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a registrierdokumentes powers through its microscopic grain and corresponding method
a registrierdokumentes powers through its microscopic grain and corresponding method
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机译：登记员通过其微观的权力和相应的方法
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摘要
Record document 10 may be authenticated against reference grain data obtained from the document at a prior time. The body of the document is formed by base medium 12 bearing the record entries such as text within record site 12T. Grain seal site 14 is located at a predetermined location within the base medium. The unique grain structure within the seal site are microscopic and function as a seal for authenticating the document. The seal site is initially scanned to provide a stream of reference data generated by the surface reflection of the grain structure. This reference grain data is stored in memory for future authentication use. The seal site is then currently scanned to generate a stream of current grain data for comparison to the reference grain data. IMAGE
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