POS terminal device

Details POS terminal device POS terminal device

1987-11-16

1989-08-22

Trafton, David L.

Registers

Systems controlled by data bearing records

Mechanized store

235438, 235462, 364404, G06K 1500

Patent

active

048598380

ABSTRACT:
To improve reliability of a POS (point of sales) terminal device, an internal memory umit is further provided in addition to two external memory units having PLU (price look-up) files. Therefore, even if two external memory units develop trouble simultaneously, data (price, name, linked commodity section data and so on) related to a sold commodity are all read from the internal memory unit, whenever a bar code of the commodity is read through a scanner, before implementing registration processing. The data related to the commodities in the internal memory unit are updated whenever registration processing is implemented in dependence upon the normal external memory unit.

REFERENCES:
patent: 4563739 (1986-01-01), Gerpheide et al.
patent: 4679154 (1987-07-01), Blanford
patent: 4757448 (1988-07-01), Takagi

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