Patents by Inventor Byoung-Sun Lee

Byoung-Sun Lee 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).

  • System for determining precise orbit of satellite and method thereof
    Patent number: 6683563
    Abstract: In a system for determining a precise orbit of a satellite, a satellite control system includes a tracking, telemetry and command module for receiving telemetry data from the satellite, tracking the satellite, and performing link to the satellite; a satellite operations sub module for extracting L1 carrier phase data by processing the telemetry data, monitoring the satellite, generating telecommand data, and controlling the satellite; and a mission analysis and planning subsystem for determining the precise orbit of the satellite using the L1 carrier phase data collected by a satellite, L1/L2 carrier phase data of the reference ground stations of the GPS satellites collected by an IGS, and a path error caused by the ionosphere of data, and analyzing and planning a mission of the satellite.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: January 27, 2004
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jeong-Sook Lee, Byoung-Sun Lee, Jae-Hoon Kim, Seong-Pal Lee, Jae-Cheol Yoon, Kyu-Hong Choi, Kyoung-Min Roh, Eun-Seo Park, Bo-Yeon Moon
  • System for determining precise orbit of satellite and method thereof
    Publication number: 20030098810
    Abstract: In a system for determining a precise orbit of a satellite, a satellite control system includes a tracking, telemetry and command module for receiving telemetry data from the satellite, tracking the satellite, and performing link to the satellite; a satellite operations sub module for extracting L1 carrier phase data by processing the telemetry data, monitoring the satellite, generating telecommand data, and controlling the satellite; and a mission analysis and planning subsystem for determining the precise orbit of the satellite using the L1 carrier phase data collected by a satellite, L1/L2 carrier phase data of the reference ground stations of the GPS satellites collected by an IGS, and a path error caused by the ionosphere of data, and analyzing and planning a mission of the satellite.
    Type: Application
    Filed: July 15, 2002
    Publication date: May 29, 2003
    Inventors: Jeong-Sook Lee, Byoung-Sun Lee, Jae-Hoon Kim, Seong-Pal Lee, Jae-Cheol Yoon, Kyu-Hong Choi