Invention Grant
US08866762B2 Method and apparatus for arbitrating among contiguous buttons on a capacitive touchscreen 有权
用于在电容式触摸屏上的相邻按钮之间进行仲裁的方法和装置

Method and apparatus for arbitrating among contiguous buttons on a capacitive touchscreen
Abstract:
Various embodiments of a capacitive touchscreen system and corresponding methods are described. A touchscreen controller is operably connected to a first plurality of drive electrodes, a second plurality of sense electrodes, and a host processor. The touchscreen controller has computer-readable button group programming instructions and data loaded into a first memory portion thereof from the host processor that comprise steps for sensing and arbitrating among touches occurring on and within a first plurality of buttons. Firmware instructions and data are loaded into a second portion of the memory of the touchscreen controller. The first plurality of buttons is arranged in a first group on the touchscreen, and the first group is located within a first portion of the touchscreen. Capacitive sensing of touches occurring on and within at least second portions of the touchscreen that are located outside the first portion of the touchscreen are controlled by the firmware instructions.
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