Patent ID: 7188769

Claim:
A scanning device adapted to scan an interface surface provided on a product item, the interface surface having disposed thereon coded data indicative of an identity of the product item, the product item being provided in a sensing region, the scanning device including; (a) a beam generator for emitting at least one beam; (b) at least one rotating holographic optical element for selectively deflecting the beam in first and second orthogonal directions to thereby generate a raster scan pattern over a scanning patch; (c) a sensor for sensing at least some of the coded data on the interface surface of the product item as the product item passes trough the sensing region, the coded data disposed on the interface surface in accordance with at least one layout, the layout having at least order two rotational symmetry, the coded data including rotation-indicating data; (d) a processor for determining, using at least some of the sensed coded data, a respective rotation of the layout and product identity data indicative of the identity of the product item.