Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9106446 | Method and apparatus for assigning and allocating network resources to packet-based virtual private networks | Raymond Aubin, Stephen Shew | 2015-08-11 |
| 8942231 | Communication between call controllers by amending call processing messages | Stephen Shew, Erning Ye | 2015-01-27 |
| 8885490 | Failure notification in a network having serially connected nodes | David Allan, Nigel Bragg, Peter Ashwood Smith, Paul Unbehagen | 2014-11-11 |
| 8560697 | Method and apparatus for assigning and allocating network resources to layer 1 Virtual Private Networks | Raymond Aubin, Stephen Shew | 2013-10-15 |
| 8300625 | Call control using a layered call model | Stephen Shew, Nigel Davis, Erning Ye | 2012-10-30 |
| 8223660 | Failure notification in a network having serially connected nodes | David Allan, Nigel Bragg, Peter Ashwood Smith, Paul Unbehagen | 2012-07-17 |
| 8199773 | Method and apparatus for assigning and allocating network resources to packet-based virtual private networks | Raymond Aubin, Stephen Shew | 2012-06-12 |
| 8135846 | Communication between call controllers by amending call processing messages | Stephen Shew, Erning Ye | 2012-03-13 |
| 8005964 | Communication between call controllers by amending call processing messages | Stephen Shew, Erning Ye | 2011-08-23 |
| 7792044 | Service management channel for managing an optical networking service | Marc Holness, Donald Ellis, Paul A. Littlewood | 2010-09-07 |
| 7787494 | Method and apparatus for assigning and allocating network resources to packet-based virtual private networks | Raymond Aubin, Stephen Shew | 2010-08-31 |
| 7711828 | Communication between call controllers by amending call processing messages | Stephen Shew, Erning Ye | 2010-05-04 |
| 7680934 | Method and apparatus for assigning and allocating network resources to layer 1 virtual private networks | Raymond Aubin, Stephen Shew | 2010-03-16 |
| 7499407 | System and method for managing an optical networking service | Marc Holness, Donald Ellis, Paul A. Littlewood | 2009-03-03 |
| 7443831 | Call control using a layered call model | Stephen Shew, Nigel Davis, Erning Ye | 2008-10-28 |
| 7436828 | Method and apparatus for label switching data packets | David Allan | 2008-10-14 |
| 7372803 | Apparatus and method for establishment and protection of connections within mesh networks | Evert de Boer, James Shields, Richard Trudel | 2008-05-13 |
| 7197031 | Cross-connection of high bandwidth signal traffic across independent parallel shelves | Kim B. Roberts, Ronald J. Gagnon | 2007-03-27 |
| 7162536 | Validation of a connection between arbitrary end-nodes in a communications network | Kim B. Roberts, Ronald J. Gagnon | 2007-01-09 |
| 7127171 | Architectural arrangement for bandwidth management in large central offices | David Wright Martin, Xinyi Liu, Bogdan Jakobik, Sarto Barsetti, Mark Acton Gibbon | 2006-10-24 |
| 6810011 | Protection switching within an OP-n layer | — | 2004-10-26 |
| 6195367 | Architectural arrangement for bandwidth management in large central offices | Bogdan Jakobik, Sarto Barsetti, David Wright Martin, Xinyi Liu, Mark Acton Gibbon | 2001-02-27 |
| 4837760 | Communications system with protection switching using individual selectors | David I. Reid, John C. Ellson | 1989-06-06 |
| 4646286 | Communications system with protection switching and channel identities | David I. Reid, John C. Ellson | 1987-02-24 |
| 4408189 | Method and apparatus for code conversion of binary to multilevel signals | Alan Graves, Frederick M. Pascoe, James E. Dilley | 1983-10-04 |