A character generator with multidirectional scan and variable line and character (or symbol) size capability. Universality is implemented by producing a serial binary stram which can be used to print or display in any of eight combinations of scan direction and progression, that is, for scan direction...http://www.google.fr/patents/US4841453?utm_source=gb-gplus-shareBrevet US4841453 - Multidirectional scan and print capability