Issued Patents 2005
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6963548 | Coherent synchronization of code division multiple access signals | Donald C. D. Chang, Kar W. Yung, David C. H. Cheng, Frank A. Hagen, John I. Novak, III | 2005-11-08 |
| 6952580 | Multiple link internet protocol mobile communications system and method therefor | Donald C. D. Chang, Wah L. Lim | 2005-10-04 |
| 6941107 | Stratospheric platform based surface vehicle tracking and mobile data network | Donald C. D. Chang, Wah L. Lim | 2005-09-06 |
| 6914557 | Micro cell architecture for mobile user tracking communication system | Donald C. D. Chang, Ying Feria, Weizheng Wang, Alan Cha, Frank A. Hagen +1 more | 2005-07-05 |
| 6891813 | Dynamic cell CDMA code assignment system and method | Ying Feria, Donald C. D. Chang | 2005-05-10 |