Patents by Inventor Jinhyung OH

Jinhyung OH 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: 11994881
    Abstract: An identification method and an unmanned aerial vehicle (UAV) detection apparatus are provided. The identification method, as a method for preventing a collision that may occur in a process of detecting and identifying a plurality of UAVs flying in the air, detects a plurality of UAVs in the air and determines a legitimacy of flight of each of the plurality of UAVs using an identification information request message.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: May 28, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jinhyung Oh, Kyu-Min Kang, Jae Cheol Park, Dong Woo Lim, Su Na Choi, Sunghyun Hwang
  • Patent number: 11881634
    Abstract: An antenna apparatus for drone identification and an operating method thereof are provided. The antenna apparatus includes: a plurality of horizontal directional antennas; a vertical directional antenna positioned at a center of an area surrounded by the plurality of horizontal directional antennas; a beamforming unit controlling beamforming of the vertical directional antenna and the plurality of horizontal antennas to transmit and receive signals in all directions; and a power supply unit for suppling power.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: January 23, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyu-Min Kang, Jae Cheol Park, Jinhyung Oh, Dong Woo Lim, Su Na Choi, Sunghyun Hwang
  • Publication number: 20220359983
    Abstract: An antenna apparatus for drone identification and an operating method thereof are provided. The antenna apparatus includes: a plurality of horizontal directional antennas; a vertical directional antenna positioned at a center of an area surrounded by the plurality of horizontal directional antennas; a beamforming unit controlling beamforming of the vertical directional antenna and the plurality of horizontal antennas to transmit and receive signals in all directions; and a power supply unit for suppling power.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 10, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kyu-Min KANG, Jae Cheol PARK, Jinhyung OH, Dong Woo LIM, Su Na CHOI, Sunghyun HWANG
  • Publication number: 20210341950
    Abstract: An identification method and an unmanned aerial vehicle (UAV) detection apparatus are provided. The identification method, as a method for preventing a collision that may occur in a process of detecting and identifying a plurality of UAVs flying in the air, detects a plurality of UAVs in the air and determines a legitimacy of flight of each of the plurality of UAVs using an identification information request message.
    Type: Application
    Filed: April 28, 2021
    Publication date: November 4, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jinhyung OH, kyu-Min KANG, Jae Cheol PARK, DONG WOO LIM, Su Na CHOI, Sunghyun HWANG
  • Patent number: 9385834
    Abstract: An interference alignment method using multiple antennas in a multi-cell overlapped environment, includes: when at least one transmission and reception ends having at least one or more antennas communicate with each other, establishing at least one or more channels from the transmission end to the reception end. Further, the interference alignment method includes designing a processing filter for a transmission signal transmitted from the transmission end to the reception ends; and designing a processing filter for a reception signal that is received by the reception end.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: July 5, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jinhyung Oh, Gwangzeen Ko, Igor Kim, Myung Sun Song
  • Patent number: 9270501
    Abstract: Disclosed is a method for removing signal interference in a MIMO-based interference removing apparatus including transmitting a reference signal to at least one receiver; if channel information is estimated by the receiver, receiving the estimated channel information from the receiver as a feedback signal; and producing transmission pre-coding matrix, beam forming matrix, and weighted matrix using the received channel information. Further, the method includes transmitting information containing the transmission pre-coding matrix, the beam forming matrix, and the weighted matrix by including them in a pilot signal to the receiver, and the MIMO-based interference removing apparatus comprises at least one transmitter.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 23, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jinhyung Oh, Gwangzeen Ko, Igor Kim, Myung Sun Song, Hyun Ho Lee, Myeong Jin Kim, Young Chai Ko
  • Publication number: 20150341090
    Abstract: A method comprising: determining, by a transmitter, a fixed number of effective IAI channels; estimating, by a receiver, channel information H through information provided from the transmitter; sharing, by a receiver, the channel information among a plurality of receivers that are belonging to a same BSS (Basic Service Set); calculating effective IAI channel information q and decoding vector u using the channel information; feeding back the calculated effective IAI channel information q and decoding vector u to the transmitter; and calculating, by the transmitter, a transmitting precoding vector, after sharing the fed-back effective IAI channel information q and decoding vector u, and the channel information H among a plurality of other transmitters.
