Patent ID: 7495546

Claim:
A display system for use in displaying data in respect of usage of a device, the display system including: a detection system to detect an event that is indicative of usage of the device; and a display arranged to display data; the display system being arranged to invoke a selected display mode on the display in response to detection of the said event, the display mode being selectable by the display system from a set of a plurality of different display modes in dependence on an elapsed time between detection of the said event and a previous detection of said event, each of the different display modes identifying a different stage of elapsed time between detection of the pair of said events, wherein the display system is arranged to invoke a plurality of said display modes, each corresponding to a respective one in a sequence of a plurality of detections of said event comprising at least first, second and third detections of said event, and the elapsed time upon which the selection of each of the plurality of display modes is based is dependent on the elapsed time between the corresponding detection of said event in the sequence and a previous detection of said event in said sequence.