Patent ID: 6753842
Filing Date: 2004-06-22
Classification: G09G,H04M,H04W,Y02D

Abstract:
A system for the control of backlighting in a wireless communication device, the system comprising:a housing; a receiver to receive communication signals from a location remote from the receiver, the communication signals including a location signal indicating the location of the wireless communication device and a time-of-day signal indicating the local time; a display supported by the housing; a photosensor element to sense an ambient light level and to generate an ambient light signal based on the ambient light level; a display light to light the display, the display light being selectively enabled by an enable signal; and a light controller to generate the enable signal and determine daylight hours based on the location signal, wherein the light controller generates the enable signal based on the ambient light signal, the time-of-day signal and the daylight hours determined based on the location signal.