Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597482 | Multiplexing/demultiplexing apparatus for wavelength division multiplexed system and wavelength division multiplexed passive optical subscriber networks using the same apparatus | Chang Hee Lee, Dae-Kwang Jung, Seung Kyun Shin | 2003-07-22 |
| 6548806 | Apparatus for monitoring frequency of WDM signals using pilot tone | Seung Kyun Shin, Keun Joo Park | 2003-04-15 |
| 6538784 | Multicast-capable optical cross-connect with layered modularity | Chang Hee Lee, Hyun Deok Kim | 2003-03-25 |
| 6532106 | All-optical gain controlled bidirectional add/drop optical amplifier | Chul Han Kim | 2003-03-11 |