Patent ID: 7654454
Filing Date: 2010-02-02
Classification: G06F,G06K,G06Q,H04N

Abstract:
1. A method of maintaining a status of a product item, the product item including an associated interface surface, the method including, in a sensing device: (a) sensing at least one coded tag of a plurality of coded tags tiled across the interface surface, each coded tag encoding data on an identity of the product item and an identity of a region of the product item on which that coded tag is tiled, each coded tag having a structure which enables sensing and decoding of said encoded data at any orientation of the interface surface; (b) generating, using the sensed coded tag, indicating data indicative of the product item and region identities; and, (c) transferring the indicating data to a computer system, the computer system being responsive to the indicating data to update product status information stored in a data store based on the product item and region identities,