Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6230100 | Method and apparatus for differential scale factor calibration in differential odometry systems integrated with GPS | — | 2001-05-08 |
| 6211819 | Mobile station location determination in a radio communication system | Thomas M. King | 2001-04-03 |
| 6151551 | Method and apparatus for generating an indication of loss of positioning integrity in emergency call systems | Chu Gen Wang | 2000-11-21 |
| 6134484 | Method and apparatus for maintaining the integrity of spacecraft based time and position using GPS | Roger Charles Hart, Gaylin David Brenchley | 2000-10-17 |
| 6091359 | Portable dead reckoning system for extending GPS coverage | — | 2000-07-18 |
| 5928295 | Method and apparatus for automatic calibration of the wheel track of a movable vehicle | — | 1999-07-27 |
| 5784029 | Recognition of and method and apparatus for GPS antenna lever arm compensation in integrated GPS/dead reckoning navigation systems | — | 1998-07-21 |
| 5752220 | Method for heading error suppression in dead reckoning systems | — | 1998-05-12 |
| 5745868 | Method for rapid recovery from dead reckoning system heading loss | — | 1998-04-28 |
| 5525998 | Odometer assisted GPS navigation method | — | 1996-06-11 |