A radio operated data card whose outer jacket forms a sealed protected housing for internal electrical components, including an RFID integrated circuit which incorporates data storage and a radio frequency transceiver, and one or more on-card antenna structures. Manually operated electrical switching...http://www.google.fr/patents/US20040124248?utm_source=gb-gplus-shareBrevet US20040124248 - Methods and apparatus for wireless RFID cardholder signature and data entry
Methods and apparatus for wireless RFID cardholder signature and data entry
Numéro de demande: 10/646,597 Numéro de publication: US 2004/0124248 A1 Date de dépôt: 23 août 2003 Brevet délivré: US7100835 ( Date de délivrance 5 sept. 2006)
