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Device and method for secure data updates in a self-checkout system

  • US 5,825,002 A
  • Filed: 09/05/1996
  • Issued: 10/20/1998
  • Est. Priority Date: 09/05/1996
  • Status: Expired due to Term
First Claim
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1. A method for updating a customer data file stored in a self-checkout central processing system with a session data record collected with one of a plurality of portable data collecting terminals, each of said terminals having a unique assigned identifier, said method comprising the steps of:

  • a) returning the portable data collecting terminal to a terminal receiver;

    b) communicating the assigned identifier of the portable data collecting terminal to the self-checkout central processing system;

    c) entering a customer authorization code on a data entry device coupled to the self-checkout central processing system after step (a);

    d) communicating the customer authorization code entered in step (c) to the self-checkout central processing system;

    e) confirming that the customer authorization code corresponds to the assigned identifier of the portable data collecting terminal; and

    f) updating customer data file with the session data record collected with the portable data collecting terminal if the customer code corresponds to the assigned identifier of the portable data collecting terminal.

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