Patent ID: 7590311
Filing Date: 2009-09-15
Classification: B41J,B42C,B65H,G06F,G06K,H04N

Abstract:
1. A sensing device for sensing a region provided on or in a surface, the surface including at least one region, having printed therein or thereon coded data indicative of an identity of the at least one region, and visible information at least some of the information being at least partially related to the at least one region, the coded data including a number of data portions, each data portion in the at least one region having an identical data portion identity, the sensing device including: a sensor for: sensing a number of images of the coded data when the sensing device is placed in an operative position relative to the at least one region; comparing the images to determine common features in sequential images; and determining movement of the sensing device relative to the at least one region by determining changes in position of the common features between the sequential images; and generating, using the sensed coded data, indicating data at least partially indicative of the identity of the at least one region; and, a communicator configured to communicate the indicating data to a computer system.