Patent ID: 8400065

Claim:
A portable electronic device comprising: a first casing; a second casing; a hinge assembly connecting the first casing to the second casing and enabling the device to alternate between an open configuration and a closed configuration; a primary display mounted in one of the first and second casings, wherein the primary display is visible when the device is in the open configuration and wherein the primary display is hidden when the device is in the closed configuration; a secondary display mounted in one of the first and second casings; a primary light sensor mounted in one of the first and second casings, wherein the primary light sensor is visible when the device is in the open configuration and wherein the primary light sensor is hidden when the device is in the closed configuration; a secondary light sensor mounted in one of the first and second casings; and a selector configured to: receive a first input indicative of the device being in the open configuration and a second input indicative of the device being in the closed configuration; select a light sensor signal from one of the primary light sensor and the secondary light sensor as a function of whether the device is in the open configuration or the closed configuration; and, output the light sensor signal.