Methods and apparatus for determining local coordinate frames for a human hand
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United States of America Patent
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Oct 8, 2013
Grant Date -
May 23, 2013
app pub date -
Mar 22, 2011
filing date -
Mar 22, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and apparatus for providing a local coordinate frame are described. A user may place the tips of all five digits on a multitouch user interface with a natural gesture to provide five touch points. A local coordinate frame may be constructed from the touch points. A local coordinate frame may be computed relative to the entire hand and/or relative to each individual digit. The technique may be agnostic in regard to the orientation of the device and to which hand is used. The user may move or rotate their hand, and the local coordinate frame is adjusted to the new positioning relative to the device. The technique may also infer a relative position of the palm from the digit input points, allowing the display of user interface elements where the elements are visible rather than occluded by the hand.
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