Patents by Inventor Dong Hyuk Yi

Dong Hyuk Yi 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).

  • Real time self differential global positioning system and method for a moving station in a local area, and terminal global positioning system using the same
    Patent number: 6704652
    Abstract: A terminal Global Positioning System (TGPS) adopting a real-time self Differential Global Positioning System (DGPS) is developed for positioning a moving station in a local area. This TGPS enables not only to minimize the error ranges without any additional expensive transmitting-receiving equipment, but also to calculate an accurate correcting value through a TGPS server.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: March 9, 2004
    Assignee: Total Soft Bank Ltd.
    Inventor: Dong Hyuk Yi
  • Real time self differential global positioning system and method for a moving station in a local area, and terminal global positioning system using the same
    Publication number: 20030083817
    Abstract: A real-time self Differential Global Positioning System (DGPS) is developed for positioning a moving station in a local area. This DGPS system enables not only to minimize the error ranges without any additional expansive transmitting-receiving equipment, but also to calculate an accurate correcting value through a DGPS receiver. A method of the real-time self DGPS system comprises the steps of: (1) receiving a GPS signal of moving station contained data of satellite time and pre-measured moving station position, (2) calculating a correcting value from the moving station, (3) positioning the accurate moving station according to the correcting value and the GPS signal of moving station.
    Type: Application
    Filed: April 25, 2002
    Publication date: May 1, 2003
    Inventor: Dong Hyuk Yi