Patents by Inventor Seung Hyun Cho

Seung Hyun Cho 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: 20220311591
    Abstract: Provided are a Kramers—Kronig (KK) reception-based terahertz (THz) signal reception apparatus and a method for compensating a frequency offset using the same. A method of compensating for a frequency offset performed by a THz signal reception apparatus includes receiving, from a THz signal transmission apparatus, a THz signal including carrier signals corresponding to three different frequency bands, extracting, from the received THz signal, a reference carrier included in the THz signal or a sampling clock generated in a process of generating a data signal, and compensating for a frequency offset generated in a process of transmitting the THz signal by using the extracted reference carrier or sampling clock.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 29, 2022
    Inventors: Minkyu SUNG, Eon-sang KIM, Sang Rok MOON, Seung-Hyun CHO
  • Publication number: 20220299654
    Abstract: Disclosed are a method for modulation of a variable binary offset carrier (VBOC) having a discrete time-variant frequency and a satellite navigation signal generator using the same. The method for modulation of a VBOC having a discrete time-variant frequency may comprise: generating navigation message data; generating a carrier; generating a VBOC subcarrier; generating a pseudo-random code; synthesizing the pseudo code and the VBOC subcarrier; and synthesizing a synthesized signal of the pseudo code and the VBOC subcarrier, the carrier, and the navigation message data.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 22, 2022
    Inventors: Sang Uk LEE, Seung Hyun KONG, Sang Jae CHO, Tai Sun KIM, Seung Hwan CHUNG
  • Publication number: 20220303017
    Abstract: Provided are an apparatus and method of generating a terahertz (THz) signal using a directly-modulated laser. An apparatus of generating a THz signal includes a first directly-modulated laser configured to output a local oscillator (LO) signal, a second directly-modulated laser configured to receive a baseband signal used as data and optically modulate the baseband signal, a band-pass filter configured to filter a spectral component of the baseband signal optically modulated and outputted through the second directly-modulated laser by using a specific frequency bandwidth, a coupler configured to couple the baseband signal filtered through the band-pass filter and the LO signal to each other, and a uni-travelling-carrier photodiode (UTC-PD) configured to generate a THz signal by beating the baseband signal and the LO signal coupled to each other.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 22, 2022
    Inventors: Eon-sang KIM, Sang Rok MOON, Minkyu SUNG, Seung-Hyun CHO
  • Publication number: 20220277491
    Abstract: Disclosed herein are a method and apparatus for image compression based on machine learning using a global context. The disclosed image compression network employs an existing image quality enhancement network for an end-to-end joint learning scheme. The image compression network may jointly optimize image compression enhancement and quality enhancement. The image compression networks and image quality enhancement networks may be easily combined within a unified architecture which minimizes total loss, and may be easily jointly optimized.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 1, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Joo-Young LEE, Seung-Hyun CHO, Hyunsuk KO, Hyoung-Jin KWON, Youn-Hee KIM, Jong-Ho KIM, Se-Yoon JEONG, Hui-Yong KIM, Jin-Soo CHOI
  • Patent number: 11430912
    Abstract: A light emitting element, a method of manufacturing a light emitting element, and a display device including a light emitting element are provided. A method of manufacturing a light emitting element includes: preparing a lower panel including a substrate and a first sub conductive semiconductor layer on the substrate; forming a first mask layer including at least one mask pattern on at least a part of the lower panel to be spaced apart from each other and an opening region in which the mask patterns are spaced apart from each other; laminating a first conductive semiconductor layer, an active material layer, and a second conductive semiconductor layer on the first mask layer to form an element laminate; etching the element laminate in a vertical direction to form an element rod; and removing the mask pattern to separate the element rod from the lower panel.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: August 30, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Hong Min, Dae Hyun Kim, Seung A Lee, Hyun Min Cho, Jong Hyuk Kang, Dong Uk Kim, Hyun Deok Im, Hyung Rae Cha
  • Publication number: 20220270553
    Abstract: A display device includes: a display area including pixels for displaying an image; a non-display area adjacent to the display area; scan lines connected to the pixels; a first scan driver circuit disposed in the non-display area, where the first scan driver circuit is connected to first scan lines among the scan lines, and outputs first scan signals to the first scan lines; and a second scan driver circuit disposed in the non-display area, where the second scan driver circuit is connected to second scan lines among the scan lines, and outputs second scan signals to the second scan lines. The second scan driver circuit is disposed farther away from the display area than the first scan driver circuit is.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Inventors: Tae Hyun KIM, Jong Hyun CHOI, Seung Hwan CHO
  • Patent number: 11413935
    Abstract: The present invention relates to a coolant heater. The purpose of the present invention, a coolant heater which effectively heats coolant of a vehicle by means of a heating unit, is to provide a coolant heater having improved sensitivity and responsiveness to over-heating and assured stability by utilizing a temperature fuse to prevent over-heating. Another purpose of the present invention is to provide a coolant heater having enhanced durability of the temperature fuse coupling part by improving the structure by which the temperature fuse is fixed.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 16, 2022
    Assignees: Hanon Systems, DAEWOO ELECTRONIC COMPONENTS CO., LTD.
