Ronald K. Kerschner

Capacitive electrode system for detecting open solder joints in printed circuit assemblies

Electrical assembly testing using robotic positioning of probes

Board fixturing system

Automatic document presence, width and skew detection method and apparatus for a document scanner

Illumination system with white level calibration for hand-held scanner

Integrated board testing system

Line contact hand-held scanning device and method having a light path substantially perpendicular to the orientation of the object at a line portion

Illumination strobing in a scanner to improve image sharpness and power consumption

Multiple page sensor for automatic document feeder

Differential motor drive for an XY stage