In a system (e.g., debit card) where a PIN is entered as verification, the PIN and biometric information, which is free of being stolen or faked, are combined to realize secure user verification. The leakage and the theft of a PIN is reliably prevented, thereby realizing a high security ability. To-be-verified...http://www.google.com/patents/US20030005310?utm_source=gb-gplus-sharePatent US20030005310 - User verification system, and portable electronic device with user verification function utilizing biometric information
