Patents by Inventor Gang Won Lee

Gang Won Lee 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: 20230231675
    Abstract: Devices, systems and methods for a fifth generation (5G) or new radio (NR) system comprising multiplexing, by a gNodeB (gNB), a physical broadcast channel (PBCH) and an associated demodulation reference signal (DMRS) in a time division multiplexing (TDM) manner; and transmitting, by the gNB, the PBCH by employing a Discrete Fourier Transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveform and its associated DMRS.
    Type: Application
    Filed: March 24, 2023
    Publication date: July 20, 2023
    Inventors: Gang XIONG, Dae Won LEE, Gregory MOROZOV, Yushu ZHANG, Jie ZHU
  • Publication number: 20230224835
    Abstract: An apparatus of a user equipment (UE) includes processing circuitry, where to configure the UE for New Radio (NR) communications above a 52.6 GHz carrier frequency, the processing circuitry is to decode higher layer signaling, the higher layer signaling including a default slot duration for a transmission of control signaling. The control signaling includes a synchronization signal (SS) and a physical broadcast channel (PBCH) signaling. Synchronization information within a SS block is decoded. The SS block is received within a SS burst set and occupying a plurality of symbols within a slot having the default slot duration. A synchronization procedure is performed with a next generation Node-B (gNB) based on the synchronization information within the SS block and the PBCH signaling.
    Type: Application
    Filed: November 21, 2022
    Publication date: July 13, 2023
    Inventors: Gang Xiong, Avik Sengupta, Yushu Zhang, Jie Zhu, Dae Won Lee, Alexei Vladimirovich Davydov, Gregory Vladimirovich Morozov
  • Publication number: 20230171141
    Abstract: Systems, methods, and circuitries are disclosed for generating demodulation reference signals (DM-RS). In one example, a method for a user equipment (UE), includes receiving a configuration of a plurality of bandwidth parts (BWPs) configured with respective numerologies; generating a first pseudo-random sequence based at least in part on one or more of a physical cell ID, a virtual cell ID, a symbol index, a slot index, a frame index, a scrambling ID, or a UE ID for generation of a first DM-RS sequence, wherein a initialization seed for the first pseudo-random sequence is based on a scrambling ID and a slot index, wherein, for the plurality of BWPs a respective scrambling ID is associated with each BWP, and wherein the slot index is defined in accordance with the numerology of the associated BWP; and mapping, for a first BWP, the first DM-RS sequence to at least one DM-RS symbol.
    Type: Application
    Filed: January 25, 2023
    Publication date: June 1, 2023
    Inventors: Gang Xiong, Debdeep Chatterjee, Yushu Zhang, Alexei Davydov, Wook Bong Lee, Dae Won Lee, Sameer Pawar, Jeongho Jeon, Hong He
  • Patent number: 11663951
    Abstract: Provided is a technology for resolving a mura phenomenon in a display panel to which gamma is applied, in which demura compensation values are generated in a log domain to improve a problem of nonlinearity due to gamma.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: May 30, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Jun Young Park, Do Yeon Kim, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee
  • Patent number: 11659564
    Abstract: Embodiments herein may relate to transmission, in a first physical channel transmission, of an indication of a first set of parameters related to a control channel; and transmission, in a control channel transmission using the first set of parameters, of an indication of a second set of parameters related to the control channel. Further embodiments may relate to identifying a first parameter related to interleaving REGBs of a PDCCH transmission, wherein the first parameter is selected from a first plurality of parameters; interleaving the REGBs based on the first parameter to form a CCE; and transmitting the CCE in the PDCCH transmission. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: May 23, 2023
    Assignee: Apple Inc.
    Inventors: Yongjun Kwak, Honglei Miao, Debdeep Chatterjee, Gang Xiong, Hong He, Dae Won Lee
  • Publication number: 20230118591
    Abstract: The present disclosure discloses a display driving apparatus having a mura compensation function and a method of compensating for mura of the same. To this end, the display driving apparatus may include a mura memory in which compensation data corresponding to coefficient values of a mura compensation equation is stored, and a mura compensation circuit configured to perform mura compensations on display data by using the mura compensation equation to which the compensation data has been applied.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 20, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Jung Hyun KIM, Suk Ju KANG, Sung In CHO
  • Publication number: 20230073179
    Abstract: The present disclosure discloses an apparatus and method for providing compensation information, which compress the compensation information for demura and a display driving apparatus for solving a defect in a screen by using compressed compensation information. The apparatus for providing compensation information includes a compensation value provision unit configured to provide compensation values of pixels and a compression unit configured to perform compression on the compensation values for each block of a screen.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 9, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Suk Ju KANG, Joo Sung CHOI
  • Publication number: 20220415240
    Abstract: A voltage drop compensation system and a display driving device for compensating for a voltage drop of a display panel. The voltage drop compensation system generates a voltage drop compensation value for each of a plurality of regions into which a test image of a panel is divided, and the display driving device compensates for a voltage drop for each region of image data using the voltage drop compensation value.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 29, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ju Hyoung LIM, Ji Won LEE
  • Patent number: 11398176
    Abstract: A Mura compensation data generation apparatus for compensating for Mura, and a Mura compensation apparatus of a display using Mura compensation data. The Mura compensation data generation apparatus includes an image representative value generation circuit configured to generate a representative value representing an entire gray of an image; a difference value extraction circuit configured to extract difference values between the representative value and gray values for a plurality of preset positions on the image; a distribution range determination circuit configured to determine a distribution range of the difference values by checking a maximum value and a minimum value of the difference values; and a Mura compensation data generation circuit configured to generate Mura compensation data having a preset number of bits corresponding to the difference values.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: July 26, 2022
    Assignee: LX Semicon Co., Ltd.
    Inventors: Do Yeon Kim, Jun Young Park, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee
  • Publication number: 20220180788
    Abstract: A Mura compensation data generation apparatus for compensating for Mura, and a Mura compensation apparatus of a display using Mura compensation data. The Mura compensation data generation apparatus includes an image representative value generation circuit configured to generate a representative value representing an entire gray of an image; a difference value extraction circuit configured to extract difference values between the representative value and gray values for a plurality of preset positions on the image; a distribution range determination circuit configured to determine a distribution range of the difference values by checking a maximum value and a minimum value of the difference values; and a Mura compensation data generation circuit configured to generate Mura compensation data having a preset number of bits corresponding to the difference values.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Applicant: LX Semicon Co., Ltd.
    Inventors: Do Yeon KIM, Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE
  • Publication number: 20220172664
    Abstract: A data processing circuit according to an embodiment may include a reception circuit configured to receive image data including grayscale values associated with pixels disposed in a display panel. The data processing circuit may include a compensation circuit configured to calculate a final compensation value by multiplying a representative compensation value of each area and a global gain, and to produce converted image data. The data processing circuit may include a memory storing a representative compensation value associated with a grayscale value of each area of the display panel, and may include a transmission circuit configured to transmit the converted image data to a data driving circuit.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 2, 2022
    Inventors: Jun Young Park, Do Yeon Kim, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee
  • Publication number: 20220165201
    Abstract: Provided is a technology for resolving a mura phenomenon in a display panel to which gamma is applied, in which demura compensation values are generated in a log domain to improve a problem of nonlinearity due to gamma
    Type: Application
    Filed: November 19, 2021
    Publication date: May 26, 2022
    Inventors: Jun Young Park, Do Yeon Kim, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee