Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675221 | Apparatus and method for transmitting foward/receiving dimming control signal and up/down encoding manner using a common user power line | Hong Ki YOO, Ki Ju Im, Sang Kyeong Lee, Eun Tai Jung, Kyung Ho Lee +2 more | 1997-10-07 |