Touch and force sensing for input devices
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United States of America Patent
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Apr 16, 2013
Grant Date -
Dec 17, 2009
app pub date -
Jun 13, 2008
filing date -
Jun 13, 2008
priority date (Note) -
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Abstract
A device may include a first layer, a second layer, a third layer, a capacitive sensing component coupled to the first layer, and a force sensing component coupled to the first layer and the third layer and configured to detect the amount of force applied to the second layer. A method may include monitoring capacitance and voltage at one or more input sensors configured to detect changes in capacitance and to detect changes in applied force, detecting a change in capacitance, activating a capacitance response in response to detecting a change in capacitance, detecting a change in voltage, and activating a force response in response to detecting a change in voltage.
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