Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369693 | Method of, and system for, transferring secure data | — | 2002-04-09 |
| 6366573 | Method of, and system for, transmitting messages | David J. Smith | 2002-04-02 |
| 6239690 | Battery economizing in a communications system | Richard Charles Burbidge, David Klyce Roberts, Philip Anthony Jamieson | 2001-05-29 |
| 6021311 | Method of, and system for, transmitting messages | Peter M. Relph, John Bell | 2000-02-01 |
| 5892793 | Spread spectrum signalling schemes | — | 1999-04-06 |
| 5881092 | Spread spectrum telecommunication system | — | 1999-03-09 |
| 5872522 | Selective call system | — | 1999-02-16 |
| 4682117 | Quadrature demodulation data receiver with phase error correction | — | 1987-07-21 |
| 4570125 | FSK Demodulator with concurrent carrier and clock synchronization | — | 1986-02-11 |
| 4539646 | Tone detection arrangement | Paul J. Stein | 1985-09-03 |
| 4241452 | Automatic frequency control system | Raymond R. Wells | 1980-12-23 |