Method and apparatus for determining document authenticity

1. Field of the Invention A method and apparatus for verifying the authenticity of a document relative to a previously programmed document are disclosed. The method provides a broadband light source; illuminates a document with the light source; collects reflected light; converts it into a correspon...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Smith, James E, Craven, Robert P. M, Vance, Kenneth E, Duhn, Curtis, Pertl, Franz A
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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