Systems and methods for detecting and filtering unintentional touches on a trackpad

A computing device, comprising:

• one or more processors;
• a touch-sensitive surface coupled to the one or more processors;
• and
• memory storing processor-executable instructions that, when executed by the one or more processors, are to cause the one or more processors to perform:
• receiving capacitive signal data from the touch-sensitive surface that includes a trackpad region above which a virtual keyboard is displayed on the touch-sensitive surface, wherein a portion of the trackpad region includes a virtual trackpad button, and wherein the capacitive signal data indicates a touch event within the portion of the trackpad region corresponding to the virtual trackpad button;
• based on the touch event associated with the virtual trackpad button, buffering two or more frames of the capacitive signal data from the touch-sensitive surface;
• determining, from the buffered two or more frames of the capacitive signal data, whether the touch event is a button press, a gesture, or an unintentional touch;
• and
• in response to the determining, processing the touch event accordingly.

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors, are to configure the one or more processors to perform:

• receiving capacitive signal data from a touch-sensitive surface that includes a trackpad region above which a virtual keyboard is displayed on the touch-sensitive surface, wherein a portion of the trackpad region includes a virtual trackpad button, and wherein the capacitive signal data indicates a touch event within the portion of the trackpad region corresponding to the virtual trackpad button;
• based on the touch event associated with the virtual trackpad button, buffering two or more frames of the capacitive signal data from the touch-sensitive surface;
• determining, from the buffered two or more frames of the capacitive signal data, whether the touch event is a button press, a gesture, or an unintentional touch;
• and
• in response to the determining, processing the touch event accordingly.