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US 2011/0298203 A1Published application
Document authentication enhancement processes
AssigneeXerox Corporation
InventorsDavid H. Pan, Pinyen Lin, Zhigang Fan
Life of this patent
Estimating the term…
Abstract
Disclosed are anti-counterfeiting methods which use a fiduciary marker encoded with the location of a hidden security feature. Documents produced by the methods, and methods for verifying authenticity of documents produced by the methods, are also disclosed.
Claims18
A method for reducing the difficulty of locating a hidden security feature on a substrate by a trusted party, comprising:
- printing the hidden security feature on the substrate;
- and
- printing a fiduciary marker on the substrate, the fiduciary marker encoding information about the location of the hidden security feature.
A method of verifying the authenticity of a document, comprising:
- locating a fiduciary marker on the document, the fiduciary marker encoding information, wherein the encoded information is supposed to disclose the location of a hidden security mark on the document;
- and
- decoding the information encoded in the fiduciary marker to determine whether the encoded information actually provides location information.
An document with enhanced security, comprising:
- a hidden security feature;
- and
- a fiduciary marker encoded with information about the location of the hidden security feature.
Dependencies are inferred from the claim text.