Methods and apparatus for providing touch-sensitive input in multiple degrees of freedom
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United States of America Patent
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Jul 22, 2003
Issued Date -
N/A
app pub date -
Dec 16, 1998
filing date -
Nov 26, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a multiple coordinate controller device having a three-dimensional body with a first surface portion and a second surface portion where the second surface portion is not coplanar with the first surface. A first transducer with a first sensing surface is coupled to the first surface portion of the body and capable of detecting both positions and a range of pressure forces at positions on the first sensing surface. The first transducer is further capable of providing a first range of z coordinates at a detected x,y coordinate in response to the range of pressure forces on said first sensing surface. A second transducer having a second sensing surface is coupled to the second surface portion of the body and capable of detecting both positions and a range of pressure forces at the positions on the second sensing surface. The second transducer is further capable of providing a second range of z coordinates of opposite polarity to the first range of z coordinates in response to the range of forces on second sensing surface.
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