Patents by Inventor Stephen North

Stephen North 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).

  • Method and apparatus for measuring and extracting proximity in networks
    Patent number: 8565122
    Abstract: A method and apparatus for measuring and extracting proximity in networks are disclosed. In one embodiment, the present method receives a network from a user for analysis and extraction of a smaller proximity sub-graph. The method computes a candidate sub-graph and determines at least one Cycle Free Escape Conductivity (CFEC) proximity of at least two nodes in accordance with the candidate sub-graph. The method then extracts and presents a proximity sub-graph that best captures the proximity.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: October 22, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Yehuda Koren, Stephen North, Christopher Volinsky
  • METHOD AND APPARATUS FOR MEASURING AND EXTRACTING PROXIMITY IN NETWORKS
    Publication number: 20110044197
    Abstract: A method and apparatus for measuring and extracting proximity in networks are disclosed. In one embodiment, the present method receives a network from a user for analysis and extraction of a smaller proximity sub-graph. The method computes a candidate sub-graph and determines at least one Cycle Free Escape Conductivity (CFEC) proximity of at least two nodes in accordance with the candidate sub-graph. The method then extracts and presents a proximity sub-graph that best captures the proximity.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Inventors: Yehuda Koren, Stephen North, Christopher Volinsky
  • Method and apparatus for measuring and extracting proximity in networks
    Patent number: 7830815
    Abstract: A method and apparatus for measuring and extracting proximity in networks are disclosed. In one embodiment, the present method receives a network from a user for analysis and extraction of a smaller proximity sub-graph. The method computes a candidate sub-graph and determines at least one Cycle Free Escape Conductivity (CFEC) proximity of at least two nodes in accordance with the candidate sub-graph. The method then extracts and presents a proximity sub-graph that best captures the proximity.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: November 9, 2010
    Assignee: AT&T Intellectual Property II
    Inventors: Yehuda Koren, Stephen North, Christopher Volinsky
  • System and method for contiguous images from polygons
    Publication number: 20050062763
    Abstract: A system, method and computer-readable media are disclosed for generating an image from another image of contiguous polygons and a vector containing values to which areas of corresponding polygons are scaled. The method embodiment relates to generating an image from a plurality of contiguous polygons having vertices. The method comprises calculating a shape value associated with a polygon, calculating an altered shape value associated with an altered polygon, the altered polygon being an altered version of the polygon, calculating a shape distortion by comparing the shape value and the altered shape value and determining whether to accept the altered polygon based on the calculated shape distortion.
    Type: Application
    Filed: October 13, 2004
    Publication date: March 24, 2005
    Applicant: AT&T Corp.
    Inventors: Daniel Keim, Stephen North, Christian Panse