Patent ID: 7043096
Filing Date: 2006-05-09
Classification: B41J,B42C,B65H,G06F,G06K,H04N

Abstract:
1. A sensing device comprising: a housing having a nib; and a position sensor, mounted in the housing, for generating position data when the nib is positioned in contact with a surface having coded data disposed therein or thereon, the coded data being indicative of a plurality of locations within a region and the position data being indicative of the position of the nib relative to the region, the position sensor comprising: imaging optics; an image sensor; and a processor, wherein the position sensor is configured to generate the position data by: capturing, using the image sensor and via the imaging optics, at least one image of at least some of the coded data in the vicinity of the nib; determining, using the processor and from at least the at least one image, data indicative of a rotation and position of the region relative to the imaging optics; determining, using the processor and from the data and a known relationship between the imaging optics and the nib, the position of the nib relative to the region; and generating, using the processor and from the position of the nib, the position data.