Methods for controlling one or more positioning actuators and devices thereof
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United States of America Patent
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Jun 18, 2013
Grant Date -
Jan 26, 2012
app pub date -
Jul 20, 2010
filing date -
Jul 20, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A method, computer readable medium, and apparatus for controlling a moveable element includes generating and providing with a control device one or more driving signals to one or more positioning actuators to move the moveable element towards a target position based on a target travel distance and a calibration value. The control device determines when a post-movement position of the moveable element is outside of a tolerance range of the target position. The control device recalibrates the calibration value when the post-movement position is determined to be outside of the tolerance range. The control device repeats the generating, the determining, and the recalibrating as open loop steps until the post-movement position is within the tolerance range or until a limit, if any, on attempts is reached.
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