| 9068847 |
System and method for collaborative navigation |
Kailash Krishnaswamy, Wayne A. Soehren |
2015-06-30 |
| 8670932 |
Correlation position determination |
— |
2014-03-11 |
| 8582086 |
Range measurement device |
Michael Ray Elgersma |
2013-11-12 |
| 8554478 |
Correlation position determination |
— |
2013-10-08 |
| 8397181 |
Method and apparatus for marking a position of a real world object in a see-through display |
Duke Buster |
2013-03-12 |
| 8334893 |
Method and apparatus for combining range information with an optical image |
— |
2012-12-18 |
| 8174562 |
Stereo camera having 360 degree field of view |
— |
2012-05-08 |
| 7948403 |
Apparatus and method for aligning an aircraft |
— |
2011-05-24 |
| 7852463 |
Range measurement device |
Michael Ray Elgersma |
2010-12-14 |
| 7778111 |
Methods and systems for underwater navigation |
Wesley J. Hawkinson, Kevin Sweeney |
2010-08-17 |
| 6860023 |
Methods and apparatus for automatic magnetic compensation |
Mark T. Manfred, James E. Lenz, Kevin D. Vanderwerf, Lawrence C. Vallot |
2005-03-01 |
| 6826476 |
Apparatus for improved integrity of wide area differential satellite navigation systems |
Mark A. Ahlbrecht |
2004-11-30 |
| 5631656 |
Fail safe system with common mode avoidance |
Robert Girts |
1997-05-20 |
| 5608393 |
Differential ground station repeater |
— |
1997-03-04 |
| 5557284 |
Spoofing detection system for a satellite positioning system |
— |
1996-09-17 |
| 5504492 |
Look ahead satellite positioning system position error bound monitoring system |
Kim A. Class |
1996-04-02 |
| 5361212 |
Differential GPS landing assistance system |
Kim A. Class, Brett J. Helgeson |
1994-11-01 |