Patent ID: 9069430
Filing Date: 2015-06-30
Classification: G06F

Abstract:
1. A method for enabling a tethered stylus to activate an inking function even if an inking switch has failed in an open mode or a closed mode, said method comprising: 1) providing a touch sensor and a tethered stylus that is detectable by the touch sensor; 2) providing touch sensor circuitry that receives input from the touch sensor and the tethered stylus and that determines a position of the tethered stylus in proximity of or in contact with the touch sensor; 3) providing an inking switch in the tethered stylus that can activate or deactivate an inking function; 4) activating the inking function when the inking switch is closed when the tethered stylus makes contact with the touch sensor, and deactivating the inking function when the tethered stylus is lifted off the touch sensor and the inking switch is opened; and 5) activating the inking function when the inking switch has failed by detecting when the tethered stylus has closed to within a Z threshold of the touch sensor, and deactivating the inking function when the tethered stylus has moved beyond the Z threshold.