Credit card reader amplifier

Details Credit card reader amplifier Credit card reader amplifier

1975-08-04

1978-05-09

Kilgore, Robert M.

Registers

Coded record sensors

Particular sensor structure

235466, 360 43, G06K 708, G11B 509, G06K 710

Patent

active

040888797

ABSTRACT:
An amplifying device operative to sense changes in the speed of an encoded card as it is being read so as to be able to adjust the reading rate to compensateably follow said changes. The amplifying device is also able to differentially peak sense pulses read thereby disallowing noise transients.

REFERENCES:
patent: 3299271 (1967-01-01), Stites
patent: 3518648 (1970-06-01), Norris
patent: 3622758 (1971-11-01), Schanne
patent: 3711843 (1973-01-01), Galvagni
patent: 3751639 (1973-08-01), Searle
patent: 3763353 (1973-10-01), Nassimbene
patent: 3806706 (1974-04-01), Hasslinger

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