METHODS AND APPARATUS TO DETECT AN OPERATING STATE OF A DISPLAY BASED ON VISIBLE LIGHT
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United States of America Patent
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Issued Date -
Jun 21, 2012
app pub date -
Dec 21, 2010
filing date -
Dec 21, 2010
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Abandoned
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Abstract
Methods and apparatus to infer operating states of a display based on visible light are disclosed. An example device includes an optical receiver to be positioned with respect to a display to receive visible light from the display. The example device includes a sensor to measure a color and an intensity of the visible light received. The example device includes an operating state detector to analyze the measured intensity and color of the visible light detected by the sensor to generate an output indicative of an operating state of the display.
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