Shielded RFID tags in labels

• US 7,388,503 B2
• Filed: 03/24/2005
• Issued: 06/17/2008
• Est. Priority Date: 03/24/2005
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Posamentier, Joshua
• Primary Examiner(s): La, Anh V.
• Application Number:
  US11/089,917
• Publication Number:
  US 20060214802A1
• Time in Patent Office: 1,181 Days
• Field of Search: 340/572.8, 340/572.1, 340/10.1, 283/109, 235/375, 156/60, 174/353, 174/372, 150/147, 150/148
• US Class Current: 340/572.8
• CPC Class Codes: B65C 2009/0003 Use of RFID labels
• CPC Class Codes: G06K 1/18 by transferring data from one type of record carrier on to another type of record carrier, e.g. from magnetic tape to punched card
• CPC Class Codes: G06K 19/07327 Passive means, e.g. Faraday cages Faraday-type protection of electric circuits in general H05K9/00
• CPC Class Codes: G06K 3/02 Translating markings on a record carrier into printed data on the same record carrier, i.e. interpreting
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10079 the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions

Abstract

Labels that have radio frequency identification (RFID) tags embedded within them may include a removable electromagnetic shield that is removed only for the next tag to be processed, so that only that tag will be detected by an RFID reader. In some embodiments such processing includes printing the labels. Different embodiments may use single-sided or double-sided shielding.

Claims

1. An apparatus, comprising:

a label, removably attached to a supporting material, the label suitable for being printed on by a printer, the label comprising a radio frequency identification (RFID) tag; and

removable electromagnetic shielding coupled to the label and disposed so as to shield at least an antenna portion of the RFID tag.

2. The apparatus of claim 1, wherein the removable electromagnetic shielding is disposed on one side of the label.

3. The apparatus of claim 2, wherein the removable electromagnetic shielding is disposed on first and second sides of the label, the second side being opposite the first side.

4. The apparatus of claim 3, wherein a portion of the electromagnetic shielding on the first side of the label is electrically connected to a portion of the electromagnetic shielding on the second side of the label.

5. The apparatus of claim 1, wherein the electromagnetic shielding comprises a flexible conductive planar material.

6. An apparatus, comprising:

a planar material;

a plurality of labels removably attached to the planar material, each label comprising a radio frequency identification (RFID) tag;

electromagnetic shielding removably attached to at least one of the planar material and the plurality of labels, the electromagnetic shielding disposed so as to shield at least an antenna portion of at least one of the RFID tags;

wherein each label is suitable for being printed on by a printer.

7. The apparatus of claim 6, wherein the electromagnetic shielding is disposed on only one side of the planar material.

8. The apparatus of claim 6, wherein the electromagnetic shielding is disposed on both sides of the planar material.

9. The apparatus of claim 6, wherein the electromagnetic shielding comprises a flexible conductive material.

10. The apparatus of claim 6, wherein the electromagnetic shielding is adhesively connected to at least one of the planar material and the plurality of printable labels.

11. The apparatus of claim 6, wherein the electromagnetic shielding is configured to be removable from one of the plurality of labels at a time.

12. The apparatus of claim 6, wherein the planar material is configured in a roll configuration.

13. A system, comprising:

a label feeder mechanism to feed labels to a handling mechanism; and

a shielding removal device to remove electromagnetic shielding from at least one label at a time before said handling;

wherein the labels each contain a radio frequency identification (RFID) tag; and

wherein the labels are each suitable for being printed on by a printer.

14. The system of claim 13, wherein the shielding removal device is to remove the electromagnetic shielding from the at least one label sufficiently to permit an RFID reader to read at least one RFID tag embedded in the at least one label.

15. The system of claim 14, further comprising:

an RFID reader to read an RFID tag identification number from a label with the electromagnetic shielding removed; and

a processor to associate device information with the RFID tag identification number.

16. The system of claim 15, further comprising a printer to print the device information on the label with the electromagnetic shielding removed.

17. A method, comprising:

removing electromagnetic shielding from a label comprising a radio frequency identification (RFID) tag;

reading an identification number from the RFID tag; and

printing the RFID tag.

18. The method of claim 17, further comprising associating the identification number with the label in at least one computer record.

19. The method of claim 17, wherein said removing comprises:

physically separating the electromagnetic shielding from the label; and

positioning the label such that an antenna for the RFID tag can receive sufficient electromagnetic radiation from an RFID reader to operate the RFID tag.