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Method and system for non-intrusive speaker verification using behavior models

  • US 6,490,560 B1
  • Filed: 03/01/2000
  • Issued: 12/03/2002
  • Est. Priority Date: 03/01/2000
  • Status: Expired due to Term
First Claim
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1. A system for verifying user identity comprising:

  • a conversational system for receiving inputs from a user and transforming the inputs into formal commands;

    a behavior verifier coupled to the conversational system for extracting features from the inputs, the features including behavior patterns of the user, the behavior verifier including a probability calculator, the probability calculator being adapted to calculate a first probability that the user is authorized to interact with the system based on the user'"'"'s behavior;

    an acoustic and biometric verifier for determining acoustic and biometric information from the user and determining a second probability that the user is authorized to interact with the system based on the user'"'"'s acoustic or biometric information; and

    the behavior verifier including a probability mixer adapted for integrating the first probability with the second probability to verify that the user is authorized to interact with the system.

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