An automatic control system for directional control of an aircraft moving on the ground utilizing computer vision methods and camera sensing methods (visible, infrared or microwave) to optically recognize and track taxiway navigation features thereby providing pilot television picture steering cues or force inputs to the nosewheel steering system to maintain the aircraft on the centerline.

 
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> Determination of an orientation parameter of an elongate object with a scan beam apparatus

> Biologic electrode array with integrated optical detector
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