Patents by Inventor Cheol Mun

Cheol Mun 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: 20250098411
    Abstract: Provided is a method for ensuring vivid colors and increasing display reliability and lifespan by implementing a colored pattern with high optical density on an electrode substrate, where the method uses a pigment dispersion in which a pigment having a size of 100 nm or less is used in order to increase the optical density and reduce roughness after completing the post-heat treatment process by including a colorant according to the present disclosure, and the method can minimize the reduction in the lifespan due to moisture in the panel state by minimizing the moisture content after completing the post-heat treatment process.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 20, 2025
    Applicant: DUK SAN NEOLUX CO., LTD.
    Inventors: Jun BAE, Jun Ki KIM, Kyung Soo KIM, Changmin LEE, Yeon Soo LEE, Jin Hyun KIM, Hanwook SEO, Ju Cheol KWON, Seo Jeong JEON, Hak Young LEE, Soung Yun MUN
  • Publication number: 20250086422
    Abstract: A system and method for baggage screening using biometric information and identification information are proposed. In the system and the method of operating the same, the system includes a security screening device for detecting a tray to which identification information is attached and recognizing the tray, at least one or more terminals for guiding a user and obtaining biometric information of the user, and a server for matching the biometric information with the identification information of the tray and performing authorization of the biometric information and the identification information of the tray.
    Type: Application
    Filed: November 1, 2023
    Publication date: March 13, 2025
    Applicant: CUBOX CO, LTD.
    Inventors: Un Sung NAM, Ki Cheol CHUN, Hyun Min MUN, Hyeok Jin KWON
  • Publication number: 20240177608
    Abstract: The present disclosure relates to a method and apparatus for sharing driving intent between autonomous and manually driven vehicles. The method of sharing driving intent between autonomous and manually driven vehicles according to an embodiment of the present disclosure includes: (a) acquiring vehicle control information of a vehicle by a driver and driver behavior information of the driver, and creating a global path of the vehicle on the basis of input by the driver; (b) creating driving intent information of the driver about the vehicle on the basis of the global path, the vehicle control information, and the driver behavior information; (c) creating a local path of the vehicle on the basis of the driving intent information and driving intent information about a surrounding vehicle received from the surrounding vehicle; and (d) outputting the local path of the vehicle.
    Type: Application
    Filed: December 21, 2022
    Publication date: May 30, 2024
    Applicant: Industry-Academic Cooperation Foundation, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION
    Inventor: Cheol MUN
  • Publication number: 20240169588
    Abstract: The present invention relates to a method and an apparatus for detecting and correcting positioning errors of sensed objects in real time in infrastructure sensors. A method for detecting and correcting positioning errors of sensed objects in real time in infrastructure sensors may include: (a) acquiring an image from an infrastructure sensor; (b) determining a first pixel corresponding to a corner of each object included in the image, and a second pixel which does not correspond to the corner of the object; (c) generating a binary matrix corresponding to the first pixel and the second pixel; and (d) calibrating an absolute coordinate of the image according to a similarity based on the binary matrix.
    Type: Application
    Filed: November 21, 2023
    Publication date: May 23, 2024
    Applicant: KOREA NATIONAL UNIVERSITY OF TRANSPORTATION Industry-Academic Cooperation Foundation
    Inventor: Cheol MUN
  • Publication number: 20240140474
    Abstract: The present disclosure relates a method and apparatus for determining a path of an autonomous driving vehicle considering a communication network load. The method may include: (a) a step of transmitting global path information of all paths from a start point to a destination of a vehicle and vehicle identification (ID) information to a control server; (b) a step of receiving arrival time estimation information of the vehicle at at least one node on the all paths and wireless resource use rate information of at least one vehicle including the vehicle at each of the at least one node from the control server; (c) a step of determining a final movement path of the vehicle of the all paths on the basis of the arrival time estimation information and the wireless resource use rate; and (c) a step of performing autonomous driving along the determined final movement path.
