Patent ID: 6839053

Claim:
A method of enabling user information with computer software running in a computer system via: an interface surface containing information relating to the computer software and included coded data indicative of the position of a plurality of reference points on the interface surface; and a sensing device comprising: (a) an image sensor adapted to capture images of at least some of the coded data when the sensing device is placed in an operative position relative to the surface; and (b) a processor adapted to: (i) identify at least some of the coded data from at least one of the captured images; (ii) determine an orientation and position, within the captured images, of at least some of the coded data; (iii) decode at least some of the coded data; and (iv) generate, using at least some of the decoded coded data; indicating data indicative of a position of the sensing device relative to the interface surface; and at least one of movement data and position data, the movement data being indicative of the sensing device's movement relative to the interface surface, the position data being indicative of the sensing device's position relative to the interface surface; the method including the steps of, in the computer system: (a) receiving the indicating data from the sensing device; (b) receiving at least one of the movement data and the position data from the sensing device; (c) identifying a drawing field from the indicating data; (d) operating the computer software at least partly in reliance on at least one of the movement data and the position data, and in accordance with instructions associated with the drawing field; and (e) determining an identity of the interface surface from the indicating data.