    Inventors: Yong Ha Chae, Ji Hoon Park, Jeong Hyun Son, Man Ok Lee, Bok Sun Kang, Young Chul Kim, Hak Kyu Kim, Yong Jin Moon, Seung Ho Lee, Kil Sang Jang, Hyun Seok Jung, Kyung Seok Cho
  • Publication number: 20220254959
    Abstract: A light emitting element having a shape extending in a direction includes a first semiconductor layer and a second semiconductor layer, an active layer between the first and second semiconductor layers, a first electrode layer on a second surface opposite to a first surface of the first semiconductor layer facing the active layer, a second electrode layer on a second surface opposite to a first surface of the second semiconductor layer facing the active layer, and an insulating film surrounding a side surface of the active layer, a side surface of the first electrode layer, and a side surface of the second electrode layer, wherein a first area including the insulating film adjacent to a side surface of the active layer has a thickness larger than a thickness of a second area including the insulating film adjacent to a side surface of the first electrode layer.
    Type: Application
    Filed: June 3, 2020
    Publication date: August 11, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung Geun LEE, Dong Uk KIM, Dae Hyun KIM, Se Young KIM, Hyun Min CHO, Hyung Rae CHA
  • Publication number: 20220256187
    Abstract: The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 11, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ha Hyun LEE, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI
  • Patent number: 11412225
    Abstract: Disclosed herein is a context-adaptive entropy model for end-to-end optimized image compression. The entropy model exploits two types of contexts. The two types of contexts are a bit-consuming context and a bit-free context, respectively, and these contexts are classified depending on the corresponding context requires the allocation of additional bits. Based on these contexts, the entropy model may more accurately estimate the distribution of each latent representation using a more generalized form of entropy models, thus improving compression performance.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 9, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Joo-Young Lee, Seung-Hyun Cho, Seung-Kwon Beack, Hyunsuk Ko, Youn-Hee Kim, Jong-Ho Kim, Jin-Wuk Seok, Woong Lim, Se-Yoon Jeong, Hui-Yong Kim, Jin-Soo Choi
  • Patent number: 11409676
    Abstract: Provided is a SoC, a memory device, an electronic device and a method for storing data in an electronic device. The electronic device comprises a host configured to output data, and a memory device including a memory storage configured to receive the data and to store the data. The host is configured to generate data bus inversion (DBI) information on the data to be provided to the memory device in accordance with a data parallelizing system, the data parallelizing system being inside the memory device, and to provide the DBI information to the memory device. The memory device is configured to provide the data to the memory storage, the data output from the host, the data encoded in accordance with the DBI information, the providing the data being in accordance with the data parallelizing system.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: August 9, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji Hyun Choi, Hyun-Joong Kim, Joon Sik Sohn, Woong-Jae Song, Soo-Woong Ahn, Seung-Hyun Cho
  • Publication number: 20220246712
    Abstract: A display device may include a display panel including a display area, a non-display area which may be disposed on a periphery of the display area, and a pad area which may be disposed on one side of the non-display area. The display panel may include data lines disposed in the display area of the display panel along a second direction which intersects a first direction, and connection lines disposed in the display area of the display panel along the first direction. A first data line among the data lines may be connected to a first connection line among the connection lines.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 4, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung Hwan CHO, Jong Hyun CHOI, Ju Chan PARK, Seung Min SONG, Min Seong YI
  • Publication number: 20220242758
    Abstract: The present invention relates to a portable hydrogen water mist sprayer comprising a water container which has an open-top coupling part protruding from the top center, a central case, the bottom of which becomes coupled to the top of the water container, and a top cap that becomes coupled to the top of the central case, and wherein an enclosed installation frame placed in the bottom of the central case and the bottom of the central case, which becomes coupled and fixed to the bottom of the central case, are coupled to the open-top coupling part of the water container for airtightness, and an airtightness frame that has a discharge guide groove and a discharge guide hole to selectively release the gas from hydrogen water production inside the water container is applied so that, in case the internal pressure of the water container exceeds a certain level, the gas from inside the water container can flow through the enclosed installation frame and airtightness frame and be discharged outside via the discharge g
    Type: Application
    Filed: October 4, 2019
    Publication date: August 4, 2022
    Inventor: SEUNG HYUN CHO
  • Publication number: 20220247439
    Abstract: Disclosed is a method and apparatus for phase error compensation having tolerance to a cyclic slip. The method includes determining first phase error candidates based on symbol phases of a first block of a received signal, determining an initial estimation error according to the first phase error candidates, determining second phase error candidates based on symbol phases of a second block of the received signal, determining a final estimation error according to the initial estimation error and the second phase error candidates, and compensating for a phase of the received signal according to the final estimation error.
