RFID enabled information disks

• US 20040052202A1
• Filed: 09/13/2002
• Published: 03/18/2004
• Est. Priority Date: 09/13/2002
• Status: Abandoned Application

• Current Assignee: International Paper Company
• Original Assignee: International Paper Company
• Inventors: Brollier, Brian W.
• Application Number:
  US10/242,964
• Publication Number:
  US 20040052202A1
• Time in Patent Office: Days
• US Class Current: 369/273
• CPC Class Codes: G06K 19/045 the record carrier being of the non-contact type, e.g. RFID, and being specially adapted for attachment to a disc, e.g. a CD or DVD
• CPC Class Codes: G08B 13/2417 having a radio frequency identification chip
• CPC Class Codes: G08B 13/2437 Tag layered structure, processes for making layered tags
• CPC Class Codes: G08B 13/2445 Tag integrated into item to be protected, e.g. source tagging
• CPC Class Codes: G11B 23/0042 with provision for auxiliary features sensing such features G11B17/00, G11B19/02

Abstract

An information disk includes an annular disk structure having a surface with a metalized data storage area coupled to the surface. An antenna is affixed to the disk surface and positioned radially inwardly from the metalized data storage area. A radio frequency identification processor is coupled to the disk surface and the antenna. A non-conductive gap is positioned between the metalized data storage area and the antenna and the processor is positioned in the gap. A protective coating is positioned on the disk structure The processor may also be positioned radially inwardly from the antenna. A process for enabling an information disk with a radio frequency identification processor is also described. The process includes providing a disk with an outer metalized data storage portion and an inner antenna portion, with the portions separated by a gap for accommodating a processor. The process also includes positioning the processor in the gap so that the processor is electrically active, and coating the disk with a protective coating to cover the surface of the disk.

Claims

1. An information disk comprising:

an annular disk structure having a surface with a metalized data storage area coupled to the surface for storing information;

an antenna coupled to said annular disk surface positioned radially inwardly from the metalized data storage area;

a radio frequency identification processor coupled to said annular disk surface and the antenna; and

a protective coating coupled to at least one of the processor or the antenna.

2. The information disk of claim 1, wherein the protective coating is positioned over the disk structure covering the metalized data storage area, antenna, and processor.

3. The information disk of claim 1, wherein the processor is positioned between the metalized data storage area and the antenna.

4. The information disk of claim 1, wherein the processor is positioned radially inwardly from the antenna.

5. The information disk as defined in claim 1, wherein said processor is configured for cooperation with a dipole antenna system and has two terminals, with one of said terminals electrically connected to said antenna and the other of said terminals electrically connected to said data storage area.

6. The information disk as defined in claim 1, wherein the processor is a dipole inductive processor that is electrically coupled to the metalized data storage area and the antenna.

7. The information disk as defined in claim 6, wherein a gap is positioned between the metalized data storage area and the antenna, and the inductive processor is positioned at least partially in the gap.

8. The information disk as defined in claim 1, wherein said processor is configured for cooperation with an inductive antenna system and has two terminals, with said antenna having first and second poles, each pole being electrically connected to one of the terminals of said processor.

9. The information disk as defined in claim 1, wherein the processor has two terminals and is positioned radially inwardly from the antenna and the antenna is a loop having a first and a second pole, and the first and second poles of the loop are electrically coupled to the two terminals of the processor.

10. The information disk as defined in claim 8, further comprising an opening in the center of the annular disk structure, with the antenna encircling the opening, wherein the processor is positioned between the antenna and the opening on the disk surface.

11. The information disk as defined in claim 8, further comprising an opening in the center of the annular disk structure, with the antenna encircling the opening, wherein the processor is positioned between the antenna and the metalized data storage area on the disk surface.

12. The information disk as defined in claim 8, wherein the first pole is connected to one of the terminals of the processor and the second pole has a bridging connector that bridges a portion of the antenna and couples with the other terminal of the processor.

13. The information disk as defined in claim 12, further comprising an insulating dielectric positioned between the antenna and the bridging connector.

14. The information disk as defined in claim 1, wherein the antenna is a metalized area on the disk surface and the processor is a dipole inductive processor, wherein one terminal of the inductive processor is electrically coupled to the antenna, and the other terminal of the inductive processor is electrically coupled to the metalized data storage area.

15. A system for reading an information disk, comprising:

the information disk of claim 14;

and

a reader having two coupling plates, with one coupling plate configured to electrically interact with the antenna and the other coupling plate configured to electrically interact with the metalized data storage area to activate the dipole inductive processor.

