Magnetic card reader

Details Magnetic card reader Magnetic card reader

1997-02-25

1999-12-14

Hajec, Donald

Registers

Records

Magnetic

235449, G06K 1906, G06K 708

Patent

active

06000620&

ABSTRACT:
A reader (20) for a magnetic card for an automated teller machine (40) or other self-service financial terminal comprises a magnetic reading head (22), a wave shaper (26), and a data memory (28) to supply card-related data to a central authorization position. A wave shape monitor (30) is preset with a threshold amplitude, and detects the amplitude of analogue signals from the wave shaper; if the signals are readable but below the threshold level, the same magnetic reading head (22) or a different magnetic head (34) is instructed to rewrite the magnetic data on the card.

REFERENCES:
patent: 4812632 (1989-03-01), Kakinuma et al.
patent: 5388011 (1995-02-01), Tollum

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