Method and Apparatus for Detecting Misidentification of Items Sold by Weight

摘要

A point of sale terminal that performs purchase transactions is presented. The point of sale terminal includes an optical code scanner and weigh scale device. The optical code scanner portion of the optical code scanner and weigh scale device continuously scans for an optical code while the weigh scale portion of the optical code scanner and weigh scale device weighs an item placed on the scale. When the point of sale terminal receives data for an optical code that is read during the time an item is being weighed, the point of sale terminal compares information from the optical code data to the identification data entered by an operator for the item being weighed. If the item information does not match, the point of sale terminal halts the current purchase transaction until a supervisor intervenes.

主权项

1. A computer implemented method for processing a purchase transaction performed by a point of sale terminal, the method comprising:
receiving stable weight data from the optical code scanner and weigh scale device wherein the stable weight data includes a stable weight for a first sold by weight item placed on the weigh scale portion of the optical code scanner and weigh scale device; receiving first optical code data for a first item from the optical code scanner and weigh scale device while the first sold by weight item is still on the weigh scale wherein the first optical code data includes information identifying a first optical code that is located on the first sold by weight item; receiving from an operator input device a first code identifying the first sold by weight item still on the weigh scale portion of the optical code scanner and weigh scale device; continuing the purchase transaction when the identity of the first item as determined by the first optical code data matches the identity of the first sold by weight item as determined by the first code; and requesting assistance from a supervisor when the identity of the first item as determined by the first optical code data fails to match the identity of the first sold by weight item as determined by the first code.