RFID barcode and RFID barcode reading system

• US 7,353,997 B2
• Filed: 06/19/2006
• Issued: 04/08/2008
• Est. Priority Date: 01/13/2006
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Min, Young-hoon, Tikhov, Yuri
• Primary Examiner(s): Lee; Michael G.
• Assistant Examiner(s): Vo; Tuyen Kim
• Application Number:
  US11/455,214
• Publication Number:
  US 20070164121A1
• Time in Patent Office: 659 Days
• Field of Search: 235/492, 235/462.01, 340/572.1, 340/572.8, 340/572.4, 340/10.4, 340/10.5, 340/572.7
• US Class Current: 235/462.01
• CPC Class Codes: G06K 19/0672 with resonating marks

Abstract

A radio frequency identification (RFID) barcode includes a plurality of sets of conductive strips and a plurality of inductors, wherein each of the plurality of sets of conductive strips respectively includes a plurality of conductive strips separated by at least one gap, and each of the plurality of inductors is disposed in the at least one gap of a corresponding set of conductive strips and connects two of the plurality of conductive strips of the corresponding set of conductive strips. The sets of conductive strips are arranged in parallel and separated from one another in a predetermined distance. The RFID barcode may further include a dielectric substrate supporting the sets of conductive strips and the inductors, and a metal layer provided on all of a rear surface of the dielectric substrate.

Claims

1. A radio frequency identification (RFID) barcode comprising:

a plurality of sets of conductive strips, wherein each of the plurality of sets of conductive strips respectively includes a plurality of conductive strips separated by at least one gap; and

a plurality of inductors, wherein each of the plurality of inductors is disposed in the at least one gap of a corresponding set of conductive strips and connects two of the plurality of conductive strips of the corresponding set of conductive strips,

wherein the sets of conductive strips and the inductors are arranged in rows to form a barcode.

2. The RFID barcode of claim 1, wherein the plurality of sets of conductive strips are respectively arranged in parallel and separated from each other by a predetermined distance.

3. The RFID barcode of claim 1, further comprising a dielectric substrate which supports the plurality of sets of conductive strips and the plurality of inductors.

4. The RFID barcode of claim 3, further comprising a metal layer which is disposed on all of a rear surface of the dielectric substrate.

5. The RFID barcode of claim 3, further comprising a metal layer disposed on a part of a rear surface of the dielectric substrate.

6. The RFID barcode of claim 1, wherein the plurality of conductive strips of each of the plurality of sets of conductive strips comprises a first conductive strip and a second conductive strip separated by the gap, and each of the plurality of inductors has a first end connected to the first conductive strip of corresponding set of conductive strips and a second end connected to the second conductive strip of the corresponding set of conductive strips.

7. The RFID barcode of claim 1, wherein each of the plurality of inductors is a meander-shaped metal thin film.

8. The RFID barcode of claim 1, wherein each of the conductive strips is bulk-wire-shaped.

9. A radio frequency identification (RFID) barcode reading system comprising:

an RFID barcode comprising a plurality of sets of conductive strips and a plurality of inductors, wherein each of the plurality of sets of conductive strips respectively includes a plurality of conductive strips separated by at least one gap, and each of the plurality of inductors is disposed in the at least one gap of a corresponding set of conductive strips and connects two of the plurality of conductive strips of the corresponding set of conductive strips; and

an RFID barcode reader which emits an electromagnetic wave to the RFID barcode and receives a return echo from the RFID barcode,

wherein the sets of conductive strips and the inductors are arranged in rows to form a barcode.

10. The RFID barcode reading system of claim 9, wherein the plurality of sets of conductive strips are respectively arranged in parallel separated from each other by a predetermined distance.

11. The RFID barcode reading system of claim 9, wherein the RFID barcode further comprises a dielectric substrate which supports the plurality of sets of conductive strips and the plurality of inductors.

12. The RFID barcode reading system of claim 9, wherein the RFID barcode further comprises a metal layer disposed on all of a rear surface of the dielectric substrate.

13. The RFID barcode reading system of claim 9, wherein the RFID barcode further comprises a metal layer disposed on a part of the rear surface of the dielectric substrate.

14. The RFID barcode reading system of claim 9, wherein the plurality of conductors of each of the plurality of sets of conductive strips comprises a first conductive strip and a second conductive strip separated by the gap, and each of the plurality of inductors has a first end connected to the first conductive strip of corresponding set of conductive strips and a second connected to the second conductive strip of the corresponding set of conductive strips.

15. The RFID barcode of claim 9, wherein each of the plurality of inductors is a meander-shaped metal thin film.

16. The RFID barcode of claim 9, wherein each of the conductive strips is bulk-wire-shaped.