Method and apparatus for currency discrimination
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United States of America Patent
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Oct 13, 1998
Issued Date -
N/A
app pub date -
Sep 18, 1996
filing date -
Feb 5, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved method of generating a master pattern corresponding to given denomination for use in a discrimination system capable of discriminating among currency bills of different denominations. The master pattern is stored in a memory for subsequent comparison to a pattern generated from a bill under test. The method comprises the steps of generating a plurality of component patterns for a given denomination by scanning a genuine bill of the given denomination and generating a master pattern for the given denomination. The master pattern is derived from an average of the component patterns. The component patterns represent and approximate analog amplitude variations in characteristic information detected from a genuine bill during scanning. Each of the component patterns comprises a plurality of sample values. Each sample value is proportional to the detected characteristic information.
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