DISPOSITIF DE COMMANDE DE DEFILEMENT DE DONNEES SUR UN ECRAN DE VISUALISATION

摘要

The controller incorporates variable speed of movement through the display memory to aid navigation. The movement control (7,8) incorporates timers (8) to increase the speed of movement as a function of the duration of activation of the file scanning controls. A supplementary acceleration key (35) may be incorporated to allow manual control of acceleration of movement through the file. The maximum speed may be limited to a single value, or may increase in proportion to the size of the file being scanned. When the acceleration key is released the speed passes progressively from the top speed to the minimum speed.