Patents by Inventor Cheol Soon LIM

Cheol Soon LIM 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).

  • APPARATUS FOR GENERATING VIRTUAL OBSERVATION OF USER CARRIER FOR PRECISE GLOBAL NAVIGATION SATELLITE SYSTEM USER POSITIONING BASED ON HOMOGENEOUS NETWORK REAL TIME KINEMATIC CORRECTIONS AND METHOD THEREOF
    Publication number: 20240094413
    Abstract: Disclosed are an apparatus for generating a user's virtual observation and a method thereof.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 21, 2024
    Applicant: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Byung Woon PARK, Cheol Soon LIM, Sung Kyung HONG
  • Global positioning system for compensating for error of relative position between vehicles
    Patent number: 11867803
    Abstract: The present disclosure relates to a global positioning system for compensating for relative positioning errors between vehicles. A follower vehicle of the global positioning system includes a correction message receiver configured to receive correction message including velocity information about a leader vehicle and GNSS raw measurements of the leader vehicle from the leader vehicle, a relative positioning result calculator configured to calculate a relative positioning result between the leader vehicle and the follower vehicle based on the GNSS measurements of the leader vehicle, and a relative positioning result corrector configured to calculate a corrected relative positioning result through an operation based on the calculated relative positioning result and the velocity information about the leader vehicle.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: January 9, 2024
    Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
    Inventors: Byung Woon Park, Eun Yeong Lee, Cheol Soon Lim, Hyo Jung Yoon
  • GLOBAL POSITIONING SYSTEM FOR COMPENSATING FOR ERROR OF RELATIVE POSITION BETWEEN VEHICLES
    Publication number: 20220171053
    Abstract: The present disclosure relates to a global positioning system for compensating for relative positioning errors between vehicles. A follower vehicle of the global positioning system includes a correction message receiver configured to receive correction message including velocity information about a leader vehicle and GNSS raw measurements of the leader vehicle from the leader vehicle, a relative positioning result calculator configured to calculate a relative positioning result between the leader vehicle and the follower vehicle based on the GNSS measurements of the leader vehicle, and a relative positioning result corrector configured to calculate a corrected relative positioning result through an operation based on the calculated relative positioning result and the velocity information about the leader vehicle.
    Type: Application
    Filed: November 22, 2021
    Publication date: June 2, 2022
    Applicant: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
    Inventors: Byung Woon PARK, Eun Yeong LEE, Cheol Soon LIM, Hyo Jung YOON
  • Method and apparatus for multipath mitigation in GNSS
    Patent number: 11125886
    Abstract: The present invention provides a method of performing a position measurement on the basis of a signal from a global navigation satellite system (GNSS). The method includes: receiving initial position information; estimating an initial value of a multipath error through a measurement of the GNSS signal on the basis of the received initial position information; estimating a multipath error from the initial value of the multipath error on the basis of a change in the measurement; removing the estimated multipath error from the measurement of the GNSS signal; and performing the position measurement on the basis of the GNSS measurement from which the multipath error is removed.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 21, 2021
    Assignees: Electronics and Telecommunications Research Institute, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Yoo La Hwang, Jae Young Ahn, Byoung Sun Lee, Ji Hun Cha, Byung Woon Park, Yong Jun Lee, Cheol Soon Lim
  • METHOD AND APPARATUS FOR MULTIPATH MITIGATION IN GNSS
    Publication number: 20200271792
    Abstract: The present invention provides a method of performing a position measurement on the basis of a signal from a global navigation satellite system (GNSS). The method includes: receiving initial position information; estimating an initial value of a multipath error through a measurement of the GNSS signal on the basis of the received initial position information; estimating a multipath error from the initial value of the multipath error on the basis of a change in the measurement; removing the estimated multipath error from the measurement of the GNSS signal; and performing the position measurement on the basis of the GNSS measurement from which the multipath error is removed.
    Type: Application
    Filed: December 9, 2019
    Publication date: August 27, 2020
    Applicants: Electronics and Telecommunications Research Institute, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Yoo La HWANG, Jae Young AHN, Byoung Sun LEE, Ji Hun CHA, Byung Woon PARK, Yong Jun LEE, Cheol Soon LIM