    Type: Application
    Filed: October 29, 2021
    Publication date: August 4, 2022
    Inventors: Sang Rok MOON, Minkyu SUNG, Eon-sang KIM, Won Kyoung LEE, Seung-Hyun CHO
  • Publication number: 20220232228
    Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 21, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong San JUN, Ha Hyun LEE, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho LEE, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI
  • Publication number: 20220231258
    Abstract: A display device includes a first display area, a second display area and a non-display area between the first display area and the second display area and extending in a first direction, at least a portion of the non-display area having a bending area connecting the first display area to the second display area, the display device comprising: light-emitting elements on a base substrate in the first display area and in the second display area; a first encapsulation layer covering light-emitting elements in the first display area; a second encapsulation layer covering light-emitting elements in the second display area; a signal wiring crossing the non-display area and extending in a second direction; and an upper compensation layer in the non-display area and filling a gap between the first encapsulation layer and the second encapsulation layer.
    Type: Application
    Filed: November 18, 2019
    Publication date: July 21, 2022
    Inventors: Seung-Hwan CHO, Jong-Hyun CHOI, Seung-Lyong BOK, Jung-Kyu LEE, Young-Cheol JEONG
  • Publication number: 20220223667
    Abstract: A display device includes: a substrate comprising a display region including main pixels, and a sensor region including auxiliary pixels and transmission areas; first anodes arranged so as to correspond to the main pixels; first pixel defining layers for defining openings which partially expose the first anodes; spacers provided on the first pixel defining layers and protruding in the thickness direction; second anodes arranged so as to correspond to the auxiliary pixels; and second pixel defining layers for defining openings which partially expose the second anodes. The spacers and the second pixel defining layers are simultaneously formed of the same material.
    Type: Application
    Filed: November 27, 2019
    Publication date: July 14, 2022
    Inventors: Jong Hyun CHOI, Seung Hwan CHO, Tae Woo KIM
  • Patent number: 11386851
    Abstract: A display device includes a display portion having a substantially rectangular area with rounded edges in which a plurality of data lines are arranged. The display device includes a first area corresponding to a rounded edge part and a second area corresponding to a straight edge part adjacent to the first area. A data driving circuit includes a plurality of output channels configured to output data voltages. Odd-numbered output channels output data voltages according to a sequential arrangement of data lines in the second area. Even-numbered output channels output data voltages according to a reverse sequential arrangement of data lines in the first area.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gyung Soon Park, Seung-Hwan Cho, Jong Hyun Choi
  • Publication number: 20220208898
    Abstract: A display device is provided. The display device comprises a display panel having a display region and a non-display region, wherein the display panel is bent along a first bending line extending in a first direction and a second bending line extending in a second direction crossing the first direction, an outer profile of the non-display region forms a corner portion of the display panel, and the corner portion is symmetrical with respect to an extension line that bisects an angle formed by the first bending line and the second bending line.
    Type: Application
    Filed: December 27, 2019
    Publication date: June 30, 2022
    Inventors: Seung Hwan CHO, Young Cheol JEONG, Jong Hyun CHOI, Gyung Soon PARK
  • Patent number: 11368681
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 21, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Ho Lee, Sung Chang Lim, Jung Won Kang, Hyun Suk Ko, Dong San Jun, Ha Hyun Lee, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi