Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671045 | Apparatus and method for measuring optical signal-to-noise ratio | Chang Hee Lee, Kwang-Uk Chu | 2003-12-30 |
| 6559984 | Apparatus for monitoring optical path based on the identification of optical cross-connect input ports | Chang Hee Lee, Chu Kwang Uk | 2003-05-06 |