| Patent Number |
Title Of Patent |
Date Issued |
| 7254141 |
Method, system and storage medium for allocating bandwidth in a communication network |
August 7, 2007 |
| A method and system for allocating bandwidth in an optical communication system. During a set-up phase, a set-up message including requesting a connection is generated and includes a requested priority and requested bandwidth. When a switch receives the set-up message, the switch det |
| 7181545 |
Network synchronization architecture for a Broadband Loop Carrier (BLC) system |
February 20, 2007 |
| A combined wide area network (WAN) port/synchronization unit that receives inputs including data and timing information and that synchronizes the data for transmission. The unit includes the following components. A network interface receives the input and removes data and primary timing |
| 7039312 |
Distributed intelligence wavelength division multiplexed network |
May 2, 2006 |
| The present invention is directed toward a distributed intelligence fiber-optic communication network in which node control processors (NCPs) associated with each network element periodically transmit identification and status information to the other NCPs in the network. Various faults |
| 7020696 |
Distributed user management information in telecommunications networks |
March 28, 2006 |
| The present invention provides a method and apparatus for implementing distributed user management information in telecommunications networks. At least a portion of a user's management information is stored in a team session file that is accessible by a network management system (NMS) |
| 6873623 |
System and method for overlaying DSL access multiplexer onto existing access systems |
March 29, 2005 |
| A digital subscriber line access multiplexer overlay onto a digital loop carrier system for transporting high speed digital data over an existing backplane which carries voice, data, and test signals between voice line cards and a carrier line. The voice signals are time division multipl |
| 6714537 |
Switch fabric architecture and techniques for implementing rapid hitless switchover |
March 30, 2004 |
| A switch is provided that receives user information through a plurality of framer circuits, which group the user information into frames. The frames are fed to a switch fabric including an array of switch elements, each having a switch matrix for routing each frame to a desired output in |
| 5748349 |
Gratings-based optical add-drop multiplexers for WDM optical communication system |
May 5, 1998 |
| The present invention provides a gratings-based add-drop multiplexer in which plural optical channels can be added and/or dropped by the same optical device in a manner which avoids transmitting an optical channel through a radiation mode loss region of a Bragg grating. In one embodi |
| 5742416 |
Bidirectional WDM optical communication systems with bidirectional optical amplifiers |
April 21, 1998 |
| The present invention provides a bidirectional WDM optical communication system with bidirectional optical amplifiers for optically amplifying two counter-propagating WDM optical signals. The bidirectional WDM optical communication system includes a first set of optical transmitters for |
| 5726784 |
WDM optical communication system with remodulators and diverse optical transmitters |
March 10, 1998 |
| A WDM optical communication system is described which is capable of placing information from incoming information-bearing optical signals onto N optical signal channels for conveyance over an optical waveguide. The optical system includes a first set of one or more optical transmitters, |
