×

Radio frequency certificates of authenticity

  • US 20070005367A1
  • Filed: 06/29/2005
  • Published: 01/04/2007
  • Est. Priority Date: 06/29/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method, comprising:

  • embedding a scattering agent in a fixative, wherein the embedded scattering agent is fixed in a unique 3-dimensional physical arrangement that reflects, refracts, scatters, reradiates, and induces radio frequency energy;

    attaching the scattering agent to a physical object;

    reading the embedded scattering agent, wherein the reading includes;

    exposing the scattering agent to radio frequency energy, receiving reflected and refracted radio frequency energy from the scattering agent, and deriving a digital fingerprint of the unique physical arrangement from the reflected and refracted radio frequency energy;

    combining the digital fingerprint with information associated with the physical object; and

    using the digital fingerprint to authenticate the information associated with the physical object.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×