Control device having multiple degrees of freedom
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United States of America Patent
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Jul 7, 1992
Grant Date -
N/A
app pub date -
Apr 12, 1990
filing date -
Apr 12, 1990
priority date (Note) -
Expired
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Abstract
A hand-held joystick has spaced-apart groups of accelerometers and is free to move or rotate on multiple axes. Each group has, for example, three mutually perpendicular accelerometers, with each one producing an electrical signal responsive to linear acceleration along one axis. The signals are combined to derive a definition of acceleration of the joystick along the three mutually perpendicular linear axes and/or rotation about these axes. The combined signal is used by an electrical control system which provides input to a device being controlled. The signal to the device under control is responsive to the motion of the joystick.
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