Anticounterfeit card-sensing mechanism

Details Anticounterfeit card-sensing mechanism Anticounterfeit card-sensing mechanism

1985-05-08

1988-02-02

Pitts, Harold I.

Registers

Coded record sensors

Particular sensor structure

235436, 235454, 235493, G06K 708

Patent

active

047230711

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.

REFERENCES:
patent: 4304992 (1981-12-01), Kobayashi
patent: 4423415 (1983-12-01), Goldman
patent: 4476507 (1984-10-01), Koike
patent: 4574190 (1986-03-01), Nishimura
patent: 4585929 (1986-04-01), Brown
patent: 4591937 (1986-05-01), Nakarai

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