Patent ID: 7900841

Claim:
A shopping system comprising: a product item having an interface surface, said interface surface having disposed thereon coded data which includes, at a plurality of locations on the interface surface, a corresponding plurality of coded data portions, each coded data portion being indicative of an identity of the product item and the location of the coded data portion; and a reading device adapted to read the coded data disposed on the interface surface, the reading device including: (a) a radiation source for emitting radiation such that it exposes at least one coded data portion; (b) an image sensor for sensing the at least one exposed coded data portion; (c) at least one force sensor coupled to a nib of the reading device; and (d) a processor for determining, using at least some of the sensed coded data: product identity data indicative of the identity of the product item; and position data indicative of the position of the sensed coded data portion on the interface surface and/or a position of the reading device relative to the interface surface, wherein the reading device is adapted to sense coded data in response to contact between the nib and the interface surface.