Patents by Inventor Sung Chang

Sung Chang 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: 20250119559
    Abstract: An image encoding/decoding method and apparatus are disclosed. The method of decoding an image according to the present invention, comprises, obtaining a single stream including subpicture information of a plurality of subpictures; selecting a subpicture to be extracted from among the plurality of subpictures; determining the single stream as a stream to be extracted and obtaining a sub stream for the subpicture to be extracted from the stream to be extracted, by removing or using at least one piece of subpicture information included in the stream to be extracted.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 10, 2025
    Inventors: Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Dae Yeon KIM, Ju Ock LEE
  • Publication number: 20250114910
    Abstract: A method of fabrication of a substrate includes, after deposition of an outer layer on a substrate and before polishing of an exposed surface of the outer layer of the substrate, performing a hydroblasting treatment of a selected portion of the exposed surface by directing a treatment liquid from a nozzle at a sufficiently high velocity onto the selected portion to remove material from the selected portion such that a thickness non-uniformity of the outer layer is reduced. Then the outer layer of the treated substrate is subject to chemical mechanical polishing to planarize and reduce a thickness of the outer layer.
    Type: Application
    Filed: October 2, 2024
    Publication date: April 10, 2025
    Inventors: Priscilla Diep LaRosa, Haosheng Wu, Jeonghoon Oh, Andrew Siordia, Taketo Sekine, Shou-Sung Chang, Jianshe Tang
  • Patent number: 12273538
    Abstract: Disclosed are a method and an apparatus for coding/decoding an image. The method for decoding the image comprises the steps of: deriving a scale factor of a current block, depending on whether the current block is a conversion skip block; and scaling the current block on the basis of the scale factor, wherein the scale factor of the current block is derived on the basis of the position of a conversion coefficient inside the current block, and wherein the conversion skip block is the current block to which conversion is not applied and is specified on the basis of information indicating whether to apply reconversion to the current block.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: April 8, 2025
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hui Yong Kim, Sung Chang Lim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Gwang Hoon Park, Kyung Yong Kim
  • Patent number: 12273510
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: April 8, 2025
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dong San Jun, Jin Ho Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Ha Hyun Lee, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Publication number: 20250113030
    Abstract: The present specification discloses a method of decoding an image. The method of decoding an image according to the method includes: obtaining transform skip information of a current block from a bitstream; obtaining multiple transform selection information of the current block on the basis of the transform skip information from the bitstream; and performing inverse transform on the current block on the basis of the multiple transform selection information, wherein the multiple transform selection information is used to set each of a horizontal transform type and a vertical transform type.
    Type: Application
    Filed: December 12, 2024
    Publication date: April 3, 2025
    Inventors: Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Byeung Woo JEON, Jee Yoon PARK
  • Publication number: 20250109082
    Abstract: The present invention provides: an ethylene oligomerization method in which an ethylene oligomer is produced by reacting a chromium complex, an organic aluminium compound, and an organic zinc compound with ethylene; and the ethylene oligomer thereof.
    Type: Application
    Filed: September 23, 2022
    Publication date: April 3, 2025
    Inventors: Kye Sung CHO, Dong Geun LEE, Sang Joon OH, Ho Sik CHANG, Jin Suk LEE
  • Publication number: 20250110307
    Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.
    Type: Application
    Filed: December 12, 2024
    Publication date: April 3, 2025
    Inventors: Chao-Chang HU, Chih-Wei WENG, Chia-Che WU, Chien-Yu KAO, Hsiao-Hsin HU, He-Ling CHANG, Chao-Hsi WANG, Chen-Hsien FAN, Che-Wei CHANG, Mao-Gen JIAN, Sung-Mao TSAI, Wei-Jhe SHEN, Yung-Ping YANG, Sin-Hong LIN, Tzu-Yu CHANG, Sin-Jhong SONG, Shang-Yu HSU, Meng-Ting LIN, Shih-Wei HUNG, Yu-Huai LIAO, Mao-Kuo HSU, Hsueh-Ju LU, Ching-Chieh HUANG, Chih-Wen CHIANG, Yu-Chiao LO, Ying-Jen WANG, Shu-Shan CHEN, Che-Hsiang CHIU
  • Publication number: 20250108476
    Abstract: A chemical mechanical polishing system includes a support to hold a polishing pad, a carrier head to hold a substrate against the polishing pad during a polishing process, an in-situ monitoring system configured to generate a signal indicative of an amount of material on the substrate, a temperature control system to control a temperature of the polishing process, and a controller coupled to the in-situ monitoring system and the temperature control system. The controller is configured to cause the temperature control system to vary the temperature of the polishing process in response to the signal.
    Type: Application
    Filed: December 11, 2024
    Publication date: April 3, 2025
    Inventors: Haosheng Wu, Hari Soundararajan, Yen-Chu Yang, Jianshe Tang, Shou-Sung Chang, Shih-Haur Shen, Taketo Sekine
  • Publication number: 20250112081
    Abstract: Disclosed is a vacuum chuck and a method for securing a warped semiconductor substrate during a semiconductor manufacturing process so as to improve its flatness during a semiconductor manufacturing process. For example, a semiconductor manufacturing system includes: a vacuum chuck configured to hold a substrate, wherein the vacuum chuck comprises, a plurality of vacuum grooves located on a top surface of the vacuum chuck, wherein the top surface is configured to face the substrate; and a plurality of flexible seal rings disposed on the vacuum chuck and extending outwardly from the top surface, wherein the plurality of flexible seal rings are configured to directly contact a bottom surface of the substrate and in adjacent to the plurality of vacuum grooves so as to form a vacuum seal between the substrate and the vacuum chuck, and wherein each of the plurality of flexible seal rings has a zigzag cross section.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Inventors: Chien-Fa LEE, Chin-Lin CHOU, Shang-Ying TSAI, Shou-Wen KUO, Kuei-Sung CHANG, Jiun-Rong PAI, Hsu-Shui LIU, Chun-wen CHENG
  • Patent number: 12267492
    Abstract: The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise decoding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.
