user is interacting with a power consuming touchscreen display monitoring a speaker for detecting changes in characteristics that indicate user input is described above however other components could also be monitored in some embodiments the circuitry for monitoring the speaker may be shared with other functionality on the device to reduce any additional cost or size in the electronic device for example the circuitry for monitoring the speaker may be used for speaker protection in addition to detecting user input through the speaker thus the manners of receiving user input through a speaker or other monitored component as described above may have many advantages for an electronic device and particularly for a mobile device such as a mobile phone tablet laptop computer or portable entertainment device the schematic flow chart diagrams of fig1 fig7 and fig8 are generally set forth as a logical flow chart diagram as such the depicted order and labeled steps are indicative of aspects of the disclosed method other steps and methods may be conceived that are equivalent in function logic or effect to one or more steps or portions thereof of the illustrated method additionally the format and symbols employed are provided to explain the logical steps of the method and are understood not to limit the scope of the method although various arrow types and line types may be employed in the flow chart diagram they are understood not to limit the scope of the corresponding method indeed some arrows or other connectors may be used to indicate only the logical flow of the method.