A device for assisting a user to perform a transaction on a machine is described. The device receives data that specifies a transaction mode to use for processing an image and accesses a knowledge base to provide data to configure the device for the transaction mode, the data including data specific...http://www.google.de/patents/US7641108?utm_source=gb-gplus-sharePatent US7641108 - Device and method to assist user in conducting a transaction with a machine
