Nuance Communications, Inc.

Julia A Parker

Brien H Muschett

The present invention discloses a system and a method for authenticating a user based upon a spoken password processed though a standard speech recognition engine lacking specialized speaker identification and verification (SIV) capabilities. It should be noted that the standard speech recognition grammar can be capable of acoustically generating speech recognition grammars in accordance with the cross referenced application indicated herein. The invention can prompt a user for a free-form password and can receive a user utterance in response. The utterance can be processed through a speech recognition engine (e.g., during a grammar enrollment operation) to generate an acoustic baseform. Future user utterances can be matched against the acoustic baseform. Results from the future matches can be used to determine whether to grant the user access to a secure resource.

Spoken free-form passwords for light-weight speaker verification using standard speech recognition engines

A system and method for navigating a dialog hierarchy from a voice user interface (VUI) using speech bookmarks. The method can detect a user spoken command for bookmarking a location within a dialog hierarchy of a voice response system. A user spoken bookmark can be received, which is added to a personalized bookmark grammar that is associated with a user who spoke the bookmark name. A database record can be used to associate the new bookmark name with a location within the dialog hierarchy. During a subsequent interaction between the user and the voice response system, the user can speak the bookmark name, which results in a match being detected between the spoken phrase and the personalized bookmark grammar. The voice response system can then navigate to the location within bookmark hierarchy that is associated with the speech bookmark.

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Boca Raton, FL, United States of America

Julia A Parker