Anticounterfeit card-sensing mechanism
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United States of America Patent
Stats
-
Feb 2, 1988
Grant Date -
N/A
app pub date -
May 8, 1985
filing date -
May 8, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A transducer apparatus for use with cards bearing a magnetic recording stripe and having an optically sensible anticounterfeit uniqueness characteristic, the apparatus including a sensor for the anticounterfeit characteristic which scans the card by a small discrete window of perception, pixel. The apparatus isolates predetermined areas of perception for the card, so as to verify on the basis of signals from a prior observation recorded by the magnetic stripe. Areas of perception, pixel size, are less than one sixty-fourth of a square inch. The magnetic sensing head of the apparatus is mounted with the anticounterfeit sensor to accommodate common resilient displacement with movement relative to a card.
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