Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11644578 | System for determining high-integrity navigation solutions via optimal partial fixing of floating-point integer ambiguities | Huan T. Phan, Michael J. Armatys | 2023-05-09 |
| 11221419 | High integrity partial almost-fix solution | Huan T. Phan, Michael J. Armatys | 2022-01-11 |
| 10274606 | High integrity partial almost fix solution | Huan T. Phan, Michael J. Armatys | 2019-04-30 |
| 9883348 | Indoor navigation and orientation determination system | Brad A. Walker, Steven E. Koenck | 2018-01-30 |
| 9638526 | GPS carrier-phase based relative navigation | Vladislav Gavrilets, Patrick Y. Hwang | 2017-05-02 |
| 9596073 | Picosecond clock synchronization technique for communication and navigation platform equipment | Gina M. Reyes, Jason H. Timmerman, James H. Doty, Patrick Y. Hwang, Guolin Peng | 2017-03-14 |
| 8880001 | Collaborative positioning, navigation and timing | Patrick Y. Hwang | 2014-11-04 |
| 8849481 | GPS carrier-phase based relative navigation | Vladislav Gavrilets, Patrick Y. Hwang | 2014-09-30 |
| 8193981 | Coordinated sensing and precision geolocation of target emitter | Patrick Y. Hwang, Robert J. Frank | 2012-06-05 |
| 8010287 | Frequency hopping data link approach to autonomous GPS denied relative navigation determination | Robert J. Frank, Scott J. F. Zogg, Dana J. Jensen, Bernard A. Schnaufer | 2011-08-30 |
| 7679554 | Communications link time transfer to improve navigation system accuracy | Patrick Y. Hwang, Bernard A. Schnaufer, David A. Anderson | 2010-03-16 |
| 7570204 | Generalized divergence-free carrier smoothing and dual frequency differential GPS architecture implementing the same | — | 2009-08-04 |
| 7418343 | Relative navigation for precision rendezvous and station keeping using datalink signals | Robert J. Frank, Kenneth M. Peterson, Richard S. Haendel, Scott J. F. Zogg | 2008-08-26 |
| 7405694 | Communication link time transfer to improve navigation system accuracy | Patrick Y. Hwang, Bernard A. Schnaufer, David A. Anderson | 2008-07-29 |
| 7219013 | Method and system for fault detection and exclusion for multi-sensor navigation systems | Shih-Yih Young | 2007-05-15 |
| 6819983 | Synthetic pressure altitude determining system and method with wind correction | — | 2004-11-16 |
| 6804614 | Synthetic pressure altitude determining system and method | Douglas A. Bell | 2004-10-12 |
| 6757624 | Synthetic pressure altitude determining system and method of integrity monitoring from a pressure sensor | Patrick Y. Hwang | 2004-06-29 |
| 6687316 | High resolution correlator technique for spread spectrum ranging system code and carrier multipath mitigation | — | 2004-02-03 |
| 6636558 | Multipath mitigation approach for spread spectrum ranging/positioning systems | Bernard A. Schnaufer | 2003-10-21 |
| 6520448 | Spinning-vehicle navigation using apparent modulation of navigational signals | James H. Doty | 2003-02-18 |
| 6198430 | Enhanced differential GNSS carrier-smoothed code processing using dual frequency measurements | Patrick A. Hwang, John R. Bader | 2001-03-06 |
| 4471945 | Apparatus for hoisting railcar freight bracing bulkheads and trolleys | — | 1984-09-18 |