Patent ID: 6554188
Filing Date: 2003-04-29
Classification: A01K,G06Q,G07C,G07F

Abstract:
For an active labeling system employing wireless-powered identification tags, a terminal including: data processing means, program control means, data storage means and optionally a display and user control means; the terminal having wireless communication means capable of reading from of writing to a wireless-powered identification tag; and the identification tag including tag data storage means capable of storing more than one field of data within a record, characterised in that the terminal is capable ofa) acquiring data comprising a code sequence from an unprotected key area of data storage within a wireless-powered identification tag, and b) if at least a part of the code sequence is recognised by the terminal as belonging to a set of predetermined security key sequences, then adopting a security rank selected in accordance with the key sequence from a range of predetermined security ranks; the adopted security rank empowering the terminal to become capable of effective access to a predetermined set of one or more protected tag fields of data within the wireless-powered identification tag, so that the same terminal may serve different users at different times under different security ranks.