Registers – Systems controlled by data bearing records – Credit or identification card systems
Patent
1987-04-27
1990-05-15
Pitts, Harold I.
Registers
Systems controlled by data bearing records
Credit or identification card systems
235487, 235493, G06K 500
Patent
active
049260316
ABSTRACT:
A security document such as a credit card or the like carries an automatically, machine-sensed material adapted to generate reproducible signals unique to such document. The material is arranged randomly along a line-like track and sensed by a scanning head having a transverse sensing slot of much greater length than the track width, whereby reproducibility of the scanning signals is assured. A system for testing the authenticity of such documents includes sensing means for detecting the material of the line-like track and converting it into a corresponding electric signal and a comparator means in which the electric signal is tested as to its identify relative to a signal generated in the same manner during the previous sensing. The electric signal is derived from a verification characteristic of the card which may be intrinsic property of the card material.
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GAO Gesellschaft fur Automation und Organisation mbH
Koch Robert J.
Pitts Harold I.
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