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Transaction systems and methods sending product identification signals to two processors in each register station

  • US 6,456,980 B1
  • Filed: 11/23/1998
  • Issued: 09/24/2002
  • Est. Priority Date: 02/11/1997
  • Status: Expired due to Term
First Claim
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1. In a system including a store with a plurality of products, and a plurality of register stations, each including a bar code reader, and a first processing unit executing a first program in a first memory, wherein the system further includes a plurality of second processing units, each executing a second program in a second memory, each register station including a respective second processing unit, a method comprising the steps, performed multiple time for each register station to perform a checkout transaction for multiple customers, of:

  • using the bar code reader of a register station, to generate a first signal identifying a product selected by a customer;

    sending the first signal to the first processing unit of the register station;

    sending the first signal to a respective second processing unit in the plurality of second processing units;

    subsequently sending, from the respective second processing unit in the register station, a second signal to the first processing unit; and

    determining, in the first processing unit, a total amount due from the customer, by receiving the first signal and second signals.

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