Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829479 | Fixed wireless back haul for mobile communications using stratospheric platforms | Donald C. D. Chang, Ying Feria, Harold A. Rosen | 2004-12-07 |
| 6807397 | Method for identifying growth limits of handheld services for mobile satellite communications | Donald C. D. Chang, Kar W. Yung, David C. H. Cheng, Urban A. Von Der Embse, John I. Novak, III +1 more | 2004-10-19 |
| 6785553 | Position location of multiple transponding platforms and users using two-way ranging as a calibration reference for GPS | Donald C. D. Chang, Kar W. Yung, David C. H. Cheng, Frank A. Hagen | 2004-08-31 |
| 6763242 | Resource assignment system and method for determining the same | Ying Feria, Donald C. D. Chang, Frank A. Hagen, Alan Cha | 2004-07-13 |
| 6756937 | Stratospheric platforms based mobile communications architecture | Donald C. D. Chang, Ying Feria, Weizheng Wang, Alan Cha, Kar W. Yung +1 more | 2004-06-29 |
| 6751458 | Architecture utilizing frequency reuse in accommodating user-link and feeder-link transmissions | Weizheng Wang, Donald C. D. Chang, Ying Feria, Alan Cha | 2004-06-15 |
| 6725013 | Communication system having frequency reuse in non-blocking manner | Donald C. D. Chang, Weizheng Wang, Ying Feria, Harold A. Rosen, Wah L. Lim | 2004-04-20 |