Method of authenticating a consumable
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United States of America Patent
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Sep 21, 2010
Grant Date -
Mar 15, 2007
app pub date -
Oct 31, 2006
filing date -
May 6, 2003
priority date (Note) -
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Abstract
A method of generating an authentication code for a consumable includes assigning an identification number to the consumable; processing an input including at least the identification number, using a first algorithm, to generate a preliminary number different from the identification number; and compressing the preliminary number using a compression algorithm, different from the first algorithm, that utilizes the identification number to generate an authentication value for use in authenticating the consumable.
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