Authenticating identification and security documents

• US 7,856,116 B2
• Filed: 11/08/2005
• Issued: 12/21/2010
• Est. Priority Date: 11/09/2004
• Status: Active Grant

• Current Assignee: Digimarc Corporation
• Original Assignee: Digimarc Corporation
• Inventors: Rhoads, Geoffrey B., Rodriguez, Tony F.
• Primary Examiner(s): Bali; Vikkram
• Assistant Examiner(s): ENTEZARI, MICHELLE M
• Application Number:
  US11/270,802
• Publication Number:
  US 20060115110A1
• Time in Patent Office: 1,869 Days
• Field of Search: None
• US Class Current: 382/100
• CPC Class Codes: B41M 3/10 Watermarks
• CPC Class Codes: B42D 2033/20 Coloured material; Pigments or inks
• CPC Class Codes: B42D 2035/24 Colours
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/328 Diffraction gratings; Holograms
• CPC Class Codes: B42D 25/333 Watermarks
• CPC Class Codes: G06T 1/0021 Image watermarking
• CPC Class Codes: G06T 1/0028 Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
• CPC Class Codes: G06T 2201/0051 Embedding of the watermark in the spatial domain
• CPC Class Codes: G07D 7/004 using digital security elements, e.g. information coded on a magnetic thread or strip
• CPC Class Codes: G07D 7/0051 involving markings removed from an original pattern
• CPC Class Codes: G07D 7/0053 involving markings added to a pattern, e.g. interstitial points
• CPC Class Codes: G07D 7/0055 involving markings displaced slightly from original positions within a pattern
• CPC Class Codes: G07D 7/0057 involving markings which are altered in dimension, e.g. thickened lines
• CPC Class Codes: G07D 7/12 Visible light, infrared or ultraviolet radiation

Abstract

The application discloses identification and security documents and methods and systems for authenticating such identification and security documents. In one implementation, a document includes a first surface; and a second surface. The first surface comprises a first set of print structures and a second set of print structures. The first set of print structures and the second set of print structures cooperate to obscure the location on the first surface of the second set of print structures. The second set of print structures is arranged on the first surface so as to provide a reflection pattern. In one example, the reflection pattern includes a diffraction grating. The second set of print structures is preferably provided on the first surface with metallic ink. In other implementations a financial instrument or identification document is provided with an organic light emitting diode (OLED) array. The OLED array displays information thereon. The information is preferably correlated to the information on or in the financial instrument or identification document.

Claims

1. A method of authenticating a security or identification document with a handheld computing device, the device comprising an optical imager and a display, the document comprising a plurality of randomly or pseudo-randomly occurring features, the document further comprising steganographic indicia provided thereon, the indicia conveying expected characteristics of the features including expected spatial positioning information relative to the document, said method comprising:

receiving from the optical imager optical image or video data corresponding to the document;

analyzing the optical image or video data to obtain actual characteristics of the features, the actual characteristics of the features comprising actual spatial positioning information for the features on the document;

utilizing at least a configured multi-purpose electronic processor, analyzing the optical image or video data to obtain the expected characteristics of the features;

based at least on the expected characteristics and the actual characteristics of the features, providing user feedback via the display corresponding to an expected spatial positioning of the features relative to the document, the user feedback also corresponding to an actual spatial positioning of the features.

2. The method of claim 1 wherein the feedback comprising a graphical representation of the features relative to the document or a graphical representation of the relative spatial positioning of the features relative to the document.

3. The method of claim 1 wherein the device comprises a cell phone.

4. The method of claim 1 wherein the device comprises at least one of a personal digital assistant or a portable music player.

5. The method of claim 1 wherein the steganographic indicia comprises digital watermarking.

6. The method of claim 1 wherein the features comprise fibers and the expected characteristics are encrypted.

7. A handheld computing device comprising:

a display;

an optical imager;

an electronic processor or processing circuitry; and

electronic memory, wherein said electronic memory comprises executable instructions stored therein to cause the processing circuitry or the electronic processor to carry out the method of claim 1.

8. A cell phone, personal digital assistant or portable music player comprising the device of claim 7.

9. A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 1.

10. A non-transitory computer readable media comprising instructions stored thereon to cause a multi-purpose computer processor to perform the acts of claim 1.

11. The method of claim 1 in which the optical imager comprises a cell phone camera.

12. A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 2.

13. A non-transitory computer readable media comprising instructions stored thereon to cause a multi-purpose computer processor to perform the acts of claim 2.

14. The method of claim 2 in which the optical imager comprises a cell phone camera.

15. A programmed computing device storing instructions in memory, said instructions are executable by said programmed computing device to perform the acts of claim 6.

16. A non-transitory computer readable media comprising instructions stored thereon to cause a multi-purpose computer processor to perform the acts of claim 6.

17. The method of claim 6 in which the optical imager comprises a cell phone camera.