Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7844189 | Phase controllable optical delay interferometer, optical differential phase shift keying demodulator using the same, and demodulating method therefor | Chang-Soo Park, Tae-Young Kim, Masanori Hanawa, Sun Jong KIM, Won-Taek Han | 2010-11-30 |
| 7680416 | WDM-PON having optical source of self-injection locked fabry-perot laser diode | Chang-Soo Park | 2010-03-16 |