METHOD FOR PREVENTING UNAUTHORIZED DIVERSION OF NFC TAGS

• US 20170323124A1
• Filed: 07/26/2017
• Published: 11/09/2017
• Est. Priority Date: 09/10/2012
• Status: Active Grant

• Current Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Original Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Inventors: FORSTER, Ian J., FARR, Adrian N.
• Granted Patent: US 10,282,572 B2
• Time in Patent Office: Days
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 7/10257 arrangements for protecting the interrogation against piracy attacks computer security in general G06F21/00; jamming of communication, countermeasures H04K3/00; secret communication H04K1/00

Abstract

A method, system and apparatus for pairing authorized NFC enabled RFID devices with an intended object or product. The method, system and apparatus can include a primary RFID with a radio frequency identification chip, a coil antenna, a bridge and a substrate; an association of the at least primary RFID device with an object; an integration of a material into one of the at least primary RFID device and the object that provides the RFID device with a predetermined resonant frequency; and the detuning of one or more secondary communication devices located proximate the RFID device.

Claims

1. A system for blocking unauthorized radio frequency communication comprising:

a NFC enabled RFID device;

an object to which the RFID device is associated; and

a substrate provided with the RFID device and the object wherein the substrate includes at least one of a high dielectric material, a high permeability material, a resonant inductive circuit, and a conductive region.

2. The system of claim 1, wherein the device has an interrogation range of two inches or less.

3. The system of claim 1, wherein the device has a resonant loaded frequency near the operational frequency

4. The system of claim 1, wherein the object is a poster having a touchpoint or NFC communication area.

5. The system of claim 1, wherein the high dielectric material is a ceramic material.

6. The system of claim 1, wherein the substrate facilitates a change in the RFID device through a coupling of two inductors together.

7. The system of claim 1, wherein an unauthorized RFID tag designed for a benign substrate will have its performance impaired or incapacitated by the substrate.

8. The system of claim 1, wherein the substrate includes a ferrite material.

9. The system of claim 1, wherein the RFID device comprises an antenna and a conductive region is added as part of the antenna.

10. The system of claim 1, wherein the RFID device is a special “

keyed”

or authorized RFID device which functions on the substrate.

11. A NFC enabled RFID device comprising:

a substrate formed with a load compensator;

a RFID chip coupled to the substrate; and

an antenna formed on the substrate.

12. The device of claim 11, wherein the substrate comprises ferrite material.

13. The device of claim 11, wherein the device incorporates a conductive region as the load compensator.

14. The device of claim 11, wherein the antenna is a coil antenna

15. The device of claim 11, wherein the interrogation range for the device is 2 inches.

16. The device of claim 11, wherein the substrate is a dielectric substrate.

17. The device of claim 11, wherein the device is placed on a poster.

18. A NFC enabled RFID device comprising:

a substrate;

a RFID chip;

an antenna coil formed on the substrate having a conductive region which causes a decrease in an inductance of the antenna coil; and

the NFC enabled RFID device is placed on a poster such that when an unauthorized tag is placed over the NFC enabled RFID device it is detuned.

19. The device of claim 18, wherein the substrate is a high dielectric substrate.