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Hand-drawing capture via interface surface and processing sensor

  • US 20030090462A1
  • Filed: 11/12/2002
  • Published: 05/15/2003
  • Est. Priority Date: 05/25/1999
  • Status: Active Grant
First Claim
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1. A method of enabling user interaction with computer software running in a computer system via:

  • an interface surface containing information relating to the computer software and including coded data indicative of a drawing field; 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 one or more of the captured images;

    (ii) determine an orientation, 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 the drawing field; 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 the drawing field from the indicating data; and

    (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.

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