Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6847810 | Unified antenna diversity switching system for TDMA-based telephones | Qun Shen | 2005-01-25 |
| 6587444 | Fixed frequency-time division duplex in radio communications systems | Qun Shen | 2003-07-01 |
| 6556830 | Coverage area sectorization in time division multiple access/frequency-time division duplex communications systems | — | 2003-04-29 |
| 6483884 | Antenna diversity switching system for TDMA-based telephones | Qun Shen | 2002-11-19 |
| 5952963 | Advanced antenna diversity mechanism | Qun Shen | 1999-09-14 |