Patent Document ID: 4053710
Application ID: 05662994
Patent Status: 1

Claim One:
1. The method of verifying the identity of a person by the use of utterance comparisons comprising the steps of: a. computing an utterance vector from samples of the person's speech; b. computing an utterance vector from samples of an imposter's speech; c. analyzing the computed utterance vector of the person and the computed utterance vector of the imposter for deriving weighting factors indicative of the differences therebetween; d. recording the person's computed utterance vector and said weighting factors on a security card that is issued to said person; e. comparing the utterance vector recorded on said security card against a most recent computed utterance vector from the person for determining the differences therebetween; f. comparing the differences determined in step (e) with said recorded weighting factors and verifying the identity of said person if the comparison is within a first range and rejecting the identity of said person if the comparison is within a second range.