DOCUMENT CAMERA, APPARATUS AND METHOD FOR ADJUSTING BRIGHTNESS
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United States of America Patent
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Issued Date -
Jun 16, 2011
app pub date -
Aug 28, 2010
filing date -
Dec 11, 2009
priority date (Note) -
Abandoned
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Abstract
A document camera, an apparatus and a method for adjusting brightness are disclosed, wherein the apparatus includes a light module, a sensor and a digital signal processor (DSP). The sensor can capture image data. The digital signal processor can process the image data and retrieve a brightness value from the processed image data, so as to adjust a light-emitting brightness of the light module according to the brightness value.
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