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Method and apparatus for determining whether a verbal message was spoken during a transaction at a point-of-sale terminal

  • US 6,567,787 B1
  • Filed: 08/17/1998
  • Issued: 05/20/2003
  • Est. Priority Date: 08/17/1998
  • Status: Expired due to Term
First Claim
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1. A method for determining whether a verbal message was spoken during a transaction at a point-of-sale terminal, comprising:

  • initiating a transaction at a point-of-sale terminal;

    transmitting a prompt to be spoken during the transaction;

    receiving an audio signal;

    determining whether the audio signal corresponds to the prompt;

    preventing a cash drawer from opening if the audio signal does not correspond to the prompt;

    receiving a customer audio signal from a customer;

    determining operator transaction information from the audio signal;

    determining customer transaction information from the customer audio signal; and

    determining whether the operator transaction information corresponds to the customer transaction information.

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