Patent ID: 9640013
Date: 2017-05-02
CPC Classifications: G06Q,G07F,G07G

Claim:
1. A passive RFID tag comprising: at least one antenna; a first memory location storing a first identifier; a second memory location storing a second identifier, the tag being configured to receive a first identification query, the tag being configured to respond to the first identification query with the first identifier, the tag being configured to receive a reveal code and to compare the reveal code to a predetermined code to determine whether the reveal code is valid; and the tag being configured to receive a second identification query and to respond to the second identification query with the second identifier, if the reveal code is valid, wherein the reveal code includes a command instructing the tag to respond to the second identification query with the second identifier that comprises more information about an item associated with the tag than the first identifier, wherein the second identification query is received at a time that is later than a time of the first identification query, wherein access to the first identifier is permanently disabled after receipt of the reveal code and wherein the at least one antenna and the first memory location and the second memory location are coupled to a controller in the RFID tag.