: 11636899
    Abstract: Provided herein may be a memory device capable of completing program operations for multiple pages in one ready/busy period. The memory device may include a plurality of memory cells configured to form a plurality of pages, a peripheral circuit configured to perform a first program operation and a second program operation and control logic configured to control the peripheral circuit to receive least significant bit (LSB) page data of a page adjacent to a selected page, center significant bit (CSB) page data, and most significant bit (MSB) page data of the selected page from a memory controller, and program the LSB page data of the page adjacent to the page adjacent to the selected page and to obtain LSB page data from the selected page, previously stored in the selected page, and program the LSB page data, the CSB page data and the MSB page data of the selected page to the selected page.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: April 25, 2023
    Assignee: SK hynix Inc.
    Inventors: Sung Hyun Hwang, Jin Haeng Lee
  • Display device, and method and apparatus for manufacturing the same
    Patent number: 11627670
    Abstract: A display device includes a cover window including a curved portion, and a panel member laminated on the cover window. A method of manufacturing a display device includes mounting a cover window including a curved portion on a first jig including a curved portion, mounting a panel member on a second jig that conforms to a surface of the first jig, and laminating the cover window to the panel member by moving a first one of the first jig or the second jig to a first other one of the first jig or the second jig. An apparatus for manufacturing a display device includes a first jig including a mount surface that is partially curved to conform to a surface of a cover window, a second jig including a surface conforming to the mount surface and configured to contact a panel member, and a driving unit.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Su Lee, Kwan-Young Han, Jong-Hwan Kim, Yong-Youl Cho, Young-Sik Kim, Yang-Han Son, Dae-Hyun Hwang
  • Semiconductor memory device and programming method thereof using a channel boosting
    Patent number: 11626172
    Abstract: The present technology relates to a semiconductor memory device and a method of operating the same. The semiconductor memory device includes a memory cell array including a plurality of memory blocks, a peripheral circuit configured to perform a program operation on a selected memory block among the plurality of memory blocks, and control logic configured to control the peripheral circuits to perform a retention acceleration operation including boosting a channel of a plurality of cell strings included in the selected memory block between a program voltage applying operation and a program verify operation during the program operation.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: April 11, 2023
    Assignee: SK hynix Inc.
    Inventors: Sung Hyun Hwang, Ju Eun Lim
  • Memory device for performing verify operation and operating method thereof
    Patent number: 11626173
    Abstract: A memory device having an improved operation speed includes: a memory cell; a page buffer connected to the memory cell through a bit line; and a program operation controller for controlling an operation of the page buffer. The page buffer includes: a bit line voltage supply for providing a precharge voltage to the bit line; a sensing node voltage supply for providing a sensing node precharge voltage to a sensing node connected to the bit line; a first latch for storing first verify data; a sensing node connector for releasing connection between the bit line and the sensing node, after the first verify data is stored; and a second latch for storing second verify data determined according to the voltage of the sensing node, after the connection between the bit line and the sensing node is released.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: April 11, 2023
    Assignee: SK hynix Inc.
    Inventors: Sung Hyun Hwang, Jin Haeng Lee
  • MEMORY DEVICE AND OPERATING METHOD OF THE MEMORY DEVICE
    Publication number: 20230108946
    Abstract: A memory device, and a method of operating the memory device, includes a memory block in which a plurality of cell pages are coupled to each of word lines. The memory device also includes a peripheral circuit configured to adjust a time point at which a verify voltage is applied to a selected word line among the word lines according to an order of performing a program operation during a verify operation of a selected cell page. The memory device further includes a control logic circuit configured to transmit, to the peripheral circuit, an operation code for adjusting a time point at which the verify voltage is output.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 6, 2023
    Applicant: SK hynix Inc.
    Inventors: Sung Hyun HWANG, Jae Yeop JUNG, Se Chun PARK
  • Mobile apparatus and control method thereof to control an object displayed on a target device
    Patent number: 11620824
    Abstract: In order to provide information related to content played on a target device within a visual field or a field of view (FOV) of the camera's, and to control the target device, a mobile apparatus according to an embodiment of present disclosure includes: a display; a camera configured to photograph a target device; a user interface configured to receive user's input; and a controller configured to control the display to display the image of the target device photographed by the camera and information related to an object included in the content being played by the target device in response to the user's input.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: April 4, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Young Choi, Min Sun Park, Sung Hyun Jang, Ji-Youn Han, Soo Hyun Hwang
  • Apparatus for performing a repair operation
    Patent number: 11621047
    Abstract: An apparatus includes a potential failure information generation circuit configured to generate potential failure inforrnation by detecting, based on first failure information on a first faded signal line and second failure information on a second faded signal line, whether the first failed signal line and the second faded signal line are adjacent to each other; and a flag generation circuit configured to generate a flag by comparing the potential failure information with redundancy repair information.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 4, 2023
    Assignee: SK hynix Inc.
    Inventors: Jeong Jun Lee, Soo Hwan Kim, Mi Hyun Hwang
  • DISPLAY DEVICE, AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME
    Publication number: 20230095460
    Abstract: A display device includes a cover window including a curved portion, and a panel member laminated on the cover window. A method of manufacturing a display device includes mounting a cover window including a curved portion on a first jig including a curved portion, mounting a panel member on a second jig that conforms to a surface of the first jig, and laminating the cover window to the panel member by moving a first one of the first jig or the second jig to a first other one of the first jig or the second jig. An apparatus for manufacturing a display device includes a first jig including a mount surface that is partially curved to conform to a surface of a cover window, a second jig including a surface conforming to the mount surface and configured to contact a panel member, and a driving unit.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Kyung-Su Lee, Kwan-Young Han, Jong-Hwan Kim, Yong-Youl Cho, Young-Sik Kim, Yang-Han Son, Dae-Hyun Hwang
  • MEMORY DEVICE AND OPERATING METHOD OF THE MEMORY DEVICE
    Publication number: 20230102395
    Abstract: A memory device may include: a control circuit suitable for performing a program loop including a program operation including a program voltage application operation on a selected word line and a bit line setup operation on a plurality of bit lines and a verification operation of applying (N?1) first verification voltages to the selected word line according to a predetermined order to check N types of first program states for each of a plurality of memory cells included in the selected word line; and control logic suitable for controlling the control circuit to repeatedly perform the program loop until programming for the selected word line is completed, and controlling the control circuit to apply any one of N types of column voltages to each of the plurality of bit lines in the bit line setup operation included in a second program loop.
    Type: Application
    Filed: March 23, 2022
    Publication date: March 30, 2023
    Applicant: SK hynix Inc.
    Inventors: Yeong Jo MUN, Sung Hyun HWANG