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Byoung-Sun
Byoung-Sun Lee, Daejeon-City KR
| Patent application number | Description | Published |
|---|---|---|
| 20100090889 | PRECISE ORBIT DETERMINATION SYSTEM AND METHOD USING GPS DATA AND GALILEO DATA - Provided are a method and system for determining a precise orbit of a LEO satellite. The method includes: estimating a precise ephemeris of a global positioning system (GPS) satellite by fitting an orbit perturbation-based GPS dynamics model to observation data of the GPS satellite received from a GPS observatory and estimating a precise ephemeris of a Galileo satellite by fitting an orbit perturbation-based Galileo dynamics model to observation data of the Galileo satellite received from a Galileo observatory; determining an initial orbit value of a LEO satellite by fitting an orbit perturbation-based LEO satellite's basic dynamics model to navigation data received from the LEO satellite; and determining the precise orbit of the LEO satellite by calculating a difference between observation values, which are calculated based on a GPS and Galileo data received from the LEO satellite, the GPS observatory and the Galileo observatory, and calculated values, which are calculated based on an orbit perturbation-based LEO satellite's dynamics model that was calculated using the initial orbit value of the LEO satellite and the precise ephemeris of the GPS and Galileo satellites. Since both the GPS and Galileo data are received and used to determine the precise orbit of a LEO satellite, more precise orbit determination can be achieved. | 04-15-2010 |
Byoung-Sun Lee, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090091493 | METHOD FOR CORRECTING IONOSPHERE ERROR, AND SYSTEM AND METHOD FOR DETERMINING PRECISION ORBIT USING THE SAME - Provided is a method of correcting an ionosphere error, a system of a precise orbit determination using the same and a method thereof. The method includes the steps of: a) determining a time of a highest elevation angle of a GPS satellite per one pass of each GPS satellite received at a LEO satellite or a receiver on a ground; b) determining a minimum total electron content found from an ionosphere model of the determined time per one pass of each GPS satellite; c) determining a total electron content directly calculated from the LEO satellite or a single frequency GPS data; d) determining an ionosphere error value of a single frequency GPS data by combining the minimum total electron content and the directly calculated total electron content; and e) correcting pseudorange data or carrier phase data based on the determined ionosphere error value. | 04-09-2009 |
| 20110143778 | SYSTEM AND METHOD FOR ESTIMATING POSITION OF LOST MOBILE TERMINAL, AND MOBILE TERMINAL - Provided are a system and method for estimating position of lost mobile terminal and a mobile terminal. The system for estimating position of lost mobile terminal includes a plurality of base stations and a computing apparatus. Each of the base stations transmits an activation signal, receives a terminal ID from the mobile terminal in response to the activation signal, and transmits a reception time of the terminal ID and the terminal ID. The computing apparatus estimates a position of the mobile terminal corresponding to the terminal ID on the basis of the reception time and a position of each of the base stations. | 06-16-2011 |
Byoung-Sun Yoo, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20080284141 | Bracket for securing side airbag for automotive vehicle - A bracket for securing a side airbag for an automotive vehicle is provided. The bracket includes a mounting plate formed of a synthetic resin material, and including a main body and a coupling part projecting from an upper surface of the main body and having a hole, and a bracket clip including two support plates in contact with front and rear surfaces of the coupling part and having through-holes in communication with the hole, and a bent part connecting the two support plates at each one side. | 11-20-2008 |
| 20090072521 | Bracket for securing side airbag for automotive vehicle - There is provided a bracket for securing a side airbag for an automotive vehicle. The bracket includes a bracket which connects a connection strap, connected to the side airbag, to a pillar of the vehicle, and wherein the bracket includes: an installation aperture to be secured to the pillar; and a fixing bracket aperture through which the connection strap connected to the side airbag passes, and wherein the fixing bracket aperture includes: a fixing bracket central aperture through which the connection strap passes; and extension apertures formed at both ends of the fixing bracket central aperture and each having a greater width than that of the fixing bracket central aperture. | 03-19-2009 |
| 20090079173 | Bracket for securing side airbag for automotive vehicle - There is provided a bracket for securing a side airbag for an automotive vehicle. The bracket includes a support plate, an installation plate positioned at upper part of the support plate and including an installation aperture, and fixing plates formed by being forwardly bent from the right and left edges, with respect to the installation plate, of the support plate. | 03-26-2009 |
| 20100025973 | AUTOMOBILE SIDE AIRBAG GUIDE PLATE - Provided is an automobile side airbag guide plate including support brackets disposed at both sides of a center pillar, fixed to an inner panel between a roof panel and a head liner, and supporting a lower part of an airbag module, wherein each of the support brackets includes a vertical part fixed to the inner panel between the roof panel and the head liner, and a horizontal support part extending from the vertical part to support the lower part of the airbag module fixed to the inner panel. | 02-04-2010 |