Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11294071 | Apparatus for determining precise location and method for determining precise location in woodlands | Sung Hyuck Im, Eun Sung Lee | 2022-04-05 |
| 11194012 | Radio source position estimation system | Sung Hyuck Im, Se Bum Chun, Deok Won Lim, Eun Seong Son, Koon Tack Kim | 2021-12-07 |
| 11088721 | Device for operating navigation satellite on basis of code division transmission array antenna and method for operating navigation satellite | Sung Hyuck Im, Se Bum Chun | 2021-08-10 |
| 10649091 | Method and system for time to first fix (TTFF) reduction of GPS receivers using satellite based augmentation system (SBAS) signal | Jae-Ik Park, Eun Sung Lee, Gi Wook Nam | 2020-05-12 |
| 10295674 | System and method for determining protection level | Young Sun YUN, Eun Sung Lee, Gi Wook Nam | 2019-05-21 |
| 9221558 | Apparatus and method for calculating satellite navigation visibility | Woon Ki Hong, Eun Sung Lee, Kwang-Sik Choi, Gi Wook Nam | 2015-12-29 |
| 8587478 | Localization method of multiple jammers based on TDOA method | Hee-Won Kang, Deok Won Lim | 2013-11-19 |
| 8437952 | Navigation system and method of recognizing traffic lane using the same | Woo Yong Kang, Eun Sung Lee | 2013-05-07 |