Patent ID: 6978238
Filing Date: 2005-12-20
Classification: G10L

Abstract:
1. A method of obtaining a user's identity by voice, comprising: receiving a set of at least one known grammar and a set of at least one known voiceprint corresponding to a plurality of utterances from each of a first plurality of users; for each of the first plurality of users, associating the set of at least one known grammar and the set of at least one known voiceprint with an identifier of said user; receiving at least one utterance from a subject user; performing a voice recognition on at least one of the at least one utterance received from the subject user, said voice recognition being different from extracting a grammar from a first at least one of the at least one utterance received from the subject user; responsive to the voice recognition technique, selecting from the first plurality of users a second plurality of users, smaller than the first plurality of users by a factor of at least ten, for which the first voice recognition most closely matches at least one selected from the set of at least one grammar and the set of at least one voiceprint associated with the identifiers of the second plurality of users; from the second plurality of users, selecting the user for which a grammar of the first at least one of the at least one utterance received from the subject user most closely matches at least one of the set of at least one grammar associated with the identifiers of the second plurality of users; verifying a voiceprint of at least one of the at least one utterance has at least a similarity to the set of at least one voiceprint of the selected user; and responsive to the verifying step, providing the identifier of the selected user as the identifier of the subject user.