One dimensional and three dimensional extensions of the slide pad
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United States of America Patent
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Nov 10, 2009
Grant Date -
Aug 10, 2006
app pub date -
Feb 4, 2005
filing date -
Feb 4, 2005
priority date (Note) -
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Abstract
In one embodiment of the invention, a method for providing three-dimensional motion inputs to a device includes measuring characteristics (e.g., capacitances) between sense electrodes and a reference electrode on a movable pad, determining three-dimensional displacements of the movable pad from the capacitances, determining the three-dimensional motion inputs from the three-dimensional displacements of the movable pad, and providing the three-dimensional motion inputs to the device.In another embodiment of the invention, a pointing device mounted on a surface of a host device includes sense electrodes, a frame, a movable pad flexibly mounted in an opening of the frame. The movable pad includes a reference electrode opposite the sense electrodes. The opening limits the motion of the movable pad to a single axis on the surface and to an axis into the surface.
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