    Type: Application
    Filed: January 16, 2015
    Publication date: November 26, 2015
    Inventors: Jinhyung OH, Hyun Ho LEE, Young Chai KO, Myeong Jin KIM, Gwangzeen KO, Igor KIM, Myung Sun SONG
  • Publication number: 20150188733
    Abstract: Disclosed is a method for removing signal interference in a MIMO-based interference removing apparatus including transmitting a reference signal to at least one receiver; if channel information is estimated by the receiver, receiving the estimated channel information from the receiver as a feedback signal; and producing transmission pre-coding matrix, beam forming matrix, and weighted matrix using the received channel information. Further, the method includes transmitting information containing the transmission pre-coding matrix, the beam forming matrix, and the weighted matrix by including them in a pilot signal to the receiver, and the MIMO-based interference removing apparatus comprises at least one transmitter.
    Type: Application
    Filed: May 8, 2014
    Publication date: July 2, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jinhyung OH, Gwangzeen KO, Igor KIM, Myung Sun SONG, Hyun Ho LEE, Myeong Jin KIM, Young Chai KO
  • Publication number: 20140349581
    Abstract: A method for a partial interference alignment in a multi-antenna communication system includes, checking the number of access points (APs) operating at the same channel or adjacent channel; and calculating LIPs (Leakage Interference Power) that the respective APs have an effect on each base-station (STA). Further, the method includes choosing the upper three AP-STA pairs having the highest LIP in order as a candidate group for interference alignment; and performing a partial interference alignment on the candidate group for interference alignment.
    Type: Application
    Filed: July 19, 2013
    Publication date: November 27, 2014
    Inventors: Jinhyung OH, Gwangzeen KO, Igor KIM, Myung Sun SONG
  • Publication number: 20140286244
    Abstract: An apparatus for controlling a near field wireless network, includes a wireless network controller included in a management plane of a wireless access point and configured to observe wireless physical layer/media access controller layer (PHY/MAC) protocols and perform a management procedure on wired MAC/PHY protocols within the wireless access point. Further, the apparatus includes a wireless network central management unit included in a management plane of a switch and configured to perform a management procedure on the wired MAC/PHY protocols within the switch.
    Type: Application
    Filed: July 17, 2013
    Publication date: September 25, 2014
    Inventors: Gwangzeen KO, Jinhyung OH, Igor KIM, Myung Sun SONG
  • Publication number: 20140205034
    Abstract: An interference alignment method using multiple antennas in a multi-cell overlapped environment, includes: when at least one transmission and reception ends having at least one or more antennas communicate with each other, establishing at least one or more channels from the transmission end to the reception end. Further, the interference alignment method includes designing a processing filter for a transmission signal transmitted from the transmission end to the reception ends; and designing a processing filter for a reception signal that is received by the reception end.
    Type: Application
    Filed: January 16, 2014
    Publication date: July 24, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jinhyung Oh, Gwangzeen Ko, Igor Kim, Myung Sun Song
  • Publication number: 20140146736
    Abstract: An apparatus for grouping a plurality of stations in a multi-transmission environment includes an SNR (Signal to Noise Ratio) measuring unit configured to measure SNR values of the stations existing in the multi-transmission environment. Further, the apparatus includes a grouping unit configured to group the stations into several subgroups depending on the SNR values, wherein a leader is defined in each subgroup. Furthermore, the apparatus includes a control unit configured to determine an MCS (Modulation and Coding Scheme) intended for each subgroup and form different A-MPDU (Aggregated MAC Protocol Data Unit) for each subgroup separately to send to each subgroup in a multicast transmission.
    Type: Application
    Filed: August 27, 2013
    Publication date: May 29, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Igor KIM, Jinhyung OH, Gwangzeen KO, Myung Sun SONG