A method and system used to integrate and control multiple secure credentialing approaches including magnetic stripes, bar codes, contact and contactless SmartCard chips, Short Message Systems (SMS), Global Positioning Systems (GPS), vicinity type Radio Frequency Identification Devices (RFID), and proximity...http://www.google.com/patents/US7715593?utm_source=gb-gplus-sharePatent US7715593 - Method and system for creating and operating biometrically enabled multi-purpose credential management devices