    Type: Grant
    Filed: December 28, 2023
    Date of Patent: April 1, 2025
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Dong San Jun, Hyun Suk Ko, Jin Ho Lee, Hui Yong Kim
  • Patent number: 12266933
    Abstract: A power trading system of virtual power plant includes a plurality of virtual power plants connected to a power system and including a distributed energy resource; a heat conversion device connected to the power system and converting the power generated from the plurality of distributed energy resources into thermal energy; and a power trading device configured to analyze an excess and insufficient power amount of the plurality of virtual power plant due to an output variation of the distributed energy resource, control power trading between the plurality of virtual power plant, the power system, or the heat conversion device by using the analysis result of the excess and insufficient power amount to stabilize the output of the power system and the virtual power plant.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: April 1, 2025
    Assignee: KOREA DISTRICT HEATING CORP.
    Inventors: Ja Kyun Koo, Tae Seon Eom, Yong Ha Lee, Min Sung Ko, Dong Hwan Chang
  • Publication number: 20250105161
    Abstract: A semiconductor device package includes a number of interposers mounted to the carrier, wherein the number of interposers may be arranged in an irregular pattern.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventors: Hao-Chih HSIEH, Tun-Ching PI, Sung-Hung CHIANG, Yu-Chang CHEN
  • Publication number: 20250106425
    Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Applicants: Electronics and Telecommunications Research Institute, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Ho KIM, Hui Yong KIM, Se Yoon JEONG, Sung Chang LIM, Ha Hyun LEE, Jin Ho LEE, Suk Hee CHO, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Mun Churl KIM, Bum Shik LEE
  • Publication number: 20250106389
    Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Applicants: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hui Yong KIM, Gwang Hoon PARK, Kyung Yong KIM, Sang Min KIM, Sung Chang LIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM
  • Publication number: 20250100916
    Abstract: A method for removing inorganic substances from wastewater is provided. The method includes: providing a fluidized bed reactor, wherein carriers are added into the fluidized bed reactor, and the carriers includes polyvinylidene fluoride (PVDF), ethylene tetrafluoroethylene (ETFE), alumina (Al2O3) with purity more than 95 wt %, or combinations thereof; introducing the wastewater containing the inorganic substances and a first reagent into the fluidized bed reactor; fluidizing the carriers in the fluidized bed reactor, and making the inorganic substances in the wastewater reacting with the first reagent to form crystals, wherein the crystals are formed on the outer surfaces of the carriers.
    Type: Application
    Filed: February 7, 2024
    Publication date: March 27, 2025
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Mao-Sung LEE, Teh-Ming LIANG, Wang-Kuan CHANG
  • Publication number: 20250106409
    Abstract: The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise dividing a coding unit into a plurality of sub-units according to a block division structure and performing decoding based on the sub-unit, wherein the block division structure is a block division structure in which division is performed so as to include at least one sub-unit having a predetermined block form other than square and rectangle forms.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Inventors: Dong San JUN, Ha Hyun LEE, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM
  • Publication number: 20250106913
    Abstract: Provided a virtual Layer 2 (L2) switch for providing a virtual L2 switch service to a factory network that includes at least one control device connected to the factory network through an L2 network and industrial terminals connected to the factory network through a wireless mobile network.
    Type: Application
    Filed: September 26, 2024
    Publication date: March 27, 2025
    Applicant: KT CORPORATION
    Inventors: Jin-Geun LEE, Sung-Gyun KANG, Il-Yong KIM, Tae-Young SHIN, Won-Chang CHO
  • Publication number: 20250106429
    Abstract: An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Inventors: Hui Yong KIM, Jin Ho LEE, Sung Chang LIM, Jin Soo CHOI, Jin Woong KIM
  • Patent number: 12260599
    Abstract: Disclosed is a data transmission system that transmits data by using a relay. The relay selects a transmission terminal from among a plurality of terminals accessing a base station. A base station transmits base station data to the relay during a first time slot, and the transmission terminal transmits terminal data to the relay. The relay transmits terminal data to the base station during a second time slot, and transmits base station data to the transmission terminal.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: March 25, 2025
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Sung Chang Lim, Se Yoon Jeong, Hae Chul Choi, Jin Soo Choi, Jin Woo Hong, Yung Lyul Lee, Dae Yeon Kim
  • Patent number: 12262001
    Abstract: An image encoding/decoding method and apparatus are provided. An image encoding method performed by an image encoding apparatus may comprise determining an intra-prediction mode of a current block, configuring a reference sample of intra prediction by using at least one of a neighbor pixel of the current block in a current picture and a pixel of a reference picture, and performing intra prediction for the current block based on the intra-prediction mode and the reference sample.
    Type: Grant
    Filed: October 2, 2023
    Date of Patent: March 25, 2025
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi, Gwang Hoon Park, Tae Hyun Kim, Dae Young Lee