A bit-mapped graphics terminal capable of displaying graphs as well as text permits character and screen attributes to be controlled with minimal memory requirements, and is capable of operating as an interlaced display and as a non-interlaced display. A first memory stores a display bit map that defines...http://www.google.fr/patents/US4803476?utm_source=gb-gplus-shareBrevet US4803476 - Video terminal for use in graphics and alphanumeric applications
Video terminal for use in graphics and alphanumeric applications
