Patents by Inventor Anthony M. Ffrench

Anthony M. Ffrench has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for allocating protection bandwidth in a telecommunications mesh network
    Patent number: 7308198
    Abstract: A telecommunications mesh network includes a plurality of nodes each interconnected by an edge. A traffic demand is received having a working path with a link of edges interconnecting a source node with a destination node. The telecommunications mesh network has one or more pre-cross-connected trails associated therewith that are subdivided into one or more subtrails. Subtrails that do not meet pre-determined conditions are discarded. A logical graph representation of the telecommunications mesh network is created from subtrails that have not been discarded. Unused, shortcut, and rival edges are inserted into the logical graph. A shortest admissible protection path from the source node to the destination node is identified from the logical graph.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: December 11, 2007
    Assignee: Tellabs Operations, Inc.
    Inventors: Fabian A. Chudak, Anthony M. Ffrench, Timothy Y. Chow