A method of electronically moving portions of several different images on a CRT screen includes the steps of: storing a first image in one section of an image memory, and storing a second image in a different section of the image memory; storing control bits in a control memory which define high and...http://www.google.de/patents/US4559533?utm_source=gb-gplus-sharePatent US4559533 - Method of electronically moving portions of several different images on a CRT screen
