Patent ID: 6980704
Filing Date: 2005-12-27
Classification: B41J,B42C,B65H,G06F,G06K,H04N

Abstract:
1. A sensing device for sensing region identity data and generating at least one of movement data and position data when the sensing device is moved relative to a region of a surface, the region identity data being indicative of an identity of the region, the movement data being indicative of the movement of the sensing device relative to the region, the position data being indicative of the position of the sensing device relative to the region, the surface having disposed upon it coded data indicative of at least one region associated with the surface, the coded data comprising a plurality of substantially undifferentiated marks positioned relative to a set of predetermined nominal mark positions and the sensing device including: a region identity sensor configured to sense the region identity data using at least some of the coded data; a motion sensor configured to generate at least one of the movement data and the position data using at least some of the coded data; and a communicator configured to communicate the region identity data and at least one of the movement data and die position data to a computer system, wherein any 10 millimeter diameter subregion of die region includes sufficient coded data to identify the region.