Image analysis – Applications
Reexamination Certificate
2006-04-11
2006-04-11
Johns, Andrew W. (Department: 2621)
Image analysis
Applications
C283S072000
Reexamination Certificate
active
07027613
ABSTRACT:
The invention relates to a digital security image, to be arranged on or in carrier, particularly a document, such as bonds or other documents the authenticity or origin of which is of importance, and having at least a first and second security characteristic visually almost imperceptibly incorporated in the digital security image, wherein the first security characteristic is detectably copied on a copy when copying the document and the second security characteristic is not copied onto said copy when copying the document, as well as a method for arranging and for detecting such a security element, as well as equipment for it. Additionally the invention relates to an image and an image in electronic form, provided with the security element according to the invention.
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patent: 5530772 (1996-06-01), Storey
patent: 5904375 (1999-05-01), Brugada
patent: 6108512 (2000-08-01), Hanna
patent: 6574350 (2003-06-01), Rhoads et al.
patent: 0691632 (1996-01-01), None
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patent: 2346110 (2000-08-01), None
patent: 9201701 (1994-05-01), None
patent: WO 95/27627 (1995-10-01), None
patent: WO 99/36876 (1999-07-01), None
Johns Andrew W.
Koninklijke Joh. Enschede B.V.
Ladas & Parry LLP
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