Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7791534 | GNSS time fraction calibration of a real time clock | Xiaorong Zhi, Yiming Yu | 2010-09-07 |
| 7532159 | Fast time to first fix by calibration of a real time clock | Xiaorong Zhi, Yiming Yu | 2009-05-12 |
| 6114989 | GPS data recorder and playback system | John O'Boyle, III, Sven Dietrich, Aaron Morton | 2000-09-05 |