# US 2017/0323124 A1 · Method for preventing unauthorized diversion of nfc tags

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- Number: US 2017/0323124 A1
- Document ID: US20170323124A1
- Status: Published application
- Kind: A1
- Application number: 15/659,941
- Filed: 2017-07-26
- Published: 2017-11-09
- Earliest claimed: 2012-09-10
- Assignees: Avery Dennison Retail Information Services LLC
- Applicants: Avery Dennison Retail Information Services, LLC
- Inventors: Ian J. FORSTER; Adrian N. FARR
- Web page: https://patentgrep.com/patent/US20170323124A1

## CPC

- 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)}
- 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}
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS

## 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

### Claim 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.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

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

### Claim 4 (depends on 1)

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

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 1)

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

### Claim 7 (depends on 1)

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.

### Claim 8 (depends on 1)

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

### Claim 9 (depends on 1)

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

### Claim 10 (depends on 1)

The system of claim 1, wherein the RFID device is a special “keyed” or authorized RFID device which functions on the substrate.

### Claim 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.

### Claim 12 (depends on 11)

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

### Claim 13 (depends on 11)

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

### Claim 14 (depends on 11)

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

### Claim 15 (depends on 11)

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

### Claim 16 (depends on 11)

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

### Claim 17 (depends on 11)

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

### Claim 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.

### Claim 19 (depends on 18)

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