Patent ID: 6094632
Filing Date: 2000-07-25
Classification: G10L

Abstract:
A speaker recognition device for judging whether or not an unknown speaker is an authentic registered speaker, wherein the speaker recognition device includes a digital processor programmed to:1) instruct the unknown speaker to input an ID of the unknown speaker and utter a specified text designated by the speaker recognition device and a password of the unknown speaker,2) input the ID and the utterance of the specified text and the password from the unknown speaker, and3) determine that the unknown speaker is the authentic registered, speaker if each of the following conditions are satisfied:a. the specified text uttered by the unknown speaker is the same as the specified text designated by the speaker recognition device: andb. the degree of similarity between acoustic features of the password uttered by the unknown speaker and acoustic features of the password uttered by the authentic registered speaker who corresponds to the inputted ID is larger than a predetermined threshold value; andwherein the specified text is independent of stored acoustic features of the authentic registered speaker.