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Apparatus and method for authenticating user according to biometric information

  • US 7,007,298 B1
  • Filed: 01/27/2000
  • Issued: 02/28/2006
  • Est. Priority Date: 03/12/1999
  • Status: Expired due to Fees
First Claim
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1. An authentication apparatus, comprising:

  • a biometric information input unit inputting biometric information;

    an extraction unit extracting biometric feature information from the input biometric information;

    an estimation unit estimating matching precision of the extracted biometric feature information;

    a request unit requesting an input of additional authentication information different from the input biometric information when said estimation unit estimates that a predetermined matching precision cannot be obtained;

    an authentication unit information input unit inputting the authentication information;

    a biometric feature information registration unit preliminarily storing registered biometric feature information;

    an authentication information registration unit preliminarily storing additional registered authentication information;

    a biometric feature information matching check unit having a matching check between the extracted biometric feature information and the registered biometric feature information;

    an authentication information matching check unit having a matching check between the input authentication information and the registered authentication information; and

    a determination unit computing matching precision by combining a matching check result about biometric feature information with a matching check result about additional authentication information, and determining based on a computation result whether or not a user is authenticated.

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