Methods and apparatus for coupling a host system to an image scanner in which high-level functions are migrated out of the scanner control module up to the attached host system. The host system and the scanner, via its control module, communicate using a low-level control instruction set. The low-level...http://www.google.de/patents/US6094689?utm_source=gb-gplus-sharePatent US6094689 - System for coupling a host computer to an image scanner in which high level functions are migrated to the attached host computer