Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8611396 | Frequency hopping modulation apparatus and method in communication system | Sung-Kweon Park, Byung-Jik Kim, Jeong-Rok Park | 2013-12-17 |
| 8374624 | Location measurement method based on predictive filter | Joon-Oo Kim, Yun-Je Oh, Joong-Soo Ma, Myoung-Hwan Seo, Myoung-In Ji +1 more | 2013-02-12 |
| 8330648 | Method and apparatus for measuring distance in a wireless environment | Jeong-Rok Park, Sung-Kweon Park, Do Young Ha, Byung-Jik Kim, Joon-Oo Kim | 2012-12-11 |
| 8049618 | Indoor location system having sensor and method for checking location using the same | Sung-Kweon Park, Won-Suk Yang, Yun-Je Oh, Joon-Oo Kim, Jeong-Rok Park +2 more | 2011-11-01 |
| 7936994 | Broadband light source using fabry perot laser diodes | Chang Hee Lee, Ki-Man Choi, Hyun-Sik Min, Keun-Youl Park | 2011-05-03 |
| 7912372 | Optical access network using wavelength-locked WDM optical source injected by incoherent light | Chang Hee Lee, Keun-Youl Park, Seung Hyun Jang, Ki-Man Choi, Hyun-Sik Min | 2011-03-22 |
| 7369771 | Optical network terminator and optical network connection method using it | Chang Hee Lee, Kwang Pyo Hong, Sung-Man Kim, Sang-Mook Lee, Sil-Gu Mun | 2008-05-06 |
| 6728026 | Dynamically tunable optical amplifier and fiber optic light source | Chang Hee Lee, Byoung Y. Kim, Seok-Hyun Yun, Hyo Sang Kim, Kun-Youl Park +1 more | 2004-04-27 |