IP Library Granted Patent US 7,523,855
Granted Patent B2
US 7,523,855 · App. 11/090,229 · Granted Apr 28, 2009

Systems and methods for preserving and maintaining document integrity

Assignee: Konica Minolta Systems Laboratory, Inc.
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Quick Facts
Patent No.
US 7,523,855
App. No.
11/090,229
Granted
Apr 28, 2009
Kind
B2
Abstract

Systems and methods consistent with embodiments of the present invention provide for a method for preserving and maintaining document integrity. In some methods for preserving and maintaining document integrity, the contents of a document, or contents of a document layer may be encoded into a machine-readable form. In some embodiments, the encoded information may be represented using a 2-dimensional bar code. In some methods for preserving and maintaining document integrity, the contents of the document are printed on one side of a page and the machine-readable code is printed on the other side of the page. In some embodiments, a printed document containing the machine-readable code may be scanned and digitized, and content extracted from the scanned data. In some embodiments, the machine-readable code printed on the document is used to recreate layer data from the printed document.

Claims (58)

1. A method comprising:

selecting document layer data for encoding;

encoding the selected document layer data in machine-readable format to form associated machine-readable code; and

printing the contents of each page of the document on one side of the page and printing the associated machine-readable code on the other side of the page.

2. The method of claim 1 , wherein the associated machine-readable code comprises a two dimensional bar code.

3. A computer-readable medium that stores instructions, which when executed by a computer perform steps in a method for preserving and maintaining document integrity, the steps comprising:

selecting document layer data for encoding;

encoding the selected document layer data in a machine-readable format to form associated machine-readable code; and

printing the contents of each page of the document on one side of the page and printing the associated machine-readable code on the other side of the page.

4. The method of claim 3 , wherein the machine-readable code comprises a two dimensional bar code.

5. A computer readable memory containing instructions for controlling a computer system to perform steps in a method for preserving and maintaining document integrity, the steps comprising:

selecting document layer data for encoding;

encoding the selected document layer data in a machine-readable format to form associated machine-readable code; and

printing the contents of each page of the document on one side of the page and printing the associated machine-readable code on the other side of the page.

6. The method of claim 5 , wherein the machine-readable code comprises a two dimensional bar code.

7. A computer processor executing instructions that perform steps in a method for preserving and maintaining document integrity, the steps comprising:

selecting document layer data for encoding;

encoding the selected document layer data in a machine-readable format to form associated machine-readable code; and

printing the contents of each page of the document on one side of the page and printing the associated machine-readable code on the other side of the page.

8. The method of claim 7 , wherein the machine-readable code comprises a two dimensional bar code.

9. A system for preserving and maintaining document integrity comprising:

selecting document layer data for encoding;

encoding the selected document layer data in a machine-readable format to form associated machine-readable code; and

printing the contents of each page of the document on one side of the page and printing the associated machine-readable code on the other side of the page.

10. The method of claim 9 , wherein the machine-readable code comprises a two dimensional bar code.

11. A method of retrieving the content of document pages and metadata associated with document pages, from a printed document containing a machine-readable code comprising:

scanning the printed document containing the machine-readable code;

processing the scanned document data to extract document content;

processing the scanned machine-readable code to extract document meta-data; and

associating the extracted document meta-data with the extracted document content.

12. The method of claim 11 , wherein scanning the printed document further comprises reading machine-readable code on the document.

13. The method of claim 11 , wherein processing the scanned document section data to extract document content further comprises using character recognition and/or image processing techniques on the scanned data.

14. The method of claim 11 , wherein the machine-readable code comprises a two-dimensional bar code.

15. The method of claim 11 , wherein processing the scanned machine readable code to extract document meta-data further comprises correlating the data read from the machine readable code with contents of document sections.

16. The method of claim 11 , wherein associating the extracted document meta-data with the extracted document content further comprises storing the extracted document meta-data as a document layer.

17. A computer readable medium containing instructions for controlling a computer system to perform steps in a method for retrieving the content of document sections and meta-data associated with document sections, from a printed document containing a machine-readable code, the steps comprising:

scanning the printed document containing the machine-readable code;

processing the scanned document section data to extract document content;

processing the scanned machine-readable code to extract document meta-data; and

associating the extracted document meta-data with the extracted document content.

18. The method of claim 17 , wherein processing the scanned document section data to extract document content further comprises using character recognition and/or image processing techniques on the scanned data.

19. The method of claim 17 , wherein processing the scanned machine readable code to extract document meta-data further comprises correlating the data read from the machine readable code with contents of document sections.

20. The method of claim 17 , wherein associating the extracted document meta-data with the extracted document content further comprises storing the extracted document meta-data as a document layer.

21. A processor executing instructions for controlling a computer system to perform steps in a method for retrieving the content of document sections and meta-data associated with document sections, from a printed document containing a machine-readable encoding, the steps comprising:

scanning the printed document containing the machine-readable code;

processing the scanned document section data to extract document content;

processing the scanned machine-readable code to extract document meta-data; and

associating the extracted document meta-data with the extracted document content.

22. A computer readable memory containing instructions for controlling a computer system to perform steps in a method for retrieving the content of document sections and meta-data associated with document sections, from a printed document containing a machine-readable code, the steps comprising:

scanning the printed document containing the machine-readable code;

processing the scanned document section data to extract document content;

processing the scanned machine-readable code to extract document meta-data; and

associating the extracted document meta-data with the extracted document content.

23. A system for retrieving the content of document sections and metadata associated with document sections, from a printed document containing a machine-readable code comprising:

scanning the printed document containing the machine-readable code;

processing the scanned document section data to extract document content;

processing the scanned machine-readable code to extract document meta-data; and

associating the extracted document meta-data with the extracted document content.

Assignments (2)
CHANGE OF NAME Recorded Oct 4, 2011
From: KONICA MINOLTA SYSTEMS LABORATORY, INC.
To: KONICA MINOLTA LABORATORY U.S.A., INC.
Reel/Frame 027012/0081 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2005
From: TOMITA, HIROSHI
To: KONICA MINOLTA SYSTEMS LABORATORY, INC.
Reel/Frame 016429/0895 →
Continuity (1)
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