A method and apparatus for tracking items automatically is described. A passive RFID (Radio Frequency IDentification) tag is used with a material tracking system capable of real-time pinpoint location and identification of thousands of items in production and storage areas. Passive RFID tags are attached...http://www.google.fr/patents/US20020196146?utm_source=gb-gplus-shareBrevet US20020196146 - RFID material tracking method and apparatus
Numéro de demande: 10/229,654 Numéro de publication: US 2002/0196146 A1 Date de dépôt: 28 août 2002 Brevet délivré: US6956538 ( Date de délivrance 18 oct. 2005)