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Abstract

A currency identification system has at least two laterally displaced scanheads, one or more laterally moveable scanheads, or at least two laterally displaced sensors of a linear scanhead, the scanheads or sensors being positioned so as to permit scanning along at least two segments on a first side of a bill. The scanheads or sensors are capable of detecting characteristic information from the bill along the segments and generating corresponding output signals representing variations in the detected characteristic information from which scanned patterns of characteristic information may be generated. At least one scanned pattern is generated from the output signals, the at least one scanned pattern representing analog variations in the characteristic information along a segment of the bill. A memory stores at least one master pattern associated with each genuine bill which the system is capable of identifying, the at least one master pattern representing analog variations in characteristic information along a segment of an associated genuine bill. A signal processor performs a pattern comparison wherein at least one of the scanned patterns or portions thereof is compared with at least one of the master patterns or portions thereof; the signal processor generating an indication of the identity of a bill based on the pattern comparison when the bill is one that the system is capable of identifying.

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First Claim