Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6178195 | Method and apparatus for detecting spread spectrum signals using a signal from a secondary source | Raymond J. Leopold | 2001-01-23 |
| 5995042 | Spoofer detection power management for GPS receivers | David Moon Yee, Robert H. Bickley, Philip John Zucarelli | 1999-11-30 |
| 5768319 | GPS data collection in high noise-to-signal ratio environments | — | 1998-06-16 |
| 5619211 | Position locating and communication system using multiple satellite constellations | Philip R. Horkin, Stephen Ma, George William Muncaster | 1997-04-08 |
| 5266958 | Direction indicating apparatus and method | — | 1993-11-30 |
| 5119504 | Position aided subscriber unit for a satellite cellular system | — | 1992-06-02 |
| 4998111 | CPS transform correlation receiver and method | Stephen Ma | 1991-03-05 |
| 4381508 | Clutter compensated sidelobe cancelling communications system | — | 1983-04-26 |