Low-power electromagnetic digitizer tablet

Details Low-power electromagnetic digitizer tablet Low-power electromagnetic digitizer tablet

G - Physics

06

F

354/236

G06F 3/033 (2006.01) G06F 3/03 (2006.01)

Patent

CA 2024001

ABSTRACT OF THE DISCLOSURE A low-power electromagnetic digitizer table employing triangular-shaped electrodes arrayed in a single plane. A point- ing device coil when energized induces signal voltages in the electrodes underneath. The electrodes are scanned in timed rela- tion, and the induced voltages digitized and compared to determine the X/Y coordinates of the pointing device with respect to the electrode array.

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