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This paper presents a boost-type light-emitting-diode (LED) driver with an on-chip ambient light dimming for the liquid crystal display (LCD) backlight module in portable electronics. The proposed system integrates an ambient light sensor (ALS) to achieve the function of dimming control. By sensing the surrounding illumination, the LED driver automatically regulates the LED current, and, hence, the...
In recent years, CMOS image sensors (CISs) have increasingly become major players in the solid-state imaging market, a market in which charge-coupled device image sensors were once the dominant product. Exceptional circuit integration capability makes CMOS imagers suitable for implementation in a single-chip imaging system while inducing the temperature variation of an image sensor. In this paper,...
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