Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6930639 | Dual-element microstrip patch antenna for mitigating radio frequency interference | Frank N. Bauregger, Todd Walter, Dennis M. Akos | 2005-08-16 |
| 6868110 | Multipath and tracking error reduction method for spread-spectrum receivers | Robert Eric Phelts | 2005-03-15 |
| 6031882 | Adaptive equalization of multipath signals | Dominic Gerard Farmer, John F. Schipper | 2000-02-29 |
| 5944770 | Method and receiver using a low earth orbiting satellite signal to augment the global positioning system | Nicholas C. Talbot | 1999-08-31 |
| 5812961 | Method and reciever using a low earth orbiting satellite signal to augment the global positioning system | Nicholas C. Talbot | 1998-09-22 |
| 5745075 | Multi-tone DGPS beacon transmitter and receiver | David W. Young | 1998-04-28 |
| 5630208 | Adaptive multipath equalization | Dominic Gerard Farmer, John F. Schipper | 1997-05-13 |
| 5621646 | Wide area differential GPS reference system and method | Todd Walter, Yi-Chung Chao | 1997-04-15 |
| 5465413 | Adaptive noise cancellation | Dominic Gerard Farmer, Brian Westfall | 1995-11-07 |
| 5278568 | Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for communications inbound from the mobile terminals and outbound from the base terminals via Loran communication signals | Paul R. Johannessen, Julian Bussgang | 1994-01-11 |
| 4821038 | Method of and apparatus for Loran-C message communication with reduced skywave navigation location errors and the like | — | 1989-04-11 |
| 4800391 | Method of and apparatus for message communication on Loran-C navigational signal broadcasts and the like with reduced navigation errors | — | 1989-01-24 |