16. The information disk as defined in claim 1, wherein the antenna comprises at least one of a metal, an electrically conductive ink, or an electrically conductive polymer.

17. The information disk as defined in claim 1, wherein the annular disk surface has a recess defined therein, and at least one of said processor and said antenna is positioned in the recess.

18. The information disk as defined in claim 1, wherein both said processor and said antenna are embedded within said annular disk surface.

19. The information disk as defined in claim 1, wherein said annular disk structure includes two annular disk layers, the processor and antenna are fixed between the two annular disk layers, and the non-conductive coating is positioned between the two disk layers.

20. The information disk as defined in claim 19, wherein the annular disk layers each include a recess and the processor is positioned in the recesses.

21. The information disk as defined in claim 1, wherein the antenna is one of a dipole antenna or a folded dipole antenna.

22. The information disk as defined in claim 21, wherein the antenna and processor are integrally formed as a tag positioned on the disk surface radially inwardly from the metalized data storage area.

23. The information disk as defined in claim 1, wherein said information disk is one of a CD-ROM, a CD−

R, a CD−

RW, a DVD-ROM, a DVD−

R(G), a DVD−

R(A), a DVD−

RW, a DVD-RAM, a DVD+RW, and a DVD+R.

24. The process as defined in claim 1, wherein said disk is polycarbonate and the coating is acrylic or nitrocellulose.

25. A process of enabling an information disk with a radio frequency identification processor comprising:

providing a disk having a disk surface with an outer metalized data storage portion and an inner antenna portion, with said inner and outer portions being separated by a gap for accommodating a radio frequency identification processor;

positioning said processor in said gap such that said processor is electrically active;

coating said disk surface with a coating to cover said disk surface.

26. The process as defined in claim 25, wherein the coating step comprises coating at least the antenna portion, the gap, the processor and the metalized data storage portion.

27. The process as defined in claim 25, further comprising:

forming a recess in the disk surface at the gap, the recess being dimensioned for receiving said processor; and

positioning the processor in the recess.

28. The process as defined in claim 27, wherein the coating fills the recess.

29. The process as defined in claim 27, further comprising forming the disk by a compression molding process such that said recess is integrally provided in said disk surface.

30. The process as defined in claim 27, further comprising forming a recess in said disk after the disk is formed.

31. The process as defined in claim 25, wherein the providing step includes print depositing the antenna portion on the disk with a conductive material.

32. The process as defined in claim 25, wherein the providing step includes masking a central portion of the disk, metalizing the disk to form the outer metalized data storage portion, and removing the masking to reveal an unmetalized central portion and the gap.

33. The process as defined in claim 32, wherein the providing step further comprises printing a conductive material onto the central portion of the disk to provide the inner antenna portion.

34. The process as defined in claim 32, wherein the providing step further comprises depositing a conductive material in the central portion of the disk to provide the inner antenna portion.

35. The process as defined in claim 25, wherein the providing step includes masking an annular ring portion of the disk, metalizing the disk to form the outer metalized storage portion and the inner metalized portion, and removing the masking to reveal the gap, and further comprising cutting a pattern into the inner metalized portion to form a shaped antenna portion.

36. The process as defined in claim 25, wherein the providing step includes masking an annular ring portion and a part of the antenna portion of the disk, metalizing the disk to form the outer metalized storage portion and the inner metalized antenna portion, and removing the masking to reveal both the gap and the antenna portion, wherein the antenna portion is masked in a predetermined pattern to form a shaped antenna portion once the masking is removed.

37. The process as defined in claim 25, wherein the providing step includes providing a disk, metalizing the disk to form a metalized surface that includes the outer metalized data storage portion and the antenna portion, and removing an annular ring portion of the metalized surface to define a gap between the outer metalized data storage portion and the antenna portion.

38. The process as defined in claim 37, wherein the removing step includes utilizing a laser after metalization to remove the annular ring portion of the metalized surface.

39. The process as defined in claim 25, wherein the providing step includes positioning the antenna portion and processor on a single tag and positioning the tag partially in the gap and partially in the inner antenna portion.

40. A process of enabling an information disk with an RFID processor comprising:

providing an annular disk having an annular surface with an outer metalized data storage portion and an inner antenna portion, with said inner and outer portions being separating by a non-conductive gap, with the gap being dimensioned to accommodate a radio frequency identification processor;

positioning the processor radially inwardly from the antenna portion on the disk surface such that the processor is electrically coupled to the antenna;

coating the disk with a coating to cover the disk surface.

