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Speaker verification method

  • US 6,556,127 B1
  • Filed: 04/13/1999
  • Issued: 04/29/2003
  • Est. Priority Date: 10/15/1996
  • Status: Expired due to Term
First Claim
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1. Method for enabling a user of a system to obtain access to one or more services, comprising:

  • prompting the user to identify himself with a subscriber code;

    provided that said subscriber code is registered and a voice reference has been assigned to said subscriber code, verifying the subscriber'"'"'s identity by comparing the user'"'"'s voice to said voice reference associated with the subscriber code entered by the user, access to the requested services being given if the user'"'"'s voice matches said voice reference;

    wherein the following are undertaken during an initial phase when no voice references are yet associated with the subscriber code entered by the user, or when the voice reference associated with the subscriber code entered by the user is not yet sufficiently good to verify the subscriber'"'"'s identity with a predetermined degree of reliability;

    prompting said user to enter a PIN code;

    comparing said PIN code entered by the user with a PIN code associated with the subscriber code entered by the user, if the PIN code entered by the user matches the PIN code associated with the subscriber code entered by the user, giving the user access to the requested services, creating a new voice reference and associating said new voice reference with said subscriber code, or provided that a voice reference is already associated with the said subscriber code, improving said voice reference by said new voice reference.

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