Pointing device having rotational sensors
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United States of America Patent
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Sep 2, 2014
Grant Date -
Apr 10, 2008
app pub date -
Oct 4, 2006
filing date -
Oct 4, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A pointing device and method for providing both translational and rotational input to a computer, to manipulate graphical objects. In one embodiment, a pointing stick is cantilevered to a base. One or more translational sensors are coupled to the pointing stick to generate translational signals in response to lateral forces applied to the pointing stick. One or more rotational sensors are coupled to the pointing stick to generate rotational signals in response to rotational forces applied to the pointing stick. The rotational sensor may sense torque, such as with a piezoelectric sensor configured to detect rotational strain on a fixed pointing stick. The rotational sensor may alternatively sense rotational displacement, such as with a potentiometer configured to detect rotation of a rotatable sleeve about a fixed shaft.
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