Abstract: A method of distinguishing an intentional touch from an incidental touch on a touch sensor of a device includes detecting, via the touch sensor, a blob corresponding to a touch, determining a detected feature vector of the blob, comparing the detected feature vector of the blob to a plurality of previously-acquired feature vectors of a dictionary using a distance determination to find a distance between the detected feature vector and each of the plurality of previously-acquired feature vectors, when the touch is determined to be an intentional touch based on the distance between the detected feature vector and at least one of the plurality of previously-acquired feature vectors being within a threshold distance, then taking an action via the device based upon the touch, and when the touch is determined to be an incidental touch, then not taking the action.

Abstract: A stylus device includes circuitry that includes hardware and/or software for configuring a digitizer communication protocol for communicating with a digitizer of a host device. The stylus device communicates with the host device according to a device specified communication protocol. The protocol specification command is received during concurrent communication with the digitizer according to the first communication protocol and indicates a second communication protocol for communicating with the digitizer of the host device. The stylus device generates and transmits a signal to the digitizer of the host device according to the specified second communication protocol. The stylus device is configured to dynamically change communication protocols based on host protocol specification commands.

Abstract: A method of distinguishing an intentional touch from an incidental touch on a touch sensor of a device includes detecting, via the touch sensor, a blob corresponding to a touch, determining a detected feature vector of the blob, comparing the detected feature vector of the blob to a plurality of previously-acquired feature vectors of a dictionary using a distance determination to find a distance between the detected feature vector and each of the plurality of previously-acquired feature vectors, when the touch is determined to be an intentional touch based on the distance between the detected feature vector and at least one of the plurality of previously-acquired feature vectors being within a threshold distance, then taking an action via the device based upon the touch, and when the touch is determined to be an incidental touch, then not taking the action.