NVIDIA Corporation
TOUCH SENSOR CONFIGURATION FOR A RADIAL CAPACITIVE SLIDER

Abstract:

Radial capacitive sliders on touch enabled devices are physical end-effectors that provide a circular sliding control for a user to manipulate in order to provide input (e.g. menu and/or volume control) to the mobile device. They are traditionally configured to include a plurality of capacitive touch sensors that sense the user's contact with the radial capacitive slider, which is then signaled for use in determining an intended input of the user. The present disclosure provides a touch sensor configuration for radial capacitive sliders that requires less capacitive touch sensors than past configurations while still providing accurate touch sensing to enable correct response by the mobile device.