Patents by Inventor Cheryl Ham

Cheryl Ham 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).

  • Real time gamma-ray signature identifier
    Patent number: 8180579
    Abstract: A real time gamma-ray signature/source identification method and system using principal components analysis (PCA) for transforming and substantially reducing one or more comprehensive spectral libraries of nuclear materials types and configurations into a corresponding concise representation/signature(s) representing and indexing each individual predetermined spectrum in principal component (PC) space, wherein an unknown gamma-ray signature may be compared against the representative signature to find a match or at least characterize the unknown signature from among all the entries in the library with a single regression or simple projection into the PC space, so as to substantially reduce processing time and computing resources and enable real-time characterization and/or identification.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: May 15, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Mark Rowland, Tom B. Gosnell, Cheryl Ham, Dwight Perkins, James Wong
  • Real time gamma-ray signature identifier
    Publication number: 20070108379
    Abstract: A real time gamma-ray signature/source identification method and system using principal components analysis (PCA) for transforming and substantially reducing one or more comprehensive spectral libraries of nuclear materials types and configurations into a corresponding concise representation/signature(s) representing and indexing each individual predetermined spectrum in principal component (PC) space, wherein an unknown gamma-ray signature may be compared against the representative signature to find a match or at least characterize the unknown signature from among all the entries in the library with a single regression or simple projection into the PC space, so as to substantially reduce processing time and computing resources and enable real-time characterization and/or identification.
    Type: Application
    Filed: March 27, 2006
    Publication date: May 17, 2007
    Inventors: Mark Rowland, Tom Gosnell, Cheryl Ham, Dwight Perkins, James Wong