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Biometric identification system using pulse waveform

  • US 8,773,239 B2
  • Filed: 04/04/2011
  • Issued: 07/08/2014
  • Est. Priority Date: 04/04/2011
  • Status: Active Grant
First Claim
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1. A method for biometric identity confirmation of a subject having a pulse, said method comprising:

  • initially acquiring and analyzing pulse waveform data for a known subject to generate subject characterization data identifying the known subject, wherein the subject characterization data is a probability density in a phase space in which a first quasi-periodic variable based on the pulse waveform is correlated with at least a second quasi-periodic variable based on the pulse waveform; and

    during a subsequent operational mode, acquiring and analyzing pulse waveform data for a test subject to confirm whether the identity of the test subject matches the known subject based on the probability values associated with the pulse waveform data for the test subject.

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