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US 9,282,215 B2Granted
Security mark with copyable and non-copyable elements
AssigneeXerox Corporation
InventorsEdward N. Chapman, Reiner Eschbach, Judith E. Stinehour
Life of this patent
Estimating the term…
Abstract
A document contains a security element that combines a correlation mark and microgloss mark so that foreground pixels of the correlation mark are printed in a toner of a first color, and pixels of the correlation mark overwrite portions of the correlation mark in a second color, but neither the first color nor the second color appear on areas that correspond to background pixels of the correlation mark.
Claims18
A method of embedding a plurality of security elements in a document, comprising, by a processor:
- identifying a first set of instructions for printing a correlation mark security element on a substrate, the correlation mark security element comprising a plurality of foreground pixels and a plurality of background pixels;
- creating a mask for printing the correlation mark security element on the substrate;
- identifying a second set of instructions for printing a microgloss security element on the substrate, the microgloss security element comprising a plurality of microgloss pixels to which toner will be applied at a plurality of thicknesses;
- mapping one or more instances of microgloss security element to one or more instances of the correlation mark element through the mask to yield a combined mark in which the toner of the microgloss security element will only be printed where the foreground pixels appear and not where the background pixels appear;
- and
- by a printing device, printing the combined mark on the substrate.
3 more elements
A system for printing a secure document, comprising:
- a processor;
- a printing device;
- a data storage facility containing programming instructions that, when executed by the processor, cause the processor to:
- identify a first set of instructions for printing a correlation mark security element on a substrate, the correlation mark security element comprising a plurality of foreground pixels and a plurality of background pixels,
- create a mask for printing the correlation mark security element on the substrate,
- identify a second set of instructions for printing a microgloss security element on the substrate, the microgloss security element comprising a plurality of microgloss pixels to which toner will be applied at a plurality of thicknesses, and
- mapping one or more instances of microgloss security element to one or more instances of the correlation mark element through the mask to yield a set of instructions to print combined mark in which the toner of the microgloss security element will only be printed by the printing device where the foreground pixels appear and not where the background pixels appear.
4 more elements
A document, comprising:
- a frame of a combined correlation mark and microgloss mark printed on a substrate, the frame comprising:
- foreground pixels of the correlation mark in a toner of a first color, wherein the first color is distinct from an area of the substrate on which background pixels of the correlation mark will appear;
- and
- pixels of the microgloss mark in a toner of a second color, over positions where both the microgloss mark and correlation mark appear on the substrate;
- wherein the background pixels of the correlation mark exhibit neither the first color nor the second color.
2 more elements
Dependencies are inferred from the claim text.