A common scanning unit is utilized in an optical character reader which reads both alphanumeric and bar code characters. An N column by M row area photosensor detects both the alphanumeric and bar code signals. The system detects which type of character is being read and then outputs the identity of...http://www.google.es/patents/US4408344?utm_source=gb-gplus-sharePatente US4408344 - OCR and Bar code reader using multi port matrix array
OCR and Bar code reader using multi port matrix array
