A method for real-time speaker recognition including obtaining speech data of a speaker, extracting, using a processor of a computer, a coarse feature of the speaker from the speech data, identifying the speaker as belonging to a pre-determined speaker cluster based on the coarse feature of the speaker,...http://www.google.com/patents/US8160877?utm_source=gb-gplus-sharePatent US8160877 - Hierarchical real-time speaker recognition for biometric VoIP verification and targeting
