A video display system includes a television monitor 1, a display generator 2, a display memory 3, a processor 4, and a main memory 13. The main memory 13 stores pages of text and pictures which can be selected for display. When a page is selected, the processor 4 controls its transfer from the main...http://www.google.de/patents/US4649380?utm_source=gb-gplus-sharePatent US4649380 - Video display system comprising an index store for storing reduced versions of pictures to be displayed