SYSTEMS AND METHODS FOR DETERMINING USER INPUT USING POSITION INFORMATION AND FORCE SENSING
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United States of America Patent
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Issued Date -
Oct 3, 2013
app pub date -
Sep 11, 2012
filing date -
Apr 2, 2012
priority date (Note) -
Abandoned
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Abstract
The embodiments described herein provide devices and methods that facilitate improved input device performance. Specifically, the devices and methods provide improved resistance to the effects of errors that may be caused by the motion of detected objects on such input devices, and in particular, to the effect of aliasing errors on input devices that use capacitive techniques to generate images of sensor values. The devices and methods provide improved resistance to the effects of aliasing errors by using force values indicative of force applied to the input surface. Specifically, the devices and methods use the force value to disambiguate determined position information for objects detected in the images of sensor values. This disambiguation of position information can lead to a reduction in the effects of aliasing errors and can thus improve the accuracy and usability of the input device.
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