    Type: Application
    Filed: November 24, 2022
    Publication date: May 2, 2024
    Applicant: Industry-Academic Cooperation Foundation, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION
    Inventor: Cheol MUN
  • Publication number: 20230196919
    Abstract: The present disclosure relates to an apparatus and a method for processing road situation data. A road situation data processing method according to an exemplary embodiment of the present disclosure is a road situation data processing method which is performed by a processor of an apparatus for processing road situation data including: collecting sensing data on objects on a road from a plurality of sensors provided on the road; modeling a relationship between the objects on a graph based on sensing data on the objects; constructing a grid-based spatial index with respect to the graph modeling result; removing redundant sensing data among sensing data on the objects included in the grid-based spatial index; extracting an object corresponding to a response to a query by performing a predetermined query on the objects from which the redundant sensing data is removed; and outputting context awareness data to the object corresponding to the response to the query.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 22, 2023
    Inventors: Seok Il SONG, Cheol MUN
  • Patent number: 11218212
    Abstract: Provided are a method and apparatus for performing wireless communication through channel state prediction using a local dynamic map. The method may include (a) receiving probe node data (PND) of a base station node and a mobile node, (b) generating local dynamic map (LDM) information including communication network information between the base station node and the mobile node using the probe node data, and (c) transmitting the LDM information to the base station node and the mobile node, wherein the LDM information may be used to select a transmission beam of the base station node and a reception beam of the mobile node corresponding to the transmission beam or a reception beam of the base station node and a transmission beam of the mobile node corresponding to the reception beam.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: January 4, 2022
    Assignee: Industry-Academic Cooperation Foundation, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION
    Inventor: Cheol Mun
  • Patent number: 11190240
    Abstract: A method and an apparatus are provided for transmitting channel state information (CSI) by a terminal in a communication system. The method includes receiving a first signal from a first serving cell; receiving a second signal from a second serving cell; calculating first CSI for the first serving cell based on the first signal; calculating second CSI for the first serving cell based on the first signal; calculating first CSI for the second serving cell based on the second signal; calculating second CSI for the second serving cell based on the second signal; transmitting the first CSI and the second CSI for the first serving cell respectively; and transmitting the first CSI and the second CSI for the second serving cell respectively.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: November 30, 2021
    Inventors: In Ho Lee, Cheol Mun, Juho Lee, Jin Kyu Han, Jong Gwan Yook
  • Patent number: 10224992
    Abstract: The present invention proposes an apparatus and a method capable of forming M*N number of beams by a base station, which supports signal transmission/reception of the macro service area in heterogeneous networks in which a macro service area is formed with the M*N number of beams through a two-dimensional arrangement simultaneously considering the horizontal dimension and the vertical dimension and at least one small service is formed in the macro service area. To this end, at least one interference prediction beam formed to transmit signals interfering in transmission signals in at least one small service area from among the signals to be transmitted by the M*N number of beams is selected, and each of the M*N number of beams is formed in consideration of the inter-cell interference in at least one small service area due to the signals to be transmitted by at least one selected interference prediction beam.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: March 5, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea National University of Transportation Industry-Academic Cooperation Foundation
    Inventors: Cheol Mun, Youn-Sun Kim, Hyoung-Ju Ji, Hyo-Jin Lee
  • Patent number: 9923612
    Abstract: The present invention proposes a hybrid spatial multiplexing (SM) and a space division multiple access (SDMA) technique in a frequency division duplex (FDD) massive multiple-input multiple output (MIMO) system using a two-dimensional planar array antenna, which effectively transmits a channel state information reference signal (CSI-RS) for estimating a downlink two-dimensional space channel using only a limited amount of downlink radio resources, and optimally selects and performs the SM and SDMA techniques in a two-dimensional space channel. To this end, the present invention proposes a technique which defines space resource blocks (SRB) by grouping space elements (SE) having a high spatial correlation between downlink channels in the horizontal dimension and corresponding SEs thereof in the vertical dimension, and transmits CSI-RSs for estimating channels in vertical dimension SEs corresponding to one selected horizontal SE in each SRB every transmit time interval (TTI).
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 20, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea National University of Transportation Industry Academic Cooperation Foundation
    Inventors: Hyoungju Ji, Cheol Mun, Younsun Kim, Juho Lee, Hyojin Lee, Joonyoung Cho
  • Patent number: 9806800
    Abstract: An Ethernet-based optical transmission system, and particularly, an apparatus and method for controlling a remote optical Ethernet device. An optical Ethernet apparatus includes a system recovery processor configured to output a system reset signal or a system power ON/OFF control signal and a system recovery controller configured to detect a system recovery command that occurs when a predetermined signal pattern is repeated the designated number of times for a designated period of time, and to control the system recovery processor using the detected system recovery command.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 31, 2017
    Assignees: DASAN Networks, Inc., DASAN Network Solutions, Inc.
    Inventors: Sang Cheol Mun, Byeong Chan Lee
  • Publication number: 20170195042
    Abstract: An Ethernet-based optical transmission system, and particularly, an apparatus and method for controlling a remote optical Ethernet device. An optical Ethernet apparatus includes a system recovery processor configured to output a system reset signal or a system power ON/OFF control signal and a system recovery controller configured to detect a system recovery command that occurs when a predetermined signal pattern is repeated the designated number of times for a designated period of time, and to control the system recovery processor using the detected system recovery command.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 6, 2017
    Applicants: DASAN Networks, Inc, DASAN Network Solutions, Inc.
    Inventors: Sang Cheol Mun, Byeong Chan Lee
  • Patent number: 9635642
    Abstract: Methods and apparatus are provided for beamforming and information feedback are provided. Signals for beams to be transmitted through corresponding antenna ports, are generated. The beams are formed by precoding the signals with beamforming vectors. The beams are sorted into a number of resource reuse groups based on a resource that is to be shared. The beams are transmitted, using resources allocated per group, to a receiver. Feedback information is generated on at least one antenna port, based on the received beams. The feedback information is transmitted to the transmitter. A beam is selected having a greatest gain for a transmitter using the feedback information. A transmission resource is allocated for the selected beam.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 25, 2017
    Assignees: Samsung Electronics Co., Ltd, Industry-Academic Cooperation Foundation, Korean National University of Transportation
    Inventors: Hyojin Lee, Cheol Mun, Kiil Kim, Younsun Kim, Juho Lee, Joonyoung Cho
  • Publication number: 20160323233
    Abstract: Disclosed are a method and a system for providing a traffic information-based social network service, which provides traffic information between vehicles or between a vehicle and a user terminal through a social network service, wherein traffic information is shared between vehicles or between a vehicle and the mobile device of a person through a social network service.
