Patents by Inventor Ki Chang

Ki 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).

  • Patent number: 11991366
    Abstract: The in-loop filtering method performed by a video decoding apparatus includes: classifying reconstructed samples according to an absolute classification standard or relative classification standard; acquiring offset data on the basis of results of classifying the reconstructed samples; adding an offset value to the reconstructed samples by referencing the acquired offset data; and outputting the offset value-added reconstructed samples. Accordingly, W errors in the reconstructed image can be corrected.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: May 21, 2024
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Ki Baek Kim, Je Chang Jeong
  • Publication number: 20240160400
    Abstract: In a sound system that uses over-the-air (OTA), a blockchain platform server is configured to support performance of a virtual sound transaction in a virtual environment. An OTA server is configured to manage a virtual sound transmitted from the blockchain platform server. A vehicle communication control device is configured to perform wireless communication with the OTA server. The vehicle communication control device is configured to download the virtual sound from the OTA server, determine whether the virtual sound is similar to a predetermined specific sound, perform an OTA state test of the virtual sound when the virtual sound is not similar to the predetermined specific sound, and control a sound processing device to play the virtual sound when the virtual sound passes the OTA state test.
    Type: Application
    Filed: March 24, 2023
    Publication date: May 16, 2024
    Inventors: Ki Chang Kim, Dong Chul Park, Eun Soo Jo, Sang Jin Hong
  • Publication number: 20240143141
    Abstract: The present disclosure generally relates to underwater user interfaces.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 2, 2024
    Inventors: Benjamin W. BYLENOK, Alan AN, Richard J. BLANCO, Andrew CHEN, Maxime CHEVRETON, Kyle B. CRUZ, Walton FONG, Ki Myung LEE, Sung Chang LEE, Cheng-I LIN, Kenneth H. MAHAN, Anya PRASITTHIPAYONG, Alyssa RAMDYAL, Eric SHI, Xuefeng WANG, Wei Guang WU
  • Patent number: 11969028
    Abstract: A brassiere for radiation therapy is disclosed. The brassiere for radiation therapy according to an embodiment of the present disclosure includes a pair of cups configured to cover breasts of a patient; a coupling member positioned between the pair of cups and configured to couple the pair of cups to each other; back bands configured to be in close contact with a back of the patient; and side compression bands, the side compression bands having one ends coupled to the pair of cups at the coupling member, respectively, and the other ends detachably coupled to the back bands, respectively, wherein positions of the breasts of the patient are changed by adjusting positions on the back bands to which the other ends of side compression bands are coupled.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: April 30, 2024
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Ki Chang Keum, Seung Kwon Ahn, Sam Ju Cho, Yong Bae Kim
  • Patent number: 11974115
    Abstract: An active sound design (ASD) tuning device and a method thereof may include an ASD device that generates a virtual engine sound for each vehicle situation and a control device that outputs a composite sound by correcting and synthesizing the virtual engine sound and an internal sound measured for each vehicle situation based on a binaural vehicle impulse response (BVIR).
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: April 30, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ki Chang Kim, Dong Chul Park, Eun Soo Jo, Jin Sung Lee
  • Patent number: 11946607
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; light sources disposed on the substrate; and a resin layer disposed on the substrate and the light sources. a first reflective layer disposed on the resin layer, wherein the resin layer includes an exit surface facing the light sources, and the exit surface of the resin layer includes convex portions facing each of the light sources and recess portions respectively disposed between the plurality of convex portions, concave surfaces disposed in each of the plurality of recess portions may have a curvature, and a radius of curvature of the concave surfaces may increase in one direction.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: April 2, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Young Jae Choi, Dong Hyun Lee, Ki Chang Lee, Gyeong Il Jin, Moo Ryong Park
  • Patent number: 11949865
    Abstract: An image encoding/decoding method using a pixel value range constituting an image is disclosed, wherein the image decoding method using a pixel value range constituting an image comprises the steps of: receiving a bitstream; acquiring information of a pixel value range forming a first unit image included in the received bitstream; and decoding the first unit image on the basis of the acquired information of the pixel value range. Therefore, compression efficiency can be improved in an image encoding or decoding process.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: April 2, 2024
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Ki Baek Kim, Je Chang Jeong
  • Publication number: 20240107029
    Abstract: Disclosed is a decoding method which uses an intra-screen prediction. A decoding method which uses an intra prediction performed in a decoding apparatus comprises the steps of: receiving a bit stream; obtaining decoding information from the received bit stream; generating a prediction block for a current block to be decoded using the obtained decoding information; and restoring the current block by adding a residual block obtained from the bit stream and the prediction block. Accordingly, a compression ratio of an image can be improved.
