Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9838218 | Method for providing overlay network interworking with underlay network and system performing same | — | 2017-12-05 |
| 8442400 | Wavelength division multiplexed-passive optical network capable of high-speed transmission of an optical signal by using modulation format having high spectral efficiency | Chang Hee Lee, Sil-Gu Mun, Jung-Hyung Moon | 2013-05-14 |
| 8290370 | Wavelength division multiplexing passive optical network for providing both of broadcasting service and communication service and central office used thereof | Chang Hee Lee, Jung-Hyung Moon | 2012-10-16 |
| 8116628 | Wavelength-division multiplexed passive optical network for embodying wavelength-independent operation of wavelength-locked Fabry-Perot laser diodes by injecting a low noise broadband light source | Chang Hee Lee | 2012-02-14 |
| 8078061 | Wavelength division multiplexed-passive optical network capable of high-speed transmission of an optical signal by using modulation format having high spectral efficiency | Chang Hee Lee, Sil-Gu Mun, Jung-Hyung Moon | 2011-12-13 |
| 8073334 | Optical modulation method and system in wavelength locked FP-LD by injecting broadband light source using mutually injected FP-LD | Chang Hee Lee | 2011-12-06 |
| 7936994 | Broadband light source using fabry perot laser diodes | Chang Hee Lee, Jin-Serk Baik, 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, Jin-Serk Baik, Keun-Youl Park, Seung Hyun Jang, Hyun-Sik Min | 2011-03-22 |
| 7773838 | Method and network architecture for upgrading legacy passive optical network to wavelength division multiplexing passive optical network based next-generation passive optical network | Chang Hee Lee, Sil-Gu Mun, Jung-Hyung Moon, Hoon-Keun Lee | 2010-08-10 |