PACKING MATERIAL, TAG, CERTIFICATE, PAPER MONEY, AND SECURITIES

• US 20090224922A1
• Filed: 03/23/2009
• Published: 09/10/2009
• Est. Priority Date: 12/26/2003
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: AKIBA, Mai, YAMAZAKI, Shunpei
• Granted Patent: US 7,893,837 B2
• Time in Patent Office: Days
• US Class Current: 340/572.100
• CPC Class Codes: G06K 19/025 the material being flexible or adapted for folding, e.g. paper or paper-like materials used in luggage labels, identification tags, forms or identification documents carrying RFIDs methods for testing the genuineness of valuable papers, e.g. banknotes or passports G07D7/00; constructional features of booklets and the like B42D
• CPC Class Codes: G06K 19/072 the record carrier comprising a plurality of integrated circuit chips
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/14 the marking being sensed by radiation
• CPC Class Codes: G07D 7/01 Testing electronic circuits therein

Abstract

A packing material, a tag, a certificate, paper money, and securities, each of which can be surely prevented from counterfeit or deception, are disclosed. According to the present invention, a plurality of wireless tags is used for an object such as a packing material, a tag, a certificate, paper money, or securities. The location of the plurality of wireless tags attached to each of the object is varied on the object basis such that the object can be identified. Then, the object using the wireless tag is identified by detecting the location of the plurality of wireless tags attached to each of the object. The more random the locations of the wireless tags, the more certain it becomes to identify the object and to prevent or detect the counterfeit and the deception of the object.

Claims

1. A packing material comprising:

a plurality of wireless chips, each having an antenna and an integrated circuit electrically connected to the antenna;

wherein the plurality of wireless chips is dispersed over a surface of a base material or embedded dispersedly in the base material.

2. A packing material according to claim 1, wherein the integrated circuit is formed by a thin film transistor.

3. A packing material according to claim 1, wherein the base material has flexibility.

4. A packing material according to claim 1, wherein the base material has paper or plastic.

5. A packing material according to claim 1, wherein the integrated circuit comprising:

a rectification circuit for producing direct current power supply voltage by using an alternating signal inputted from the antenna;

a demodulation circuit for forming a first signal by demodulating the alternating signal;

a microprocessor for producing a second signal by arithmetic processing according to the first signal;

a modulation circuit for modulating the second signal; and

a switch for modulating a load on the antenna according to the second signal that is modulated.

6. A packing material according to claim 1, wherein the wireless chips have a memory.

7. A packing material according to claim 6, the memory has a region for storing a password for restricting reading.

8. A tag comprising:

a plurality of wireless chips, each having an antenna and an integrated circuit electrically connected to the antenna;

wherein the plurality of wireless chips is dispersed over a surface of a base material or embedded dispersedly in the base material.

9. A tag according to claim 8, wherein the integrated circuit is formed by a thin film transistor.

10. A tag according to claim 8, wherein the base material has flexibility.

11. A tag according to claim 8, wherein the base material has paper or plastic.

12. A tag according to claim 8, wherein the integrated circuit comprising:

a rectification circuit for producing direct current power supply voltage by using an alternating signal inputted from the antenna;

a demodulation circuit for forming a first signal by demodulating the alternating signal;

a microprocessor for producing a second signal by arithmetic processing according to the first signal;

a modulation circuit for modulating the second signal; and

a switch for modulating a load on the antenna according to the second signal that is modulated.

13. A tag according to claim 8, wherein the wireless chips have a memory.

14. A tag according to claim 13, the memory has a region for storing a password for restricting reading.

15. A certificate comprising:

a plurality of wireless chips, each having an antenna and an integrated circuit electrically connected to the antenna;

wherein the plurality of wireless chips is dispersed over a surface of a base material or embedded dispersedly in the base material.

16. A certificate according to claim 15, wherein the integrated circuit is formed by a thin film transistor.

17. A certificate according to claim 15, wherein the base material has flexibility.

18. A certificate according to claim 15, wherein the base material has paper or plastic.

19. A certificate according to claim 15, wherein the integrated circuit comprising:

a rectification circuit for producing direct current power supply voltage by using an alternating signal inputted from the antenna;

a demodulation circuit for forming a first signal by demodulating the alternating signal;

a microprocessor for producing a second signal by arithmetic processing according to the first signal;

a modulation circuit for modulating the second signal; and

a switch for modulating a load on the antenna according to the second signal that is modulated.

20. A certificate according to claim 15, wherein the wireless chips have a memory.

21. A certificate according to claim 20, the memory has a region for storing a password for restricting reading.