    Type: Application
    Filed: October 5, 2023
    Publication date: March 28, 2024
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Je Chang JEONG, Ki Baek KIM
  • Publication number: 20240098275
    Abstract: A method for decoding an image based on an intra prediction, comprising: obtaining a first prediction pixel of a first region in a current block by using a neighboring pixel adjacent to the current block; obtaining a second prediction pixel of a second region in the current block by using the first prediction pixel of the first region; and decoding the current block based on the first and the second prediction pixels.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 21, 2024
    Inventors: Je Chang JEONG, Ki Baek KIM, Won Jin LEE, Hye Jin SHIN, Jong Sang YOO, Jang Hyeok YUN, Kyung Jun LEE, Jae Hun KIM, Sang Gu LEE
  • Publication number: 20240092374
    Abstract: A system of controlling a vehicle may include a sensor and a controller, in which the sensor may be configured to sense vehicle operation state information, and the controller may be configured to determine whether a vehicle is running on a dangerous road based on the sensed vehicle operation state information, determine whether there is a possibility that a vehicle driving state will cause a failure of a driving system based on the sensed vehicle operation state information in response to determining that the vehicle is running on the dangerous road, and decide that torque control of the vehicle.
    Type: Application
    Filed: December 8, 2022
    Publication date: March 21, 2024
    Inventors: Bao Wen You, Sun Woo Park, Young Joon Chang, Xiaobin Ma, Xuejiao Sun, Yuzhao Wei, Woon Ki Cho, Xiao Tong Yan
  • Publication number: 20240097312
    Abstract: An antenna module comprises: a first printed circuit board including a circuit pattern; an IC chip disposed on the first printed circuit board; a solder part disposed on the first printed circuit board; a dielectric layer disposed on the first printed circuit board and surrounding the IC chip and the solder part; and an antenna patterned on the upper surface of the dielectric layer and connected to the solder part, wherein at least a portion of the solder part protrudes up higher than the upper surface of the dielectric layer.
    Type: Application
    Filed: January 11, 2022
    Publication date: March 21, 2024
    Inventors: Sang Ki EUN, Jeong Hun CHANG
  • Patent number: 11937421
    Abstract: Provided is a semiconductor memory device and method of fabricating the semiconductor memory device. A semiconductor memory device includes a gate stack and a plurality of channel structures. The gate stack includes a plurality of stacked conductive patterns spaced apart from each other. The plurality of the channel structures is formed through the gate stack. Each of the channel structures includes a first channel pillar, a second channel pillar and a gate insulation layer. The first channel pillar is formed through the conductive patterns except for an uppermost conductive pattern. The second channel pillar is formed through the uppermost conductive pattern. The second channel pillar is configured to make contact with the first channel pillar. The gate insulation layer is interposed between the uppermost conductive pattern and the first and second channel pillars.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: March 19, 2024
    Assignee: SK hynix Inc.
    Inventors: Ki Chang Jeong, Nam Kuk Kim
  • Publication number: 20240084145
    Abstract: Disclosed are a pearlescent pigment and a preparation method therefor, wherein the pigment has a multilayered structure including a low-refractive index material layer between high-refractive index material layers on a glass flake substrate and thus has high color intensity, various colors depending on the viewing angle, and an improved sparkling effect. The pearlescent pigment according to the present invention comprises: a glass flake substrate having a D10 value of 40-80 ?m, a D50 value of 160-250 ?m, and a D90 value of 350-600 ?m and a thickness of 500 nm or more; and a metal oxide layer coated on the substrate, the metal oxide layer having a structure of a first metal oxide layer/an intermediate oxide layer containing MgO·SiO2/a second metal oxide layer.
