Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762718 | Wavefront-projection beamformer | Donald C. D. Chang, Kar W. Yung, Frank A. Hagen | 2004-07-13 |
| 6756937 | Stratospheric platforms based mobile communications architecture | Donald C. D. Chang, Ming U. Chang, Ying Feria, Alan Cha, Kar W. Yung +1 more | 2004-06-29 |
| 6751458 | Architecture utilizing frequency reuse in accommodating user-link and feeder-link transmissions | Donald C. D. Chang, Ming U. Chang, Ying Feria, Alan Cha | 2004-06-15 |
| 6725013 | Communication system having frequency reuse in non-blocking manner | Donald C. D. Chang, Ying Feria, Ming U. Chang, Harold A. Rosen, Wah L. Lim | 2004-04-20 |