System and method for measuring individual force in multi-object sensing
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United States of America Patent
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Oct 29, 2013
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app pub date -
Dec 14, 2009
filing date -
Dec 14, 2009
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Abstract
An input device is provided that facilitates improved user interface functionality by determining force information for each of multiple objects in a sensing region. The input device includes a processing system, a sensor configured to sense objects in a sensing region proximate a surface, and a plurality of force sensors. The plurality of force sensors are coupled to the surface to provide a plurality of measures of force applied to the surface. The processing system is configured to determine positional information for each the multiple objects sensed by the sensor in the sensing region. Furthermore, the processing system is configured to determine force information for each of the multiple objects from the positional information and the plurality of measures of force applied to the surface. Thus, device and method provides the ability to determine both positional information and force information for each of multiple objects in a sensing region.
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