Patent ID: 7620568

Claim:
A retail terminal comprising: a processor; a memory in communication with said processor and containing program instructions operative to control said processor, said memory further storing a weight learning database (WLDB) containing a list of predetermined weights for items for sale; a scale in communication with said processor and operative to obtain a weight measurement of an item for sale placed on said scale; a means for determining the identification of the item, at the weight scale; a scan error indicator in communication with the processor; and a first radio frequency identification (RFID) tag antenna in communication with the processor, and focused on a bagging area of the terminal; the program instructions operative to control said processor to compare the stored and measured weights for the identified item and to actuate the first RFID antenna to verify the identification of the item if there is a perceived error in the weight of the item as measured by the scale, the program instructions further operative to control said processor to compare the item identification determined by the means for determining the identification of the item and by the first RFID antenna, the scan error indicator only being actuated if the comparison of the identification of the item raises a discrepancy.