Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7187326 | System and method for cumulant-based geolocation of cooperative and non-cooperative RF transmitters | Edward R. Beadle, John F. Dishman, Richard H. Anderson, Paul D. Anderson | 2007-03-06 |
| 7068219 | Communications system including phased array antenna providing nulling and related methods | Harry Richard Phelan, Mark Goldstein | 2006-06-27 |
| 6931362 | System and method for hybrid minimum mean squared error matrix-pencil separation weights for blind source separation | Edward R. Beadle, Richard H. Anderson, John F. Dishman, Paul D. Anderson | 2005-08-16 |
| 6917784 | Image formation by passive collection and processing of radio frequency signals illuminating and scattered by cultural features of terrestrial region | John W. Shipley | 2005-07-12 |
| 6708032 | Base station hand-off mechanism for cellular communication system | Julian Bartow Willingham, Gates H. Fortier, Joseph A. Brasic | 2004-03-16 |
| 6700527 | Coherent two-dimensional image formation by passive synthetic aperture collection and processing of multi-frequency radio signals scattered by cultural features of terrestrial region | John W. Shipley | 2004-03-02 |
| 6411612 | Selective modification of antenna directivity pattern to adaptively cancel co-channel interference in TDMA cellular communication system | Karen W. Halford, Julian Bartow Willingham, Mark A. Webster, Gregory Sinclair | 2002-06-25 |
| 6397083 | Bootstrapped, piecewise-asymptotic directivity pattern control mechanism setting weighting coefficients of phased array antenna | Steven D. Halford, John C. Henry | 2002-05-28 |
| 6384773 | Adaptive fragmentation and frequency translation of continuous spectrum waveform to make use of discontinuous unoccupied segments of communication bandwidth | John W. Shipley | 2002-05-07 |
| 6240290 | Base station hand-off mechanism for cellular communication system | Julian Bartow Willingham, Gates H. Fortier, Joseph A. Brasic | 2001-05-29 |
| 6188915 | Bootstrapped, piecewise-asymptotic directivity pattern control mechanism setting weighting coefficients of phased array antenna | Steven D. Halford, John C. Henry | 2001-02-13 |
| 6147657 | Circular phased array antenna having non-uniform angular separations between successively adjacent elements | Robert C. Hildebrand | 2000-11-14 |
| 4628321 | Aperture transformation sidelobe canceller | — | 1986-12-09 |
| 4255791 | Signal processing system | — | 1981-03-10 |