| 7489867 |
VoIP service over an ethernet network carried by a DWDM optical supervisory channel |
Valerio Viscardi, Filippo Bentivoglio Ravasio |
2009-02-10 |
| 7231146 |
Optical communication system |
Marcos Antonio Brandão Sanches, Francesca Loseto, Piergiovanni Matrona, Mario Tamburello |
2007-06-12 |
| 7072580 |
Autoprotected optical communication ring network |
Valerio Viscardi, Aldo Aprile |
2006-07-04 |
| 6973267 |
Autoprotected optical communication ring network |
Valerio Viscardi |
2005-12-06 |
| 6804463 |
Connection verification for all-optical cross-connects by signal cross-correlation |
Valerio Viscardi, Giacomo Losio |
2004-10-12 |
| 6661972 |
Method and apparatus for transparent optical communication with two-fiber bidirectional ring with autoprotection and management of low priority traffic |
— |
2003-12-09 |
| 6580530 |
Optical communication system |
Marcos Antonio Brandão Sanches, Francesca Loseto, Piergiovanni Matrona, Mario Tamburello |
2003-06-17 |
| 6456406 |
Transparent optical self-healing-ring communication network |
Fausto Meli, Marcos Brandao Sanches |
2002-09-24 |
| 6400476 |
Method and apparatus for transparent optical communication with two-fiber bidirectional ring with autoprotection and management of low priority traffic |
— |
2002-06-04 |
| 5903371 |
Transparent optical self-healing-ring communication network |
Fausto Meli, Marcos Antonio Brandão Sanches |
1999-05-11 |