Patent ID: 9158422
Filing Date: 2015-10-13
Classification: B60K,G06F,G06T

Abstract:
1. A human machine interface comprising: a capacitive touch screen including a capacitive sensor, the capacitive touch screen being configured to display text characters and/or graphical information; and a control device rotatably coupled to a planar band extending across the screen such that the control device is superimposed over the screen, the control device including at least one electrically conductive element, the control device being configured to rotate 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 control device including a detent having a wave spring with two diametrically opposed legs, a respective said electrically conductive element being attached to a distal end of each of the legs; wherein the capacitive sensor is configured to sense a rotational position of the at least one electrically conductive element.