determining when to return to a default touch scan rate for instance after a pre determined period of time has elapsed in which no touch events were detected touch sensor 120 may return to using a default touch scan rate to perform touch scan operations although the embodiment depicted in fig2 b is configured to reduce touch scan rates in response to video layers identified by compositor module 141 it should be appreciated that embodiments of the present invention are not limited to such configurations for example in one embodiment compositor module 141 may be configured to recognize surface layers associated with camera functionality for instance in one embodiment compositor module 141 may be configured to identify u201c live preview u201d windows from surfaces associated with camera playback fig2 c is a block level diagram of an exemplary touch scan rate adjustment process responsive to active system displays and or processes in accordance with embodiments of the present invention system activity manager 143 may be capable of tracking active displays windows and system processes on system 100 additionally system activity manager 143 may also be capable of communicating inputs received e g via touch sensor 120 to applications configured to receive them as such system activity manager 143 may be capable of recognizing active displays capable of receiving input through soft keyboard displays soft keyboard displays may be used to enable users e g users using conventional mobile devices to provide text within text enabled fields using an onscreen keyboard accordingly in.