Universal electronic payment terminal base including memory card

Details Universal electronic payment terminal base including memory card Universal electronic payment terminal base including memory card

1988-03-01

1990-04-24

Psitos, Aristotelis M.

Registers

Coded record sensors

Particular sensor structure

235492, G06K 100

Patent

active

049202561

ABSTRACT:
A universal electronic payment terminal base comprising an application and transaction microprocessor (4), with its power supply source (8) and being capable of receiving information identifying memory card holders, and a reader (6) of these cards controlled by the microprocessor (4). The source (8) also serves for programming the cards and delivers a voltage at most equal to the smallest of the programming voltages required. Between the low weight source (8) and the reader (6) a voltage booster (51) is provided for boosting the voltage to a constant level higher than the largest of the programming voltages, and a step by step voltage dropper (53) controlled by a variable cyclic ratio pulse generator (36).

REFERENCES:
patent: 4277837 (1981-07-01), Stuckert
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patent: 4767920 (1988-08-01), Kitta et al.
patent: 4794236 (1988-12-01), Kawana et al.
B. McIvor: "Use of EEPROM Technology in Smart Card", Electro and Mini/Micro, Northeast (N.Y., Apr. 23-25, 1985).
Hunt, "Programmer Power Supply", Electronics & Wireless World, vol. 91, No. 1594 (Aug. 1985).
S. Hageman, "DC/dc Converter Powers EEPROMs": Electrical Design News, vol. 28, No. 2 (Jan. 1983).
"l'electronique de puissance les fonctions de base et leurs principales applications", by Guy Sequier.
"Integrated Electronis Analog and Digital Circuits and Systems", by Jacob Millman and Christos Halkias.

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