Abstract: 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.

Abstract: 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.

Abstract: A system for, and method of, extending the battery life of a mobile device providing content wirelessly and a mobile device incorporating the system or the method. In one embodiment, the system includes: (1) a power manager operable to generate a signal indicating that a low battery condition exists and (2) an audio/video subsystem operable to receive the signal and adjust at least one parameter controlling an encoding of the content to decrease a quality of the encoding.

Abstract: A method for encoding audio comprises receiving an unencoded audio signal and monitoring a user interface for user interface events. The method continues by selecting one of a plurality of transform windows to hold a defined quantity of audio samples based upon a detected one or more user interface interaction events and associated transient information. The plurality of transform windows comprises a long window sequence comprising a single window with a first quantity of samples, and a short window sequence comprising a plurality of second windows each comprising a second quantity of samples. A sum of samples of the plurality of second windows equals the first plurality of samples. The short window sequence is selected when a particular user interface interaction event is received from the user interface.