Magnetic card reader

Details Magnetic card reader Magnetic card reader

1979-02-15

1981-12-08

Kilgore, Robert M.

Registers

Coded record sensors

Particular sensor structure

235474, 235482, 235493, 360105, 360 2, G06K 708, G06K 7016, G06K 1306, H04N 718

Patent

active

043049923

ABSTRACT:
A sensor observes a timing track along a magnetic stripe on a magnetic card and detects change in the sliding speed of the magnetic card relative to the magnetic head as a timing signal, by which reading or writing of a data signal by the magnetic head is controlled. A corner of the timing track is removable to delay the timing signal and thereby control a read-only mode. The magnetic head is mounted centrally on a leafspring to follow bends in the card.

REFERENCES:
patent: 3700862 (1972-10-01), Snook et al.
patent: 3760164 (1973-09-01), Kral
patent: 3836753 (1974-09-01), Pass
patent: 3893182 (1975-07-01), Schmidt
patent: 3914789 (1975-10-01), Coker, Jr. et al.
patent: 4058843 (1977-11-01), Gyi
Transducer Mounting, Haughton & Hildebrand, IBM Tech. Disc. Bull., vol. 2, No. 3, Oct. 1959, 1 p.

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