A tokenless identification system and method for authorization of transactions and transmissions is described. The tokenless system and method are principally based on a correlative comparison of a unique biometrics sample, such as a finger print or voice recording, gathered directly from...http://www.google.es/patents/US5838812?utm_source=gb-gplus-sharePatente US5838812 - Tokenless biometric transaction authorization system
Tokenless biometric transaction authorization system