Structure, system, method, and recording medium of implementing a directed self-assembled security pattern

• US 10,150,323 B2
• Filed: 02/29/2016
• Issued: 12/11/2018
• Est. Priority Date: 02/29/2016
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Briggs, Benjamin David, Clevenger, Lawrence A., DeProspo, Bartlet H., Rizzolo, Michael
• Primary Examiner(s): Liu, Li
• Application Number:
  US15/055,835
• Publication Number:
  US 20170249506A1
• Time in Patent Office: 1,016 Days
• CPC Class Codes: B42D 25/24 Passports
• CPC Class Codes: B42D 25/29 Securities; Bank notes
• CPC Class Codes: B42D 25/355 Security threads
• CPC Class Codes: G06F 16/93 Document management systems
• CPC Class Codes: G06V 20/80 Recognising image objects characterised by unique random patterns
• CPC Class Codes: G06V 20/95 Pattern authentication; Markers therefor; Forgery detection

Abstract

An anti-counterfeiting method, system, and non-transitory computer readable medium, include a production circuit configured to produce a Directed Self-Assembly (DSA) pattern including a unique pattern, an analysis circuit configured to analyze the unique pattern, an embedding circuit configured to embed the unique pattern on a document, and a verification circuit configured to verify that the unique pattern embedded on the document corresponds to the document.

Claims

1. An anti-counterfeiting system, comprising:

a production circuit configured to produce a Directed Self-Assembly (DSA) pattern including a unique and randomized pattern;

an analysis circuit configured to analyze the unique and randomized pattern;

an embedding circuit configured to embed the unique and randomized pattern on a document; and

a verification circuit configured to verify that the unique and randomized pattern embedded on the document corresponds to the document,

wherein the analysis circuit stores a unique identifier for the unique and randomized pattern based on the document in a database,

wherein the verification circuit verifies that the unique and randomized pattern corresponds to the document based on the unique identifier stored in the database, and

wherein the verification circuit is further configured to learn errors between a current unique and randomized pattern being verified and an original of the unique and randomized pattern such that the verification circuit verifies the unique pattern corresponds to the document with errors in the current unique pattern and the database is updated with the current unique and randomized pattern including the errors.

2. The system of claim 1, further comprising a transfer circuit configured to transfer the unique and randomized pattern onto a strip,

wherein the embedding circuit embedded the strip including the unique and randomized pattern on the document.

3. The system of claim 2, wherein the embedding circuit embeds the unique and randomized pattern onto fibers of the document.

4. The system of claim 2, wherein the unique and randomized pattern covers an entirety of the strip, and

wherein the analysis circuit analyzes a portion of the unique and randomized pattern covering the entirety of the strip and stores a unique identifier associated with the portion of the unique and randomized pattern in a database.

5. The system of claim 2, wherein the unique and randomized pattern covers an entirety of the strip, and

wherein the analysis circuit analyzes an entirety of the unique and randomized pattern covering the entirety of the strip and stores a unique identifier associated with the entirety of the unique and randomized pattern in a database.

6. The system of claim 2, wherein the analysis circuit analyzes the unique and randomized pattern after the strip including the unique and randomized pattern is embedded onto the document.

7. The system of claim 1, wherein the embedding circuit embeds the unique and randomized pattern onto fibers of the document.

8. The system of claim 7, wherein the unique and randomized pattern covers an entirety of the document, and

wherein the analysis circuit analyzes a portion of the unique and randomized pattern embedded in the fibers covering the entirety of the document and stores a unique identifier associated with the portion of the unique and randomized pattern in a database.

9. The system of claim 7, wherein the unique and randomized pattern covers an entirety of the document, and

wherein the analysis circuit analyzes an entirety of the unique and randomized pattern embedded in the fibers covering the entirety of the document and stores a unique identifier associated with the entirety of the unique and randomized pattern in a database.

10. The system of claim 7, wherein the analysis circuit analyzes a portion of the fibers including the unique and randomized pattern.

11. The system of claim 1, wherein a feature width of the unique and randomized pattern is in a range of 1 nm to 200 nm.

12. The system of claim 11, wherein a feature width of the unique and randomized pattern is in a range of 10 nm to 50 ran.

13. An anti-counterfeiting method, comprising:

producing a Directed Self-Assembly (DSA) pattern including a unique and randomized pattern;

analyzing the unique and randomized pattern;

embedding the unique and randomized pattern on a document; and

verifying that the unique and randomized pattern embedded on the document corresponds to the document; and

wherein the analyzing further includes storing a unique identifier for the unique and randomized pattern based on the document in a database,

wherein the verifying verifies that the unique and randomized pattern corresponds to the document based on the unique identifier stored in the database,

wherein the verifying further learns errors between a current unique and randomized pattern being verified and an original of the unique and randomized pattern such that the verifying verifies the unique pattern corresponds to the document with errors in the current unique pattern and the database is updated with the current unique and randomized pattern including the errors.

14. A non-transitory computer-readable recording medium recording an anti-counterfeiting program, the program causing a computer to perform the method of claim 13.