Security marks simulating natural defects for embedding information in documents

• US 20080093468A1
• Filed: 10/18/2006
• Published: 04/24/2008
• Est. Priority Date: 10/18/2006
• Status: Active Grant

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Wang, Shen-ge, Fuss, William A., Eschbach, Reiner, Fan, Zhigang, Low, James R., Marlett, Calvin Jon
• Granted Patent: US 8,056,821 B2
• Time in Patent Office: Days
• US Class Current: 235/494
• CPC Class Codes: B42D 15/0073 characterised by shape or material of the sheets
• CPC Class Codes: B42D 2035/02 Nature of the markings
• CPC Class Codes: B42D 2035/50 Corresponding markings appearing in different shapes or at different places
• CPC Class Codes: B42D 25/21 for multiple purposes
• CPC Class Codes: B42D 25/29 Securities; Bank notes
• CPC Class Codes: B42D 25/305 Associated digital information record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00

Abstract

A system for generating a security mark includes a data reception component that receives information. A security mark generation component in communication with the data reception component generates at least one security mark configuration based at least in part upon the received information. The at least one security mark configuration includes at least one simulation mark which resembles a natural feature. An application component applies one configuration of the at least one security mark configurations to a recipient. The applied security mark configuration obeys at least one rule whereby the security mark is distinguishable from the natural feature which it resembles by a system for detection of security marks.

Claims

1. A system for generating a security mark comprising:

a data reception component that receives information;

a security mark generation component in communication with the data reception component that generates at least one security mark configuration based at least in part upon the received information, the at least one security mark configuration comprising at least one simulation mark which resembles a natural defect; and

an application component that applies one configuration of the at least one security mark configurations to a recipient, the applied security mark configuration obeying at least one rule whereby the security mark is distinguishable from the natural defect which it resembles, by a system for detection of security marks, with an acceptable level of confidence.

2. The system of claim 1, wherein the recipient comprises a tangible medium.

3. The system of claim 2, wherein the recipient comprises an image located entirely within a predefined image area of the tangible medium and the applied security mark configuration is located at least partially outside the predefined image area.

4. The system of claim 1, wherein the applied security mark configuration comprises a plurality of simulation marks.

5. The system of claim 4, wherein the at least one rule defines a spatial relationship between at least first and second simulation marks of the plurality of simulation marks.

6. The system of claim 1, wherein the natural defect resembled is a natural defect which is visually detectable and wherein the applied security mark is indistinguishable from the natural defect resembled to the unaided eye.

7. The system of claim 6, wherein the natural defect resembled is a feature often observed when tangible recipients are observed by the unaided eye.

8. The system of claim 1, wherein the natural defect resembled by the security mark comprises at least one of a stain, a dust particle, an irregularly shaped ink spot, a printer defect, a fingerprint, and a paper fiber.

9. The system of claim 1, wherein the simulation mark is distinguishable from the natural defect it resembles by at least one of size, color, shape, repetition of an identifiable feature of the simulation mark, and spatial relationship to another simulation mark.

10. The system of claim 1, wherein the application component applies the security mark with at least one of printing, engraving, embossing, discoloration and material removal of the recipient.

11. The system of claim 1, further comprising a memory component which stores instructions for generating the at least one security mark configuration, based on received information and wherein the generation component executes the instructions.

12. The system of claim 11, wherein the memory stores a plurality of the sets of rules for generation of security marks, and wherein the security mark generating component selects one of the plurality of sets of rules based on the information received.

13. The system of claim 1, wherein the information received is representative of at least one of an origin of manufacture, a date, a time, a serial number, and an alphanumeric string.

14. A method for applying a security mark to a recipient comprising:

generating at least one security mark configuration representative of information to be applied to a recipient, the at least one security mark configuration comprising at least one simulation mark, which configuration only resembles a natural defect but is not a natural defect; and

applying one configuration of the at least one security mark configurations to a recipient, the applied security mark configuration obeying at least one rule, whereby the security mark is distinguishable from the defect which it only resembles, by a system for detection of security marks, with an acceptable level of confidence.

15. The method of claim 14, wherein the applied security mark configuration includes a plurality of simulation marks and wherein the applied security mark configuration obeys at least one rule which defines a spatial relationship between at least a first of the plurality of marks and a second of the plurality of marks.

16. The method of claim 14, wherein the recipient includes an image which is located entirely within a predefined image area and wherein the applying includes applying the security mark configuration to the recipient outside the predefined image area.

17. A computer readable medium comprising instructions for performing the method of claim 14.

18. A recipient comprising a security mark applied by the method of claim 14.

19. A recipient comprising an image and a machine readable security mark embedded therein, the security mark comprising at least one simulation mark which resembles a natural defect, the at least one simulation mark obeying at least one predefined rule whereby the security mark is distinguishable from the natural defect which it resembles.

20. (canceled)

21. (canceled)

22. (canceled)

23. A system for generating a security mark comprising:

a data reception component that receives information;

a security mark generation component in communication with the data reception component that generates at least one security mark configuration based at least in part upon the received information, the at least one security mark configuration comprising a collection of simulation marks, the security mark configuration resembling a natural defect and which is indistinguishable therefrom to the unaided eye when applied to a recipient, the security mark configuration encoding the received information; and

an application component that applies one configuration of the at least one security mark configurations to the recipient, the applied security mark configuration obeying at least one rule whereby the applied security mark is distinguishable, on the recipient, from the natural defect which it resembles, by a system for detection of security marks, with an acceptable level of confidence.