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1. (WO2018083495) METHODS AND APPARATUS FOR BIOMETRIC AUTHENTICATION IN AN ELECTRONIC DEVICE

Pub. No.:    WO/2018/083495    International Application No.:    PCT/GB2017/053329
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Tue Nov 07 00:59:59 CET 2017
IPC: G10L 17/22
G06F 21/32
G10L 15/26
Applicants: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LIMITED
Inventors: PAGE, Michael
ROBERTS, Ryan
Title: METHODS AND APPARATUS FOR BIOMETRIC AUTHENTICATION IN AN ELECTRONIC DEVICE
Abstract:
Embodiments of the disclosure provide methods and apparatus in which a biometric authentication score generated as the result of a biometric authentication algorithm is compared to a threshold value that can be dynamically varied as required to provide a variable level of security. For example, the threshold value may be varied in dependence on the semantic content of a voice signal, and/or the context in which the voice signal was acquired. Authentication of the signal may be initiated in parallel with speech recognition, such that the appropriate threshold value is only determined after authentication has already begun.