Patent ID: 8139723
Filing Date: 2012-03-20
Classification: G07C,G10L,H04L,H04M

Abstract:
1. A voice authentication system using a removable voice ID card, comprising: a voiceprint database of a server for storing voiceprints of all authorized users; a voiceprint updating means of the server for updating each voiceprint of the voiceprints, wherein each voiceprint is updated in said voiceprint database; a voiceprint digest generator of the server for generating a first voiceprint digest according to a request from a client; a means for generating a second voiceprint digest in the voice ID card of the client; the voice ID card for storing a voiceprint of an authorized user; a validation means of the client for validating the voiceprint in the voice ID card on the basis of the first voiceprint digest from the server; an audio device of the client for performing voice interaction with the authorized user; and a voice authentication means of the client for determining whether the voiceprint from said voice ID card belongs to the authorized user after matching the first voiceprint digest with the second voiceprint digest.