Biometric processes
AssigneeCirrus Logic International Semiconductor Ltd.
InventorJohn Paul LESSO
Life of this patent
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Abstract
The present disclosure provides methods, systems, devices and computer program products for authenticating a user based on a comparison of audio signals to a stored voice model for an authorised user. In one aspect, a method comprises: obtaining a first audio signal that comprises a representation of a bone-conducted signal, wherein the bone-conducted signal is conducted via at least part of the user's skeleton; obtaining a second audio signal that comprises a representation of an air-conducted signal; and, responsive to a determination that the first audio signal comprises a voice signal, enabling updates to the stored voice model for the authorised user based on the second audio signal.
Claims27
A method in a biometric authentication system, the biometric authentication system for authenticating a user based on a comparison of audio signals to a stored voice model for an authorised user, the method comprising:
- obtaining a first audio signal that comprises a representation of a bone-conducted signal, wherein the bone-conducted signal is conducted via at least part of the user's skeleton;
- obtaining a second audio signal that comprises a representation of an air-conducted signal;
- and
- responsive to a determination that the first audio signal comprises a voice signal, enabling updates to the stored voice model for the authorised user based on the second audio signal.
A biometric authentication system for authenticating a user based on a comparison of audio signals to a stored voice model for an authenticated user, the biometric authentication system comprising:
- a first input for obtaining a first audio signal, the first audio signal comprising a representation of a bone-conducted signal, wherein the bone-conducted signal is conducted via at least part of the user's skeleton;
- a second input for obtaining a second audio signal, the second audio signal comprising a representation of an air-conducted signal;
- and
- an enablement module operable to determine whether the first audio signal comprises a voice signal and to enable updates to the stored voice model for the authorised user based on the second audio signal, responsive to a determination that the first audio signal comprises a voice signal.
An electronic apparatus, for authenticating a user based on a comparison of audio signals to a stored voice model for an authenticated user, the electronic apparatus comprising processing circuitry and a non-transitory machine-readable medium storing instructions which, when executed by the processing circuitry, cause the electronic apparatus to:
- obtain a first audio signal that comprises a representation of a bone-conducted signal, wherein the bone-conducted signal is conducted via at least part of the user's skeleton;
- obtain a second audio signal that comprises a representation of an air-conducted signal;
- and
- responsive to a determination that the first audio signal comprises a voice signal, enable updates to the stored voice model for the authorised user based on the second audio signal.
A non-transitory machine-readable medium for authenticating a user based on a comparison of audio signals to a stored voice model for an authenticated user, the medium storing instructions which, when executed by processing circuitry, cause an electronic apparatus to:
- obtain a first audio signal that comprises a representation of a bone-conducted signal, wherein the bone-conducted signal is conducted via at least part of the user's skeleton;
- obtain a second audio signal that comprises a representation of an air-conducted signal;
- and
- responsive to a determination that the first audio signal comprises a voice signal, enable updates to the stored voice model for the authorised user based on the second audio signal.
Dependencies are inferred from the claim text.