A portable, biometrically-secured device for facilitating various different types of in-person and online transactions. For example, the portable, biometrically-secured device can be used to safely perform in-person financial transactions, such as credit card transactions, in which the user's identity...http://www.google.fr/patents/US7780080?utm_source=gb-gplus-shareBrevet US7780080 - Portable device and methods for performing secure transactions
Portable device and methods for performing secure transactions