Sarnoff Corporation

Fu-Lung Hsueh

Alfred C Ipri

Roger Green Stewart

Michael Gillis Kane

Robin Mark Adrian Dawson

James Ya-Kong Hsu

A method and system for converting a plurality of input signals being indicative of a signal to be converted to a digital output including: setting a plurality of codes each being indicative of a corresponding reference level; and, for each one of the codes, converting the one code to a first analog signal, and summing the first analog signal with a first of the input signals to provide a first summed signal; complementing the one code to provide a complemented code, converting the complemented code to a second analog signal; summing the second analog signal with a second of the input signals to provide a second summed signal corresponding to the first summed signal. The corresponding first and second summed signals are compared to provide a comparison signal. At least a portion of the digital output is set according to the comparison signal.

Differential analog-to-digital converter

A LED pixel structure that reduces current nonuniformities and threshold voltage variations in a &ldquo;drive transistor&rdquo;of the pixel structure is disclosed. The LED pixel structure incorporates a current source for loading data into the pixel via a data line. Alternatively, an auto zero voltage is determined for the drive transistor prior to the loading of data.

Active matrix light emitting diode pixel structure and concomitant method

In an active matrix electroluminescent display, a pixel containing a electroluminescent cell and the switching electronics for the electroluminescent cell where said switching electronics contains two transistors, a low voltage MOS transistor and a high voltage MOS transistor. A low voltage transistor is controlled by signals on a data and a select line. When activated, the low voltage transistor activates the high voltage transistor by charging the gate of the high voltage transistor. The gate charge is stored between the gate electrode of the high voltage transistor and an electric field shield forming a pixel signal capacitor. The pixel signal capacitor is positioned within the layout of the pixel a distance from the drain of the high voltage MOS transistor.

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Cranbury, NJ, United States of America

Fu-Lung Hsueh