Patents by Inventor Bhargav Bellur

Bhargav Bellur 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).

  • Publication number: 20070211636
    Abstract: Enhanced mesh network performance is provided by computation of a path metric with respect to multi-hop paths between nodes in a mesh network and determination of a path through the mesh network that is optimal according to the path metric. Information is communicated in the mesh network according to the determined path. Nodes in the mesh network are enabled to communicate via one or more wireless links and/or one or more wired links. The path metric optionally includes an effective bandwidth path metric having elements (listed from highest to lowest conceptual priority) including an inverse of a sustainable data rate, a number of wireless links, and a number of wireless and wired links. The sustainable data rate is a measure of communication bandwidth that is deliverable by a path for a period of time. Accounting is made for interference between contiguous wireless links operating on the same channel.
    Type: Application
    Filed: December 29, 2006
    Publication date: September 13, 2007
    Inventors: Bhargav Bellur, Ravi Prakash, Amar Singhal, Jorjeta Jetcheva
  • Patent number: 6804199
    Abstract: Methods for determining at least two pre-computed paths to a destination in a communications network are provided. The two paths are maximally disjoint. Maximally disjoint paths are paths where the number of links or nodes common to the two paths is minimized. This minimization is given a priority over other path considerations, such as bandwidth or cost metrics. By pre-computing a maximally disjoint pair of paths, the probability that an inoperable link or node is in both paths is minimized. The probability that the inoperable link or node blocks a transfer of data is minimized. Additionally, a pair of maximally disjoint paths is determined even if absolutely disjoint paths are not possible. The communications network may include at least four nodes, and maximally disjoint pairs of paths are pre-computed from each node to each other node. A third path from each node to each other node may also be computed as a function of bandwidth or a cost metric.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: October 12, 2004
    Assignee: Sprint Communications Company, L.P.
    Inventors: Timothy Gene Kelly, Nina Anne Taft, William Lee Edwards, Richard G. Ogier, Bhargav Bellur
  • Patent number: 6542469
    Abstract: Methods for determining at least two pre-computed paths to a destination in a communications network are provided. The two paths are maximally disjoint. Maximally disjoint paths are paths where the number of links or nodes common to the two paths is minimized. This minimization is given a priority over other path considerations, such as bandwidth or cost metrics. By pre-computing a maximally disjoint pair of paths, the probability that an inoperable link or node is in both paths is minimized. The probability that the inoperable link or node blocks a transfer of data is minimized. Additionally, a pair of maximally disjoint paths is determined even if absolutely disjoint paths are not possible. The communications network may include at least four nodes, and maximally disjoint pairs of paths are pre-computed from each node to each other node. A third path from each node to each other node may also be computed as a function of bandwidth or a cost metric.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: April 1, 2003
    Assignee: Sprint Communications Company, L.P.
    Inventors: Timothy Gene Kelley, Nina Anne Taft, William Lee Edwards, Richard G. Ogier, Bhargav Bellur