Patents by Inventor Se Bum CHUN

Se Bum CHUN 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).

  • Radio source position estimation system
    Patent number: 11194012
    Abstract: Provided is a radio source position estimation system including a plurality of radio transmission devices spaced a predetermined distance apart from one another and configured to transmit radio frequency (RF) signals received from an arbitrary radio source and a central radio reception device configured to estimate a position of the radio source using the RF signals received from at least three radio transmission devices.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: December 7, 2021
    Assignee: Korea Aerospace Research Institute
    Inventors: Sung Hyuck Im, Moon Beom Heo, Se Bum Chun, Deok Won Lim, Eun Seong Son, Koon Tack Kim
  • Device for operating navigation satellite on basis of code division transmission array antenna and method for operating navigation satellite
    Patent number: 11088721
    Abstract: The present invention relates to a device for operating a navigation satellite on the basis of a code division transmission array antenna and a method for operating a navigation satellite. The device for operating a navigation satellite on the basis of a code division transmission array antenna, according to the present invention, comprises: a code generation unit for allocating a spread spectrum code to each of a plurality of antennas; a determination unit for determining, as transmission-end antennas, at least some of the plurality of antennas, to which different spread spectrum codes are allocated; and a processing unit, which arranges each of the transmission-end antennas at predetermined coordinates such that a plurality of signals transmitted from the transmission-end antennas are transmitted to reception-end antennas through multiple paths.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 10, 2021
    Assignee: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Sung Hyuck Im, Se Bum Chun, Moon Beom Heo
  • DEVICE FOR OPERATING NAVIGATION SATELLITE ON BASIS OF CODE DIVISION TRANSMISSION ARRAY ANTENNA AND METHOD FOR OPERATING NAVIGATION SATELLITE
    Publication number: 20210075466
    Abstract: The present invention relates to a device for operating a navigation satellite on the basis of a code division transmission array antenna and a method for operating a navigation satellite. The device for operating a navigation satellite on the basis of a code division transmission array antenna, according to the present invention, comprises: a code generation unit for allocating a spread spectrum code to each of a plurality of antennas; a determination unit for determining, as transmission-end antennas, at least some of the plurality of antennas, to which different spread spectrum codes are allocated; and a processing unit, which arranges each of the transmission-end antennas at predetermined coordinates such that a plurality of signals transmitted from the transmission-end antennas are transmitted to reception-end antennas through multiple paths.
    Type: Application
    Filed: August 13, 2018
    Publication date: March 11, 2021
    Inventors: Sung Hyuck IM, Se Bum CHUN, Moon Beom HEO
  • RADIO SOURCE POSITION ESTIMATION SYSTEM
    Publication number: 20190011525
    Abstract: Provided is a radio source position estimation system including a plurality of radio transmission devices spaced a predetermined distance apart from one another and configured to transmit radio frequency (RF) signals received from an arbitrary radio source and a central radio reception device configured to estimate a position of the radio source using the RF signals received from at least three radio transmission devices.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 10, 2019
    Inventors: Sung Hyuck IM, Moon Beom HEO, Se Bum CHUN, Deok Wo LIM, Eun Seong SON, Koon Tack KIM