Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 13, 2015
Patent Application Number
13715330
Date Filed
December 14, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
A human machine interface includes a capacitive touch screen having a capacitive sensor. The capacitive touch screen displays text characters and/or graphical information. A control device is rotatably coupled to a structure such that the control device is superimposed over the screen. The control device includes at least one electrically conductive element. The control device rotates about an axis substantially perpendicular to the screen such that the at least one electrically conductive element follows the rotation of the control device. The capacitive sensor senses a rotational position of the at least one electrically conductive element.
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