Pager with automatically illuminated display.

摘要

A pager comprising a light sensor which is responsive to light externally illuminating the pager to generate a first signal when the sensed light is below a predetermined luminance value. The first signal is supplied to a coincidence gate which provides a coincidence output when it detects the coincidence of the first signal with a second signal that is generated when there is a message on a display. The coincidence output feeds a light source to illuminate the display to make it visible under poor lighting conditions.