Patent ID: 8600751
Filing Date: 2013-12-03
Classification: G06F,G10L

Abstract:
1. Digital method for authentication of a person by comparison of a current voice profile with a previously stored initial voice profile, comprising: receiving speech from the person speaking into the system so as to provide at least one input speech sample to determine a relevant voice profile, conducting the input speech sample to a voice-profile calculation unit and thereby, on the basis of a predetermined voice-profile algorithm, calculating the current voice profile and determining at least one of an overall size of the speech sample or parameters of its evaluation that are necessary to authenticate the speaker dynamically and automatically while the input speech sample is being spoken into the system based on an evaluation of a first partial speech sample relative to a pre-specified security level, in order to establish the relevant voice profile, wherein as a parameter of the evaluation a weighting factor of at least one of the first partial speech sample or subsequent partial speech samples is established for determination of the associated voice profile, and the weighting factor for the first partial speech sample is set to zero, such that the determination of the voice profile in each case is started anew, and wherein a control signal is output to a user-guidance control unit based upon the comparison of an initially produced voice profile with a current voice profile.