At the time of a scrolling operation, the pointer coordinates (x, y) when moving the pointer on the display are detected and converted into the coordinates values (X, Y) of a whole image region on a memory by using coordinates conversion magnifications (K1, K2). An image in the display region...http://www.google.fr/patents/US5745098?utm_source=gb-gplus-shareBrevet US5745098 - Method and apparatus for scroll displaying an image on screen
Method and apparatus for scroll displaying an image on screen