Cryptography – Electric signal modification – Having production of printed copy
Patent
1993-02-22
1994-12-06
Buczinski, Stephen C.
Cryptography
Electric signal modification
Having production of printed copy
283 72, 283 73, 283 82, 380 55, G09C 308, H04L 900, H04L 1534, B42D 1500
Patent
active
053717988
ABSTRACT:
A financial transaction document, such as a check, is manufactured by dividing the clear band of the document into two parallel portions. The first portion is printed with ferrous loaded ink to produce the standard MICE encoded financial information currently employed in such transaction documents. The second band, located either directly above or directly below the first band, has symbols printed with non-ferrous inks in specific locations. A system is employed to read the information in both bands, and to differentiate between properly printed documents, using the ferrous and non-ferrous printing in adjacent bands, from improperly printed documents which do not employ this printing technique.
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Buczinski Stephen C.
Ptak LaValle D.
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