41. The process of claim 40, wherein the processor has two terminals and the antenna portion is a loop with two poles, with one of the terminals being coupled to one of the poles, and the other of the terminals being coupled to the other pole.

42. A process of enabling an information disk with a radio frequency identification processor comprising:

providing a disk having a surface with an outer metalized data storage portion around the outer periphery thereof and an inner portion;

positioning a loop-type antenna on the inner portion of the disk surface, said loop-type antenna having a first and a second pole;

positioning a radio frequency identification processor having a first and a second terminal in association with the loop-type antenna such that the first terminal of the processor is associated with the first pole of the loop-type antenna and the second terminal of the processor is associated with the second pole of the loop-type antenna; and

coating the disk with a protective coating.

43. The process of claim 42, wherein the second terminal of the processor is associated with the second pole of the loop-type antenna by a bridging connector positioned over the processor and the loop-type antenna.

44. The process of claim 42, wherein the coating step includes coating the data storage portion, the loop-type antenna, and the processor.

45. The process of claim 42, wherein the positioning of a radio frequency identification processor step includes positioning the processor over the loop-type antenna.

46. The process of claim 42, wherein the positioning a radio frequency identification processor step includes positioning the processor under the loop-type antenna.

47. The process of claim 46, further comprising electrically associating the processor with the loop-type antenna.

48. A process of enabling an information disk with a radio frequency identification processor comprising:

embedding a radio frequency identification processor in a disk structure;

metalizing the disk structure over the processor to form a data storage area and an antenna such that the processor is electrically associated with at least one of the data storage area and the antenna.

49. The process of claim 48, further comprising coating the disk with a coating.

50. An information disk comprising:

a rigid disk structure having a surface with a first metalized portion and a second metalized portion disposed on the surface, with a gap positioned therebetween; and

a radio frequency identification processor positioned at least partially in the gap, wherein the processor is electrically coupled to at least one of the first or second metalized portions.

51. The information disk of claim 50, further comprising an interposer associated with said processor, wherein the interposer is positioned at least partially in the gap and the processor is connected to the interposer.

52. The information disk of claim 50, wherein the disk structure is annular, with the first metalized portion being positioned near the outer periphery of the disk structure and the second metalized portion being positioned radially inwardly from the first metalized portion.

53. The information disk of claim 50, wherein the first metalized portion is a data storage area and the second metalized portion is an antenna.

54. The information disk of claim 50, wherein the processor is electrically associated with both the first metalized portion and the second metalized portion.

55. The information disk of claim 53, wherein the antenna is a loop with a first end and a second pole, and the first and second poles are electrically associated with the processor.

56. The information disk of claim 50, wherein a recess is positioned at least partially in the gap and the processor is positioned in the recess.

57. The information disk of claim 50, wherein the disk structure has two disk layers that are bonded together, and the processor is positioned between the layers.

58. The information disk of claim 50, wherein the disk structure has two disk layers that are bonded together, and the processor is embedded in an exterior wall of the disk structure.

59. The information disk of claim 50, wherein the processor is electrically associated with the first or second metalized portions by one of a solder, a conductive adhesive, a conductive polymer, a conductive ink, or contact pressure.

60. The information disk of claim 50, wherein the disk structure has an acrylic top layer and the processor is encased within the acrylic top layer.

61. An information disk comprising:

a rigid, annular disk structure having a surface with a central opening and a metalized data storage area positioned on the surface for storing information; and

a radio frequency identification processor coupled to said annular disk surface, said processor having an onboard antenna.

62. The information disk of claim 61, further comprising a protective coating covering the disk structure so that the processor is positioned under the protective coating.

63. The information disk of claim 62, wherein the processor is positioned radially inwardly from said metalized data storage area.

64. The information disk of claim 62, wherein the processor is positioned radially outwardly from said metalized data storage area.

65. The information disk of claim 62, further comprising a conductive area positioned on the disk surface between the metalized data storage area and the central opening, said conductive area having a pattern of conductive material, with said processor being electrically coupled to the conductive area.

66. The information disk of claim 62, wherein the metalized data storage area includes a portion that is data free, and the processor is positioned in the data free portion of the metalized data storage area.

67. An information disk comprising:

an annular disk structure having an annular disk surface with an outer metalized portion and an inner metalized portion, with an annular gap positioned therebetween; and

a radio frequency identification processor positioned radially inwardly from the inner metalized portion, wherein the processor is electrically coupled to the inner metalized portion.