MODE CONTROL FOR AN ELECTRONIC DEVICE WITH TOUCH UI

摘要

An electronic device with a user interface that includes at least one touch sensitive component. The device has a sleep mode in which the touch sensitive component is disabled and an active mode in which the touch sensitive component is enabled. The device also has a transition mode in which the touch sensitive component is enabled. After a period of inactivity of the user interface in the active mode, the device changes to the transition mode and signals this to the user by a change in the look of the user interface, such as by dimming out the backlighting of the touch sensitive component. If the user interface subsequently remains inactive for a given period of time the device automatically changes to the sleep mode and disables the touch sensitive component of the user interface.