Patents by Inventor Robert D. Doverspike

Robert D. Doverspike 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).

  • Link selection schemes for avoiding channel contention
    Patent number: 8068412
    Abstract: A connection in an optical communication system is routed over a sequence of cross-connects and aggregated links comprising multiple links. A different link selection algorithm is used for service provisioning than is used for restoration, i.e., after a cable cut or other failure or incident has made one or paths in the network suddenly unavailable. In particular, a special link selection algorithm called the Interleave algorithm is used for restoration different from the well known Best-Fit algorithm used for provisioning. The Interleave algorithm substantially reduces the probability of glare while maintaining near-optimum capacity utilization.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: November 29, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Bruce G. Cortez, Robert D. Doverspike, Rakesh K. Sinha, John L. Strand, Fang Yu
  • Link selection schemes for avoiding channel contention
    Patent number: 7450516
    Abstract: A connection in an optical communication system is routed over a sequence of cross-connects and aggregated links comprising multiple links. A different link selection algorithm is used for service provisioning than is used for restoration, i.e., after a cable cut or other failure or incident has made one or paths in the network suddenly unavailable. In particular, a special link selection algorithm called the Interleave algorithm is used for restoration different from the well known Best-Fit algorithm used for provisioning. The Interleave algorithm substantially reduces the probability of glare while maintaining near-optimum capacity utilization.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: November 11, 2008
    Assignee: AT&T Corp.
    Inventors: Bruce G. Cortez, Robert D. Doverspike, Rakesh K. Sinha, John L. Strand, Fang Yu