An electronic security system uses a set of predefined RFID tags. Each tag is associated with, and attached to, an article or packaging for an article. Each tag includes unique tag information which is logged into a computerized database that contains a record for each of the tags in the set. A detection...http://www.google.com/patents/US6025780?utm_source=gb-gplus-sharePatent US6025780 - RFID tags which are virtually activated and/or deactivated and apparatus and methods of using same in an electronic security system
