A system for displaying text data includes a plural page memory and a flag memory, in which flags are set to identify the desired page data for display, and a flag controller and read-out controller operate so that when an erase code is included in the data the display is blanked but when the data includes...http://www.google.de/patents/US4631531?utm_source=gb-gplus-sharePatent US4631531 - System for text display with plural page memory and flag memory
