Abstract: A method includes determining a first output voltage of a battery of an electronic device. Based on the first output voltage, a first configuration file is identified. Touches on the touch-sensitive display are detected utilizing at least one parameter from the first configuration file.

Abstract: A method includes identifying a first plurality of drive frequencies at which drive electrodes of a touch-sensitive display of an electronic device are driven, wherein the first plurality of drive frequencies includes a first frequency and a second frequency. A first noise value at the first frequency is determined. When the first noise value meets a first threshold value and the first noise value is less than a second threshold value that is greater than the first threshold value, a second noise value at the second frequency is determined by the electronic device and, in response to determining that the second noise value is less than the first threshold value, driving the drive electrodes at the second frequency. When the first noise value meets the second threshold value, a third frequency at which the drive electrodes are driven is identified by the electronic device, wherein the third frequency is not one of the first plurality of drive frequencies.

Abstract: A stylus, configured for interactive use with a surface such as but not limited to a display, includes a stylus housing that supports a control circuit. The control circuit is configured to selectively effect at least two different non-passive location modalities wherein each of the non-passive location modalities imparts location-determination information. The plurality of non-passive location modalities can be selectively used in combination with one another or in a singular fashion as desired.

Abstract: A method includes identifying a first plurality of drive frequencies at which drive electrodes of a touch-sensitive display of an electronic device are driven, wherein the first plurality of drive frequencies includes a first frequency and a second frequency. A first noise value at the first frequency is determined. When the first noise value meets a first threshold value and the first noise value is less than a second threshold value that is greater than the first threshold value, a second noise value at the second frequency is determined by the electronic device and, in response to determining that the second noise value is less than the first threshold value, driving the drive electrodes at the second frequency. When the first noise value meets the second threshold value, a third frequency at which the drive electrodes are driven is identified by the electronic device, wherein the third frequency is not one of the first plurality of drive frequencies.

Abstract: A stylus includes a stylus housing that supports a control circuit. The control circuit is configured automatically compare data quality as corresponds to stylus location-determination information being provided by at least two different stylus-based candidate non-passive location modalities to thereby select a particular stylus-based non-passive location modality and to then use that particular stylus-based non-passive location modality when transmitting stylus location-determination information to a corresponding electronic device.

Abstract: A method includes determining a first output voltage of a battery of an electronic device. Based on the first output voltage, a first configuration file is identified. Touches on the touch-sensitive display are detected utilizing at least one parameter from the first configuration file.

Abstract: A stylus includes a wireless transmitter and a user sensor configured to detect a stylus-user's proximity (such as, for example, the proximity of the user's hand). A control circuit adjusts transmission power for the wireless transmitter as a function, at least in part, of the stylus-user's proximity.

Abstract: An apparatus has both a stylus sensor and a hand sensor. A control circuit operably couples to both of these sensors and is configured to predict movement of the stylus as a function, at least in part, of the hand sensor. So configured, both present and historical information regarding the location of the user's hand can serve to further inform a prediction algorithm of choice to more reliably (and more quickly) predict a likely direction of movement for the stylus in order to provide a corresponding display of electronic ink that exhibits reduced (or eliminated) latency. By one approach the influence of the hand-location information can be statically or dynamically weighted to shade the influence of the hand-location information upon the prediction result.

Abstract: An apparatus having a stylus scribing surface and a sensor configured to communicate with a stylus via a wireless communication path regarding a location of the stylus with respect to that stylus scribing surface also has a control circuit that operably couples to that sensor. The control circuit is configured to automatically test that wireless communication path for interference. In response to detecting an undue level of interference the control circuit instructs the stylus to modify the wireless communication path (for example, by switching to a different carrier frequency).

Abstract: An electronic device has a control circuit that receives first location-determination information from such a stylus as per a first location modality along with second location-determination information as per a second location modality, wherein the second location modality is different from the first location modality. This control circuit then uses the first location-determination information in combination with the second location-determination information to determine at least one of an angle of inclination of the stylus with respect to the aforementioned scribing surface and rotation of the stylus about a central longitudinal axis.

Abstract: A stylus includes a stylus housing that supports a control circuit. The control circuit is configured automatically compare data quality as corresponds to stylus location-determination information being provided by at least two different stylus-based candidate non-passive location modalities to thereby select a particular stylus-based non-passive location modality and to then use that particular stylus-based non-passive location modality when transmitting stylus location-determination information to a corresponding electronic device.

Abstract: A stylus, configured for interactive use with a surface such as but not limited to a display, includes a stylus housing that supports a control circuit. The control circuit is configured to selectively effect at least two different non-passive location modalities wherein each of the non-passive location modalities imparts location-determination information. The plurality of non-passive location modalities can be selectively used in combination with one another or in a singular fashion as desired.