Card authorization apparatus

Details Card authorization apparatus Card authorization apparatus

1986-10-10

1988-06-14

Pitts, Harold I.

Registers

Systems controlled by data bearing records

Credit or identification card systems

G06K 500

Patent

active

047513748

ABSTRACT:
A master machine transmits a request for transmission of authorization data to a satellite machine when a mode key is set at a summation instructing mode. The master machine sums the authorization data received from the satellite machine and then designates a subsequent object machine upon receiving of a data transmission end command. When summation processing is completed with respect to all of the designated satellite machines, the master machine issues a summary report. When the mode key is set at an clearing instructing mode, the master machine outputs commands for clearing of the authorization data to the respective satellite machines.

REFERENCES:
patent: 4025760 (1977-05-01), Trenkamp

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