US 7,856,116 B2Granted

Authenticating identification and security documents

AssigneeDigimarc Corporation

InventorsTony F. Rodriguez, Geoffrey B. Rhoads

Life of this patent

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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.

Claims17

Dependent claims

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.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 11/270,802Filed 8 Nov 2005 · us provisional application
Priority: 9 Nov 2004
Published: US 2006/0115110 A11 Jun 2006
Granted: 21 Dec 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

G07D 7/004
Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g.…:…
B41M 3/10
Printing processes to produce particular kinds of printed work, e.g. patterns: watermarks
B42D 25/00
Information-bearing cards or sheet-like structures characterised by identification or security features
B42D 25/23
Characterised by a particular use or purpose: identity cards

Family

Application60/626,529Us provisional application · filed 9 Nov 2004
Application60/651,814Us provisional application · filed 10 Feb 2005
Application60/670,773Us provisional application · filed 11 Apr 2005
Application60/674,793Us provisional application · filed 25 Apr 2005
US 2006/0115110 A1Pre-grant publication · published 1 Jun 2006
US 7,856,116 B2This patent

From the US filing history. Foreign family members aren’t listed.