US Patent 8706634 Methods and systems for biometric verification

Methods, systems and apparatus for verifying a cardholder during a transaction involving a payment device and a terminal are provided. In some embodiments, the payment device transmits a first biometric information template to a terminal, receives a first sample template, determines that a match occurs between the first sample template and a first biometric reference template, and determines that a verification sequence applies to the transaction requiring satisfaction of a second biometric rule. In an implementation, the payment device then transmits a second biometric information template, receives a second sample template, determines that a match occurs between the second sample template and a second biometric reference template, and transmits a verification status of the cardholder.