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Physical presence digital authentication system

  • US 8,843,057 B2
  • Filed: 02/10/2014
  • Issued: 09/23/2014
  • Est. Priority Date: 09/16/1998
  • Status: Expired due to Fees
First Claim
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1. A method for computer-implemented authenticating of a sound clip, comprising:

  • receiving a sound clip from a source;

    dividing the sound clip into time slices;

    performing a feature calculation on at least some of the time slices;

    comparing each calculated feature with calculated features obtained from a database to determine a match;

    determining a number of matches from said comparing; and

    if the determined number of matches exceeds a predetermined threshold, authenticating the sound clip.

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