State machine based tracking system for screen pointing control
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United States of America Patent
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Mar 5, 2019
Grant Date -
Feb 9, 2017
app pub date -
Aug 3, 2015
filing date -
Aug 3, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
Generally, this disclosure provides systems, devices, methods and computer readable media for state machine based pointing control. A method may include receiving a position estimate of a first location associated with a first portion of a pointing device and a position estimate of a second location associated with a second portion of the pointing device; calculating a vector from the estimated position of the first location to the estimated position of the second location; and resolving the vector into a first distance component (Dx) and a second distance component (Dy), the Dy component orthogonal to the Dx component. The method may further include tracking temporal changes of the Dx and Dy components; updating an interaction state based on a rate of change of the Dx and Dy components; and moving a cursor position on a display element screen based on the temporal change and the interaction state.
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