Patents Assigned to Office of Technology Commercialization University of Maryland
  • Apparatus and method to distinguish nominally identical objects through wave fingerprints Apparatus and method to distinguish nominally identical objects through wave fingerprints
    Publication number: 20100001743
    Abstract: The present invention exploits extreme sensitivity to initial conditions in ray-chaotic enclosures to create a method to distinguish nominally identical objects through their unique “wave fingerprints.” The fingerprint can be measured through transmission of a pulsed microwave signal as a function of carrier frequency and time. When internal components are re-arranged, the Electromagnetic Fingerprints (EMF) changes in significant ways. The EMF can be detected by direct injection measurements of the enclosure or through remote measurement.
    Type: Application
    Filed: February 15, 2008
    Publication date: January 7, 2010
    Applicant: Office of Technology Commercialization University of Maryland
    Inventors: Sameer Hemmady, Steven M. Anlage