A data input device can be adapted for setting a data format establishing mode or a data inputting mode in which the input data are processed on the basis of the established data format. The data input device includes a keyboard for establishing the data format in the data format establishing mode and...http://www.google.de/patents/US4847762?utm_source=gb-gplus-sharePatent US4847762 - ECR having means for establishing a data format and processing entered data in accordance with an established data format
