Computer input device
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United States of America Patent
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Jan 10, 2006
Issued Date -
N/A
app pub date -
May 3, 2004
filing date -
Nov 3, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A computer input device used to input coordinates and three-dimensional graphical information into a computer. The device includes an acceleration sensor that has a fixed volume vessel containing a magnetic fluid. A non-magnetic inertial body is located in the magnetic fluid. Three magnetic field source are located on three perpendicular axes where each magnetic field source has an output for connection to a computer.
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