Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8538272 | Data security in optical communications systems | Alan Robinson, Robin Paul Rickard | 2013-09-17 |
| 7620322 | Load sharing nodes in a network utilising shared optical protection | Peter Anslow, Peter David Roorda | 2009-11-17 |
| 7471903 | Optical communication system | Robert Friskney, Robert Spagnoletti, Robin Paul Rickard | 2008-12-30 |
| 7400583 | Determining and using value of traffic relying on a given component of a communications network | Robert Friskney, Simon Parry, Nigel Davis | 2008-07-15 |
| 7187865 | Hybrid photonic/electronic switching in a multi-channel network | Alan T. R. Briggs, Frederick James Lalonde, H. D. Wade Macleod, Douglas Fisher | 2007-03-06 |
| 6643464 | Constrained optical mesh protection for transmission systems | Peter David Roorda, Nigel Baker | 2003-11-04 |
| 6625340 | Optical switch attenuator | Robert Spagnoletti, Gordon D Henshall | 2003-09-23 |
| 6594413 | Optical switching device | Frederick James Lalonde, Peter David Roorda | 2003-07-15 |
| 6574384 | Testing operation of a photonic switch | George Cannell | 2003-06-03 |
| 6424757 | Optical switch alignment apparatus and method | Duncan Forbes | 2002-07-23 |
| 6396969 | Distributed optical switching device | Peter David Roorda | 2002-05-28 |
| 6151356 | Method and apparatus for phase detection in digital signals | Robert Spagnoletti, Stephen R. Foster | 2000-11-21 |
| 6028898 | Signal regenerator | Piers James Geoffrey Dawe, Robert Spagnoletti | 2000-02-22 |
| 5576873 | Telecommunications switch architecture | William Crossland, Robert W. A. Scarr, Martin J. Birch | 1996-11-19 |