Importance

Loading Importance Indicators...

Abstract

System for controlling the position and intensity of an electron beam in a display tube of a display unit in such a manner that both analog signals as well as alphanumeric characters can be made visible simultaneously on the screen of the display tube. The period necessary for displaying a complete picture on the screen of the display tube is divided in two successive sub periods, a first sub period in which a sawtooth shaped signal is supplied to the X-deflection means, a number of analog signals superimposed onto a staircase bias signal is supplied to the Y-deflection means, the number of sawtooth slopes in said sawtooth shaped signal being equal to said number of analog signals, and a line fligh back suppression signal is delivered to the Z-control means, and a second sub period in which a first further sawtooth shaped signal is supplied to the X-deflection means, a second further sawtooth shaped signal is supplied to the Y-deflection means and alphanumeric character control signals are supplied to the Z-control means.

Loading the Abstract Image...

First Claim