Patents by Inventor David D. Ng

David D. Ng 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).

  • Network path selection based on bandwidth
    Patent number: 7072304
    Abstract: Determining a predetermined number of paths from a source node to a destination node in a network with nodes interconnected by links having metric values. A path between the source node and a current node is determined and expanded using selected links connected to the current node. The expanded paths are evaluated based on a value for a selected metric to determine those expanded paths having desirable selected metric values. The expanded paths with desirable selected metric values are evaluated to determine the path having the highest available bandwidth for all distinct segments.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: July 4, 2006
    Assignee: Nortel Networks Limited
    Inventors: David D. Ng, Richard A. Stephens, Yolaine Legare
  • Network path selection based on bandwidth
    Publication number: 20030161338
    Abstract: Determining a predetermined number of paths from a source node to a destination node in a network with nodes interconnected by links having metric values. A path between the source node and a current node is determined and expanded using selected links connected to the current node. The expanded paths are evaluated based on a value for a selected metric to determine those expanded paths having desirable selected metric values. The expanded paths with desirable selected metric values are evaluated to determine the path having the highest available bandwidth for all distinct segments.
    Type: Application
    Filed: March 27, 2002
    Publication date: August 28, 2003
    Inventors: David D. Ng, Richard A. Stephens, Yolaine Legare