Identification and protection of security documents
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 4, 2009
Grant Date -
May 22, 2008
app pub date -
Jul 3, 2007
filing date -
Jul 31, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides methods and systems that are helpful for authenticating or protecting physical and electronic documents like financial documents and identification documents. One claim recites a method including: receiving digital data corresponding to a physical document; transforming the digital data into a frequency domain; comparing characteristics associated with the transformed digital data to predetermined characteristics that are associated with a first document type, and if the characteristics coincide, determining that the physical document is of the first document type; and if the characteristics do not coincide, comparing the characteristics of the transformed digital data to predetermined characteristics that are associated with a second document type, and if the characteristics coincide, determining that the physical document is of the second document type. Of course, other claims and combinations are provided as well.
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