Patents by Inventor Glenn Sutherland

Glenn Sutherland 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).

  • Patent number: 6477582
    Abstract: A method is described for path selection in communications networks with multiple QoS metrics. This method takes an additive metric (say, cost) as a path minimization target and a concave metric (say, bandwidth) as a minimum requirement for each link. A potential objective is to find a path between a source node and a destination node in a communications network such that the bandwidth of each link in the path exceeds a bandwidth requirement and the cost of the path is minimized. The method eliminates from consideration those links whose available bandwidth does not exceed a required bandwidth. The method then reassigns the cost of those links whose available bandwidth does not exceed a function of the required bandwidth. A path from the source node to the destination node is then selected, using only links still under consideration, corresponding to a path wherein cost is minimized.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: November 5, 2002
    Assignee: Nortel Networks Limited
    Inventors: Gang Luo, Jianli Wang, Glenn Sutherland