John A. Penkethman - Gilroy CA Robert A. Harrison - Morgan Hill CA Xiaoming Wang - San Jose CA Ning S. Chang - Sunnyvale CA Arye Green - San Jose CA
Assignee:
Electroglas, Inc. - Santa Clara CA
International Classification:
G06K 900
US Classification:
382141
Abstract:
An improved illumination method and apparatus for optical character recognition. A first light source is positioned such that light emitted from it strikes the surface at an angle of incidence. A detector is placed at the angle of reflection, such that specularly reflected light strikes the detector, providing bright field illumination. Additional light sources positioned at angles different from the first light source are disclosed to provide for high and low angle dark field illumination. Novel light guides which allow for a compact and economic system design are also disclosed. The disclosed system utilizes light sources and filters which greatly reduce the effect of environmental lighting on the optical character recognition process. A novel method to select the optimum light source and intensity is also disclosed.
Aati Nov 2006 - Mar 2008
General Manager
Integrated Memory Logic Nov 2006 - Mar 2008
General Manager
Analog Power Semiconductor Feb 2005 - Nov 2006
General Manager
Education:
Purdue University
Skills:
Gm China Semiconductor Analog Design Mnagement Analog Sales