Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493380 | System and method for estimating signal time of arrival | Song Zhang, Xixian Chen | 2002-12-10 |
| 6353744 | Method for positioning with low geometrical dilution of position (GDOP) | Song Zhang, Xixian Chen | 2002-03-05 |