Anti-photographic/photocopy imaging process and product made by same
OwnerFredric T. Morelle, Ralph C. Wickerinventors
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Abstract
Several techniques to acquire a counterfeit proof security document. The invention includes improvements for use with non-replicable image line frequency techniques, as well as stand-along printing techniques, that exhibit electro-optical copy and photographic copy frustration characteristics such as experiences with use of color-graduated (tonally graded) substrates, blooming or flaring print patterns, pixel differentiation of discrete indicia and combinations of these with certain printing ink (or) varnish under/overcoat.
Claims13
A method for making an image-bearing document non-counterfeitable with respect to a copier which employs an electro-optical scanning and sampling copy protocol comprising:
- identifying the blind or non-sampled zones in said copy protocol;
- preparing a document substrate;
- and
- placing indicia which comprise at least one image onto said document substrate so as to fall into areas that are not sampled by said copy protocol when said image-bearing document is copied by said copier.
A method for making a document, bearing a pattern of image-defining indicia and which is counterfeit-proof by an electro-optical copier having a scanning-sampling copy protocol, said protocol defined by sampling zone repetition with blind zones therebetween, said method comprising identifying said blind zones by ascertaining a sampling zone pattern and thereby the blind zones disposed between samples thereof and printing on a suitable substrate indicia of at least one image so that said indicia fall within said blind zones of said copier copy protocol, effecting upon copying by the copier, a distortion/decimation of said image in color or feature.
A copier non-counterfeitable document comprising a substrate bearing thereon at least one image that is composed of lineate indicia which appear at lineation frequencies characteristic of a scanning-sampling copy protocol of said copier to effect registry with predetermined and positionally identified blind or non-copy zones of said copy protocol when said document is copied by said copier and thereby result in a copy which is ommissive and distorted in said image.
Dependencies are inferred from the claim text.