Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5926113 | Automatic determination of traffic signal preemption using differential GPS | Gary V. Jones, James Hume, Richard G. Keegan | 1999-07-20 |
| 5764184 | Method and system for post-processing differential global positioning system satellite positional data | Frederick W. Nelson | 1998-06-09 |
| 5717403 | Method and appartus for accurate frequency synthesis using global positioning system timing information | Frederick W. Nelson, Richard Kai-Tuen Woo | 1998-02-10 |
| 5471217 | Method and apparatus for smoothing code measurements in a global positioning system receiver | Jerry E. Knight | 1995-11-28 |
| 5177489 | Pseudolite-aided method for precision kinematic positioning | — | 1993-01-05 |
| 5072227 | Method and apparatus for precision attitude determination | — | 1991-12-10 |
| 4963889 | Method and apparatus for precision attitude determination and kinematic positioning | — | 1990-10-16 |
| 4812991 | Method for precision dynamic differential positioning | — | 1989-03-14 |
| 4797841 | Method and apparatus for automatic calibration of magnetic compass | — | 1989-01-10 |
| 4611293 | Method and apparatus for automatic calibration of magnetic compass | Richard G. Keegan | 1986-09-09 |