Intercharacter gap detector for MICRS
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United States of America Patent
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-
Apr 26, 1983
Grant Date -
N/A
app pub date -
Oct 6, 1980
filing date -
Oct 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
System for determining whether magnetic ink is present on specific areas of a document bearing magnetic ink characters. Signals are produced as a magnetic read head passes over the area in question on the face of the document. These signals are routed to apparatus which operates in response to the signals by providing outputs of a first kind when magnetic ink is present and outputs of another kind when ink is not present or is not present in sufficient amount to produce a signal exceeding a threshold value. Logic means responsive to the signals of the first and second kinds establish the presence or absence of magnetic material.
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