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United States of America Patent
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Mar 15, 2005
Grant Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Mar 17, 1999
priority date (Note) -
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Abstract
The truth of a paper type to be examined is judged by measuring, with respect to each of true paper types previously prepared, a plurality of types of characteristic amounts by a plurality of types of sensors for each of a plurality of portions for examination previously determined, analyzing principal components on the basis of obtained results of the measurement, to find an equation of straight line corresponding to the predetermined principal component, and producing reference data composed of a value relating to the predetermined principal component for the portion for examination on the basis of the foundation of straight line.
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