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Metabolism- or Biochemical-Based Anti-Spoofing Biometrics Devices, Systems, and Methods

  • US 20080226137A1
  • Filed: 03/14/2008
  • Published: 09/18/2008
  • Est. Priority Date: 03/14/2007
  • Status: Abandoned Application
First Claim
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1. A metabolism-sensitive or biochemical-level-sensitive device comprising:

  • an electromagnetic source for radiating a target region with electromagnetic radiation, said radiation selected to be absorbed by selected metabolites or biochemical components;

    a sensor configured to detect radiation backscattered or reemitted from said target region onto said sensor wherein said detected radiation preserves a signal related to said absorbance by said metabolites or biochemical components; and

    a calculation unit configured to generate, based upon said detected radiation, an output signal that is a function of the degree, presence, or absence of living or biological tissue within said target region.

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