Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8538272 | Data security in optical communications systems | Alan Robinson, Adrian Sparks | 2013-09-17 |
| 7580630 | Spectral shaping for optical OFDM transmission | Huai Kee, Richard E. Epworth, Alan Robinson | 2009-08-25 |
| 7471903 | Optical communication system | Robert Friskney, Adrian Sparks, Robert Spagnoletti | 2008-12-30 |
| 7469106 | Reference phase and amplitude estimation for coherent optical receiver | Ricardo Feced, Epworth Richard | 2008-12-23 |
| 7389055 | DQPSK receiver phase control | Hual Kee, Alan Robinson | 2008-06-17 |
| 7315584 | Coherent receiver | Richard E. Epworth, Seb Savory | 2008-01-01 |
| 7085501 | Coherent optical receiver | Richard E. Epworth, Seb Savory | 2006-08-01 |
| 7020074 | Synchronization method and apparatus for frequency division multiplexed telecommunication systems | John C. Greenwood, Philip Athelstan Wainman | 2006-03-28 |
| 6785532 | Power line communications | — | 2004-08-31 |
| 6404773 | Carrying speech-band signals over a power line communications system | Roy L. Williams, Martin Brent Daniells | 2002-06-11 |
| 6317031 | Power line communications | — | 2001-11-13 |
| 6037678 | Coupling communications signals to a power line | — | 2000-03-14 |
| 6011513 | Beamforming circuitry | Fiona Wilson | 2000-01-04 |
| 5995566 | Interference reduction in telecommunication systems | Benedict Russell Freeman | 1999-11-30 |
| 5977650 | Transmitting communications signals over a power line network | Matthew Fradley | 1999-11-02 |
| 5828293 | Data transmission over a power line communications system | — | 1998-10-27 |
| 5818517 | Broadband interference reduction | John Hudson, Christopher J. Reed | 1998-10-06 |
| 5726980 | Time division duplex communications repeater | — | 1998-03-10 |