Systems for processing printed data

摘要

A data processing unit including means for reducing original data or producing the data in coded form and for recording the same on photographic or magnetic media e.g. photographic film or disc or magnetic tape, scanning means for sensing the data recorded on the record media to produce electrical signals indicative of the reduced or coded data and means including decoding means where the original data is coded and responsive to the signals from the scanning means for reproducing the data on a static visual reading device e.g. an electrophoretic memory unit, in a legible form recognizable by a reader. The decoding means is responsive to address data signals from the scanning means to produce output signals indicative of the coded data in decoded form.