Patents by Inventor Ishan Prabhath Weerakoon

Ishan Prabhath Weerakoon 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: 7778265
    Abstract: A method (300) and apparatus (200) for local adaptive provisioning at a node is disclosed. The method may include determining (320) a per packet latency for a class of packet network traffic in a queue of a plurality of queues for a plurality of classes of packet network traffic at a node, establishing (330) a reward function for the class of packet network traffic based on a packet latency limit, based on the per packet latency, and based on a source rate for the class of packet network traffic, and adjusting (340) provisioning of a queue at the node based on the reward function.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: August 17, 2010
    Assignee: Lockheed Martin Corporation
    Inventors: Scott Charles Evans, Ping Liu, Thomas Markham, Ishan Prabhath Weerakoon, Sergei Dolinsky
  • Patent number: 7720065
    Abstract: A method and apparatus for biasing of network node packet prioritization based on packet content. The method may include marking a packet of data from a data stream of packets. The packet can be marked with a packet type such that subsequent nodes determine the relative priority of the packet with respect to other packets from the same data stream based on the packet type marking. The marked packet can then be transmitted. According to a related corresponding embodiment, a method can include receiving a packet at a node in a network, the node including a plurality of packet queues including a higher priority queue and a lower priority queue. The relative priority of the packet can be determined relative to other packets from the same packet source and intended for the same destination, where the relative priority can be based on the contents of the packet. The relative priority may also be based on a marking of the packet.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: May 18, 2010
    Assignee: Lockheed Martin Corporation
    Inventors: Ping Liu, Scott Charles Evans, Ishan Prabhath Weerakoon
  • Publication number: 20090304014
    Abstract: A method (300) and apparatus (200) for local adaptive provisioning at a node is disclosed. The method may include determining (320) a per packet latency for a class of packet network traffic in a queue of a plurality of queues for a plurality of classes of packet network traffic at a node, establishing (330) a reward function for the class of packet network traffic based on a packet latency limit, based on the per packet latency, and based on a source rate for the class of packet network traffic, and adjusting (340) provisioning of a queue at the node based on the reward function.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 10, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Scott Charles Evans, Ping Liu, Thomas Stephen Markham, Ishan Prabhath Weerakoon, Sergei Dolinsky
  • Publication number: 20090219937
    Abstract: A method and apparatus for biasing of network node packet prioritization based on packet content. The method may include marking a packet of data from a data stream of packets. The packet can be marked with a packet type such that subsequent nodes determine the relative priority of the packet with respect to other packets from the same data stream based on the packet type marking. The marked packet can then be transmitted. According to a related corresponding embodiment, a method can include receiving a packet at a node in a network, the node including a plurality of packet queues including a higher priority queue and a lower priority queue. The relative priority of the packet can be determined relative to other packets from the same packet source and intended for the same destination, where the relative priority can be based on the contents of the packet. The relative priority may also be based on a marking of the packet.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Ping LIU, Scott Charles Evans, Ishan Prabhath Weerakoon