Abstract: Method for controlling user access to a service available in a data network and/or to information stored in a user database, in order to protect stored user data from unauthorized access, such that the method comprises the following: input of a user's speech sample to a user data terminal, processing of the user's speech sample in order to obtain a prepared speech sample as well as a current voice profile of the user, comparison of the current voice profile with an initial voice profile stored in an authorization database, and output of an access-control signal to either permit or refuse access, taking into account the result of the comparison step, such that the comparison step includes a quantitative similarity evaluation of the current and the stored voice profiles as well as a threshold-value discrimination of a similarity measure thereby derived, and an access-control signal that initiates permission of access is generated only if a prespecified similarity measure is not exceeded.

Abstract: Digital method for authentication of a person by comparing a current voice profile with a previously stored initial voice profile, wherein to determine the relevant voice profile the person speaks at least one speech sample into the system, this speech sample is conveyed to a voice-profile calculation unit and thereby, on the basis of a prespecified voice-profile algorithm, the voice profile is calculated, such that the overall size of the speech sample and/or parameters of its evaluation to determine the relevant voice profile are established dynamically and automatically as the sample is spoken, in response to the result of an evaluation of a first partial speech sample.

Abstract: Digital method for authentication of a person by comparing a current voice profile with a previously stored initial voice profile, wherein to determine the relevant voice profile the person speaks at least one speech sample into the system, this speech sample is conveyed to a voice-profile calculation unit and thereby, on the basis of a prespecified voice-profile algorithm, the voice profile is calculated, such that the overall size of the speech sample and/or parameters of its evaluation to determine the relevant voice profile are established dynamically and automatically as the sample is spoken, in response to the result of an evaluation of a first partial speech sample.

Abstract: Example embodiments provide a speaker authentication technology that compensates for mismatches between enrollment process conditions and test process conditions using correction parameters or correction models, which allow for correcting one of the test voice characterizing parameter set and the enrollment voice characterizing parameter set according to a mismatch between the test process conditions and the enrollment process conditions, thereby obtaining values for the test voice characterizing parameter set and the enrollment voice characterizing parameter set that are based on the same or at least similar process conditions. Alternatively, each of the enrollment and test voice characterizing parameter sets may be normalized to predetermined standard process conditions by using the correction parameters or correction models.

Abstract: Method for controlling user access to a service available in a data network and/or to information stored in a user database, in order to protect stored user data from unauthorized access, such that the method comprises the following: input of a user's speech sample to a user data terminal, processing of the user's speech sample in order to obtain a prepared speech sample as well as a current voice profile of the user, comparison of the current voice profile with an initial voice profile stored in an authorization database, and output of an access-control signal to either permit or refuse access, taking into account the result of the comparison step, such that the comparison step includes a quantitative similarity evaluation of the current and the stored voice profiles as well as a threshold-value discrimination of a similarity measure thereby derived, and an access-control signal that initiates permission of access is generated only if a prespecified similarity measure is not exceeded.

Abstract: A process for authenticating a user to control remote access to a service, data base or data network is provided, in which during an enrolment step, an initial voice sample provided by the user is analyzed to obtain an initial user-specific voice profile and, in a later verification step, a current voice sample of the user is analyzed and compared to the initial voice profile to generate an access control signal. An additional user-dedicated authentication is generated in a pre-enrolment period, and the additional authentication is used to authenticate the user in the enrolment step and/or in an access control step prior to and independent on the enrolment step, in a provisional or supplementary authentication procedure.

Abstract: A virtual credit card, as a set of data, free of a physical substrate, the data being adapted to authorize a person who is in possession thereof to pay for a product or service, in particular in the framework of an online transaction, the data set being produced on the basis of a credit card account or a pre-payment and in response to a user authentication procedure involving an evaluation of biometric features of a user, in particular of his/her voice profile, and being available at a telecommunication terminal, in particular a mobile phone, of the authenticated user.

Abstract: Digital process for authentication of a user of a database for access to protected data or a service reserved for a defined circle of users or for the use of data currently entered by the user, wherein a voice sample currently enunciated during an access attempt by the user is routed to a voice analysis unit and, herein, a current voice profile is computed and this is compared in a voice profile comparison unit against a previously stored initial voice profile and, in response to a positive comparison result, the user is authenticated and a first control signal enabling access, but in response to a negative comparison result a second control signal disabling access or triggering a substitute authentication procedure is generated.

Abstract: Example embodiments provide techniques to compensate for effects which arise from the usage of different compression techniques. A database is provided which stores a mean error signal for each of different compression techniques which may have been applied to a source signal. When an input signal stemming from a certain source signal and coded according to a certain compression technique is received, the certain compression technique is identified and an input pattern signal is determined from the received coded input signal. Then, the stored mean error signal of the recognized compression technique is added to the determined input pattern signal, thereby obtaining an enhanced input pattern signal. This abstract is provided to comply with rules requiring an abstract, and it is submitted with the intention that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: Example embodiments provide a speaker authentication technology that compensates for mismatches between enrollment process conditions and test process conditions using correction parameters or correction models, which allow for correcting one of the test voice characterizing parameter set and the enrollment voice characterizing parameter set according to a mismatch between the test process conditions and the enrollment process conditions, thereby obtaining values for the test voice characterizing parameter set and the enrollment voice characterizing parameter set that are based on the same or at least similar process conditions. Alternatively, each of the enrollment and test voice characterizing parameter sets may be normalized to predetermined standard process conditions by using the correction parameters or correction models.

Abstract: The invention relates to a method and system for authorizing a commercial transaction between a customer and a goods or service provider via an authorization service provider with authentication of the customer by comparing a biometric sample of the customer with a biometric model of the customer stored with the authorization service provider. The telephone link between the supplier and the authorization service provider is set up via a router which associates the real telephone number of the authorization service provider and the telephone number of the supplier with a virtual telephone number and transmits a code which is isochronously calculated by the router and the authorization provider with the aid of the same algorithm.