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Multimodal Authorization Method, System And Device

  • US 20060260988A1
  • Filed: 05/26/2006
  • Published: 11/23/2006
  • Est. Priority Date: 01/14/2005
  • Status: Active Grant
First Claim
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1. A method of authorizing a transaction, comprising:

  • enrolling at least two biometric specimens, a first one of the specimens being a first type, and a second one of the specimens being a second type;

    determining a false acceptance ratio (“

    FAR”

    ) for each of the specimens;

    identifying authorization options, each option requiring a match to one or more of the biometric specimens;

    calculating a cost value for at least one of the options to provide a calculated cost value (“

    CCV”

    ), wherein the CCV is a function of the FAR(s) of the specimen(s) corresponding to the option;

    identifying an acceptable cost value range (“

    ACV range”

    );

    comparing the CCV to the ACV range;

    determining whether the CCV is in the ACV range;

    selecting the option if the CCV is in the ACV range;

    providing a set of biometric sample(s) (the “

    sample set”

    ), the sample set having biometric sample(s) of the same type(s) as those corresponding to the selected option;

    comparing the biometric sample(s) to the biometric specimen(s);

    determining whether the biometric sample(s) match the biometric specimen(s);

    if the biometric sample(s) match the biometric specimen(s), then authorizing the transaction.

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