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Title:
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A 2D FRACTIONALLY SPACED OUTPUT DFE FOR ANTI-COUNTERFEITING APPLICATIONS OF PRINTED MATRIX CODES |
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Author(s):
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Reinhold Günter, Stoyan Maleshliyski, Slavtcho Bonev |
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ISBN:
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978-972-8939-19-9 |
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Editors:
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Hans Weghorn, Jörg Roth and Pedro Isaías |
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Year:
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2010 |
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Edition:
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Single |
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Keywords:
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Anti-counterfeiting, security-printing, decision feedback equalizer, matrix code, DataMatrix, paper fingerprint. |
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Type:
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Short Paper |
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First Page:
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161 |
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Last Page:
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165 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Current anti-counterfeiting solutions for documents and packages use the individualities of the microscopic paper surface or the printing process. A combination of these kinds of fingerprints can be used by printing a specially designed not standardized matrix code. However many applications require the usage of standardized matrix codes e.g. DataMatrix. Problematic for the extraction of the fingerprint is the fact that the individualities of these codes are usually smaller than the size of their symbols. This paper presents a new algorithm to extract a practically unique fingerprint from any printed matrix code. To this end decision feedback equalizers are enhanced to supply an output with higher resolution. This fractionally spaced output decision feedback equalizer (FSO-DFE) is applied to DataMatrix and the first results are presented. |
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