Patent ID: 7040455
Filing Date: 2006-05-09
Classification: A47F,G01G,G07G

Abstract:
1. A method of tracking items in a self-checkout terminal having a bar code scanner and a weight scale, comprising: scanning a first item with said bar code scanner so as to enter said first item into said self-checkout terminal; placing said first item on a product support platform of said weight scale after said scanning step; sensing a first distributed weight of said first item placed on said product support platform with a plurality of sensors and generating first distributed weight data in response thereto; generating first location data based on said first distributed weight data, said first location data being indicative of location on said product support platform of said first item; sensing a second distributed weight of a second item on said product support platform with said plurality of sensors and generating second distributed weight data in response thereto; generating second location data based on said second distributed weight data, said second location data being indicative of location on said product support platform from which said second item was removed; and in a case in which said second item has been removed from said product support platform, determining if said second location data and said first location data match.