Cirrus Logic Inc.

Cirrus Logic International Semiconductor Limited

Ryan Roberts

Michael Page

Carlos Vaquero Avilés-Casco

David Martínez González

Nikesh Oswal

A method of speaker authentication comprises: receiving a speech signal; dividing the speech signal into segments; and, following each segment, obtaining an authentication score based on said segment and previously received segments, wherein the authentication score represents a probability that the speech signal comes from a specific registered speaker. In response to an authentication request, an authentication result is output based on the authentication score.

Voice user interface

An authentication system, comprising: one or more inputs, for receiving biometric input signals from a user; a routing module, configured to selectively route the biometric input signals from the one or more inputs to one or more of a plurality of components, the plurality of components including a biometric authentication module, for processing the biometric input signals and generating an authentication result; and a security module, for receiving a control instruction for the routing module, determining whether or not the control instruction complies with one or more rules, and controlling the routing module based on the control instruction responsive to a determination that the control instruction complies with the one or more rules.

Methods and apparatus for authentication in an electronic device

Embodiments of the invention provide methods and apparatus for monitoring the routing configuration within an electronic device such that a biometric authentication process can be carried out without interference from other components of the device, such as may occur when the device has become infected with malware for example. The invention may provide a codec or speaker recognition processor, coupled to receive biometric input data, comprising a security module that determines whether a routing configuration complies with one or more rules. The security module may be implemented to prevent genuine biometric data from being output from the speaker recognition processor, and/or to prevent spoof biometric data from being inserted into the authentication module.

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Hertfordshire, United Kingdom

Ryan Roberts