Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2007-10-29
2009-12-01
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S178000, C178S018030
Reexamination Certificate
active
07626577
ABSTRACT:
Calibration structure, method, and code for correcting non-orthogonal misalignment of a computer-generated image that is projected onto a large screen touch-detecting display, so that a computer-generated image appears substantially where the display is touched. Structure/method/code generates at least four calibration marks, respectively, substantially proximate four corners of a projected image to be displayed on the display. Structure/method/code, responsive to a touch on the large screen touch-detecting display where each of the four calibration marks is displayed, identifies horizontal and vertical coordinates of each touched location. Structure/method/code calibrates the projected image to the display after the four calibration marks have been touched. Structure/method/code, responsive to another touch on the display after calibration, displays a computer image substantially at the location of the another touch.
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Katten Muchin & Rosenman LLP
Nguyen Kevin M
SMART Technologies ULC
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