Card transaction terminal

Details Card transaction terminal Card transaction terminal

1993-10-22

1994-11-08

Shepperd, John

Registers

Coded record sensors

Particular sensor structure

G06K 1306

Patent

active

053629523

ABSTRACT:
A low cost, easily-manufacturable circuit for a data card transaction terminal for reading a magnetic stripe on a data card. The circuit comprises a single, double-sided circuit board having minimized circuit components. The printed circuit board mounts an alphanumeric liquid crystal display (LCD) to a first side of the circuit board, a single chip LCD driver circuit, a bracket for extending through mounting holes in the circuit board and holding the liquid crystal display, keypad electrical contacts formed on the first side of the circuit board, and a plurality of circuit components all affixed to the second side of the circuit board. The circuit components affixed to the second side of the circuit board include a nonvolatile electrically erasable programmable read-only memory (EEPROM), a single chip modem circuit, data access arrangement circuitry for connecting the modem to an external telephone line, a magnetic stripe read head interface circuit, and a single chip microcomputer circuit including with internal mask-programmed read-only memory for storage of a software program. The circuit components include no memory components other than the EEPROM and memory internal to the single chip microcomputer.

REFERENCES:
patent: 4788420 (1988-11-01), Chang et al.
patent: 4980522 (1990-12-01), Murakami

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