Patent ID: 6980087

Claim:
A method of determining access rights of a user of a reusable mobile electronic tag, the electronic tag containing a plurality of memory locations capable of storing information, wherein at least a subset of said plurality of memory locations are able to store user-supplied information, said subset of memory locations operable in a first operational mode or in a second operational mode, and wherein for said subset of memory locations user access can be of two forms, a first access form and a second access form, wherein the reusable mobile electronic tag determines the first or second access form of the user, comprising the steps of: storing an identification password in said electronic tag; allowing the user to present a password to the electronic tag; comparing within the electronic tag the password presented by the user to the identification password stored in the electronic tag; if the password presented by the user matches the identification password, then granting the user with said second access form, otherwise granting the user with said first access form; and allowing the user to access the subset of memory locations within the electronic tag to an extent enabled by said first or second access form granted to said user, so that when the memory locations are in the first operational mode the user is granted said first access form and when the memory locations are in the second operational mode the user is granted said second access form, wherein when the user is granted with said first access form, the user is allowed to cause only the memory locations in the first operational mode to store information supplied by the user and to cause said memory locations to change from the first operational mode to the second operational mode after said storing.