    Type: Application
    Filed: June 28, 2022
    Publication date: March 14, 2024
    Inventors: Jae Il JEONG, Kwang Choong KANG, Byung Ki CHOI, Kwang Soo LIM, Kil Wan CHANG
  • Patent number: 11919446
    Abstract: An apparatus and a method for generating a sound of an electric vehicle are provided. The apparatus determines whether a current condition may be a regenerative braking condition, generates a regenerative braking sound based on an amount of change in motor torque in the regenerative braking condition, and outputs the generated regenerative braking sound.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: March 5, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ki Chang Kim, Dong Chul Park
  • Patent number: 11904769
    Abstract: A system for generating a virtual engine sound may include a server having information on at least one review of the virtual engine sound, and a virtual engine sound generator to generate “my sound” by tuning the virtual engine sound based on information on customized design settings, to update a preset driver emotion model for each emotion evaluation area of the virtual engine sound, based on the information on the at least one review of the virtual engine sound, which is received from the server, and to update the virtual engine sound based on the “my sound” and the driver emotion model updated for each emotion evaluation area.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: February 20, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ki Chang Kim, Dong Chul Park, Eun Soo Jo, Jin Sung Lee
  • Publication number: 20240055146
    Abstract: Disclosed is scattered ray-shielding underwear for radiation therapy. The scattered ray-shielding underwear for radiation therapy, according to an embodiment of the present disclosure, comprises an outer underwear formed of a first shielding material and an inner underwear formed of a second shielding material, wherein the first shielding material has a greater atomic number than the second shielding material, and thus, during radiation therapy, the outer underwear can shield scattered rays generated by high-energy radiation, and the inner underwear can shield braking radiation, and exposure of a patient to scattered rays and braking radiation can be almost completely blocked.
    Type: Application
    Filed: March 2, 2022
    Publication date: February 15, 2024
    Inventors: Ki Chang KEUM, Seung Kwon AHN, Yong Bae KIM, Dong Min SON
  • Patent number: 11893973
    Abstract: Disclosed is a sound design method for overcoming sense of difference when there is no virtual sound while an auto cruise control is activated. The method includes determining whether an accelerator pedal is actuated; upon determining that the accelerator pedal is not actuated, determining whether an auto cruise control system is operating; upon determining whether the auto cruise control system is operating, classifying a vehicle speed-based order component from a driving sound; and reproducing a speed sensitive virtual sound based on the classified vehicle speed-based order component.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: February 6, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ki Chang Kim, Tae Kun Yun, Dong Chul Park, Eun Soo Jo, Jin Sung Lee
  • Publication number: 20240025302
    Abstract: Disclosed is a method for controlling a fuel cell of a fuel cell vehicle. The method comprises determining a reference output required for restarting or stopping power generation of a fuel cell according to a required output of a vehicle, correcting the reference output based on vehicle driving condition information comprising a vehicle altitude and coolant temperature and degree of degradation of the fuel cell, and restarting or stopping the power generation of the fuel cell based on the corrected reference output.
    Type: Application
    Filed: December 6, 2022
    Publication date: January 25, 2024
    Inventors: Seung Won Baik, Jong Bin Kang, Sang Beom Lee, Ki Chang Kim, Seung Min Song
  • Publication number: 20240008786
    Abstract: A multisensory index system and an operation method thereof are provided. The multisensory index system is configured to derive quantitative parameters and qualitative parameters associated with an auditory sense and a tactile sense, and generate a multisensory index by analyzing a correlation between the quantitative parameters and the qualitative parameters associated with the auditory sense and the tactile sense.
    Type: Application
    Filed: November 5, 2022
    Publication date: January 11, 2024
    Inventors: Ki Chang Kim, Dong Chul Park, Eun Ju Jeong, Ji Yeon Shin
  • Publication number: 20240009421
    Abstract: An emotional care apparatus based on a sound and a method thereof are provided. The emotional care apparatus includes a sound output device that outputs a sound to speakers and a processor electrically connected with the sound output device. The processor selects an emotional care mode, separates a sound source for each instrument from music content based on the emotional care mode, distributes the sound source for each instrument to the speakers, and controls the sound output device to play and output the sound source for each instrument to the distributed speakers.
    Type: Application
    Filed: November 5, 2022
    Publication date: January 11, 2024
    Inventors: Ki Chang Kim, Tae kun Yun, Eun Soo Jo, Dong Chul Park, Eun Ju Jeong, Ji Yeon Shin