Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6980783 | Apparatus and method of controlling low frequency load currents drawn from a DC source in a telecommunications system | Yan-Fei Liu, Kai Xu | 2005-12-27 |
| 6911746 | Signal and power transformer coupling arrangements | Yan-Fei Liu, David Alan Brown, Rajko Duvnjak | 2005-06-28 |
| 6850048 | Power supply controller | Yan-Fei Liu, Roger Colbeck, David Alan Brown, Hartley Fred Horwitz | 2005-02-01 |