Reducing electromagnetic interference in radio frequency identification applications

• US 20060097057A1
• Filed: 10/25/2004
• Published: 05/11/2006
• Est. Priority Date: 10/25/2004
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Porad, Kenneth D.
• Granted Patent: US 7,064,668 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• 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 19/0776 the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
• CPC Class Codes: G06K 19/07771 the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 17/001 for modifying the directional characteristic of an aerial

Abstract

Systems and methods are disclosed herein for radio frequency identification (RFID) applications. For example, in accordance with an embodiment of the present invention, an RFID label is attached to an item (e.g., a metal object or a metal surface of the item) via an absorber to reduce electromagnetic interference.

Claims

1. A radio frequency identification label comprising:

a radio frequency identification device adapted to transfer information to a radio frequency identification reader, wherein the radio frequency identification device operates within a frequency range of approximately 12 to 15 MHz; and

an FGM 40 absorber, coupled to the radio frequency identification device, adapted to reduce electromagnetic interference for the radio frequency identification device.

3. The radio frequency identification label of claim 1, wherein the radio frequency identification device operates at a frequency of approximately 13.56 MHz.

4. The radio frequency identification label of claim 1, wherein the radio frequency identification label further comprises a smart label which encapsulates the radio frequency identification device, wherein the radio frequency identification label further comprises on a first surface at least one of a text portion and a barcode portion.

5. The radio frequency identification label of claim 1, wherein the absorber is coupled to the radio frequency identification device with an adhesive.

6. The radio frequency identification label of claim 1, wherein the radio frequency identification device is encapsulated and coupled to the absorber with an adhesive.

7. The radio frequency identification label of claim 1, wherein the radio frequency identification label is adapted to be secured to an item with the absorber at least partially disposed between the radio frequency identification device and the item.

8. The radio frequency identification label of claim 7, wherein the item comprises a part of a vehicle.

2. (canceled)

9. A radio frequency identification system comprising:

a radio frequency identification label adapted to operate within a frequency range of approximately 12 to 15 MHz; and

an FGM 40 absorber, coupled to the radio frequency identification label, adapted to reduce electromagnetic interference for the radio frequency identification label.

10. The radio frequency identification system of claim 9, further comprising a radio frequency identification reader adapted to read information stored by the radio frequency identification label.

11. The radio frequency identification system of claim 9, wherein the absorber is further adapted to couple to an item, the absorber being at least partially disposed between the radio frequency identification label and the item.

12. The radio frequency identification system of claim 11, wherein the absorber is coupled to the radio frequency identification label with a first adhesive and coupled to the item with a second adhesive.

13. The radio frequency identification system of claim 11, wherein the item is part of a vehicle.

14. The radio frequency identification system of claim 9, wherein the radio frequency identification label comprises at least one of a radio frequency identification chip, a radio frequency identification inlay, a radio frequency identification tag, and a radio frequency identification smart label.

15. The radio frequency identification system of claim 9, wherein the radio frequency identification label further comprises at least one of textual information and barcode information.

17. The radio frequency identification system of claim 9, wherein the radio frequency identification label operates at a frequency of approximately 13.56 MHz.

16. (canceled)

18. A method of reducing electromagnetic interference for a radio frequency identification system for a vehicle maintenance system, the method comprising:

providing a radio frequency identification label adapted to operate within a frequency range of approximately 12 to 15 MHz;

providing an FGM 40 absorber; and

attaching the radio frequency identification label to an item comprising a replaceable part of the vehicle, wherein the absorber is disposed at least partially between the radio frequency identification label and the item.

21. The method of claim 18, further comprising coupling the absorber to the radio frequency identification label with a first adhesive and wherein the attaching comprises coupling the absorber to the item with a second adhesive.

22. The method of claim 18, wherein the absorber is adapted to reduce electromagnetic interference in the radio frequency identification system.

23. The method of claim 18, further comprising reading information stored in the radio frequency identification label.

24. The method of claim 18, wherein the radio frequency identification label stores information useful for maintenance associated with the item.

19. (canceled)

20. (canceled)