Patent ID: 7647499

Claim:
A method for identifying valid possession of an item, comprising: attaching a radio frequency identification device to the item; obtaining encryption information defining an individual who can possess the item; generating an encrypted code from the encryption information by a programmer; inserting the encrypted code into the radio frequency identification device by the programmer whereas the encrypted code may be one of a plurality of encrypted codes; detecting a presence of the item by detection of the radio frequency identification device by a security reader; accessing by the security reader the encryption information from a personal identification radio frequency identification device carried by the individual and generating another encrypted code by the security reader using the obtained encryption information; attempting to access the radio frequency identification device by the security reader by transmission of the other encrypted code to the radio frequency identification device; responding with a correct access signal by the radio frequency identification device in response to receipt of the other encrypted code if the other encrypted code is same as the inserted encrypted code; and displaying a valid possession indication by the security reader upon receiving a correct address signal from the radio frequency identification device.