    Type: Application
    Filed: December 22, 2014
    Publication date: November 3, 2016
    Applicant: Korea National University of Transportation Industry-Academic Cooperation Foundation
    Inventors: Seok Il SONG, Dong Gun LIM, Cheol MUN
  • Patent number: 9408086
    Abstract: A Channel State Information (CSI) feedback method and apparatus is provided for transmitting, at a base station, the CSIs for plural transmit antennas with a limited amount resource and receiving, at a mobile station, the CSIs efficiently in a massive Multiple Input Multiple Output (MIMO) system operating in the Frequency Division Duplex (FDD) mode.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 2, 2016
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Korean National University of Transportation
    Inventors: Kiil Kim, Cheol Mun, Younsun Kim, Juho Lee, Hyojin Lee, Joonyoung Cho
  • Publication number: 20160072568
    Abstract: The present invention proposes an apparatus and a method capable of forming M*N number of beams by a base station, which supports signal transmission/reception of the macro service area in heterogeneous networks in which a macro service area is formed with the M*N number of beams through a two-dimensional arrangement simultaneously considering the horizontal dimension and the vertical dimension and at least one small service is formed in the macro service area. To this end, at least one interference prediction beam formed to transmit signals interfering in transmission signals in at least one small service area from among the signals to be transmitted by the M*N number of beams is selected, and each of the M*N number of beams is formed in consideration of the inter-cell interference in at least one small service area due to the signals to be transmitted by at least one selected interference prediction beam.
    Type: Application
    Filed: April 17, 2014
    Publication date: March 10, 2016
    Inventors: Cheol Mun, Youn-Sun Kim, Hyoung-Ju Ji, Hyo-Jin Lee
  • Publication number: 20150373736
    Abstract: The present invention proposes a hybrid spatial multiplexing (SM) and a space division multiple access (SDMA) technique in a frequency division duplex (FDD) massive multiple-input multiple output (MIMO) system using a two-dimensional planar array antenna, which effectively transmits a channel state information reference signal (CSI-RS) for estimating a downlink two-dimensional space channel using only a limited amount of downlink radio resources, and optimally selects and performs the SM and SDMA techniques in a two-dimensional space channel. To this end, the present invention proposes a technique which defines space resource blocks (SRB) by grouping space elements (SE) having a high spatial correlation between downlink channels in the horizontal dimension and corresponding SEs thereof in the vertical dimension, and transmits CSI-RSs for estimating channels in vertical dimension SEs corresponding to one selected horizontal SE in each SRB every transmit time interval (TTI).
    Type: Application
    Filed: January 15, 2014
    Publication date: December 24, 2015
    Inventors: Hyoungju JI, Cheol MUN, Younsun KIM, Juho LEE, Hyojin LEE, Joonyoung CHO
  • Publication number: 20150349861
    Abstract: A method and an apparatus are provided for transmitting channel state information (CSI) by a terminal in a communication system. The method includes receiving a first signal from a first serving cell; receiving a second signal from a second serving cell; calculating first CSI for the first serving cell based on the first signal; calculating second CSI for the first serving cell based on the first signal; calculating first CSI for the second serving cell based on the second signal; calculating second CSI for the second serving cell based on the second signal; transmitting the first CSI and the second CSI for the first serving cell respectively; and transmitting the first CSI and the second CSI for the second serving cell respectively.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Inventors: In Ho LEE, Cheol Mun, Ju Ho Lee, Jin Kyu Han, Jong Gwan Yook
  • Patent number: 9106282
    Abstract: A method and an apparatus for sending and receiving channel state information in network Multiple-Input Multiple-Output (MIMO) wireless communication systems are provided. Hybrid feedback technology is provided to transfer complete Channel State Information (CSI) to a transmitter by efficiently combining limited amounts of long-term channel information and short-term channel information are In a down link MIMO network system.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: August 11, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: In Ho Lee, Cheol Mun, Jun Ho Lee, Jin Kyu Han, Jong Gwan Yook
  • Patent number: RE46951
    Abstract: An apparatus and method for transmitting/receiving data in a mobile communication system using multiple antennas are provided. A receiver estimates a fading channel of received data, selects a weight set relative to a maximum data transmission rate from at least one weight set with elements of a plurality of orthogonal weight vectors, and transmits feedback information including the selected weight set and channel-by-channel state information to a transmitter. The transmitter demultiplexes data to be transmitted on a basis of the feedback information into at least one sub-data stream, multiplies each sub-data stream by an associated weight, and transmits the data.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: July 10, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Kyu Han, Dae-Gyun Kim, Hwan-Joon Kwon, Dong-Hee Kim, Youn-Sun Kim, Yu-Chul Kim, Cheol Mun