A hand operated optical character recognition system utilizes a one dimensional array of photo-sensitive elements divided into a plurality of groups, each group having at least one photo-sensitive element and defining a unit region to be scanned on a sheet bearing at least one row of characters to be...http://www.google.es/patents/US4104616?utm_source=gb-gplus-sharePatente US4104616 - Hand operated optical character recognition system
Hand operated optical character recognition system
