Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6963548 | Coherent synchronization of code division multiple access signals | Donald C. D. Chang, David C. H. Cheng, Frank A. Hagen, Ming U. Chang, John I. Novak, III | 2005-11-08 |
| 6920309 | User positioning technique for multi-platform communication system | Frank A. Hagen, Donald C. D. Chang | 2005-07-19 |
| 6914557 | Micro cell architecture for mobile user tracking communication system | Donald C. D. Chang, Ying Feria, Weizheng Wang, Alan Cha, Ming U. Chang +1 more | 2005-07-05 |
| 6909875 | Multi-platform wireless communication system for a variety of different user types | Frank A. Hagen, Donald C. D. Chang | 2005-06-21 |
| 6888499 | Signal processing circuit for communicating with a modular mobile terminal and method therefor | Donald C. D. Chang, Urban A. Von Der Embse, John I. Novak, III | 2005-05-03 |
| 6868269 | Integrating coverage areas of multiple transponder platforms | Frank A. Hagen, Ying Feria, Weizheng Wang, Donald C. D. Chang | 2005-03-15 |