Secure transaction card for execution of transactions by an authorized user. The secure transaction card has a biometric sensor, a battery, data transmission means, a microprocessor, a data storage device, and a security circuit. The microprocessor compares the scanned biometric feature with biometric...http://www.google.es/patents/US20080120509?utm_source=gb-gplus-sharePatente US20080120509 - Biometrics-secured transaction card
