Patent ID: 7292875

Claim:
An electronic device operable in a first mode and a second mode, comprising: a) a first piece; b) a second piece moveable between an open position and a closed position with respect to the first piece; c) a processing circuit operable to control and switch operation of the electronic device between the first mode and the second mode; and d) an ambient light sensor operable to sense the position of the second piece with respect to the first piece and to signal the processing circuit to operate the electronic device in the first mode when the second piece is in an open position and in the second mode when the second piece is in the closed position wherein the first mode is selected from the group consisting of a deactivated mode, a standby mode, a reduced power consumption mode and a switched off mode, and the second mode is selected form the group consisting of a normal mode, an activated mode, an increased power consumption mode and a switched on mode.