Patent ID: 7270266

Claim:
A shopping system comprising: a card for identifying a user to a computer system using a sensing device, the card having a first interface surface having disposed thereon or therein first coded data, the first coded data including a plurality of first coded data portions, each first coded data portion being indicative of an identity of the user; and a shopping receptacle having a shopping receptacle identity, the shopping receptacle comprising an optical sensing device adapted to: (a) sense at least one first coded data portion on the card; (b) sense second coded data on a second interface surface of a product item, said second coded data being indicative of a product identity and of a plurality of locations on the second interface surface; (c) generate first indicating data identifying the user identity using the sensed first coded data; (d) generate second indicating data using the sensed second coded data; and, (e) transfer the shopping receptacle identity data, the first indicating data and the second indicating data to the computer system, the computer system being responsive to the received data to perform an action, wherein the second indicating data is indicative of the product indentity and of at least one of: (i) a position of the sensed second coded data; (ii) a position of the sensing device relative to the second interface surface; (iii) an orientation of the sensed second coded data; and, (iv) an orientation of the sensing device relative to the second interface surface.