Two-speed deflection systems for data displaying cathode ray tubes

Claim 1

A TWO-SPEED DEFLECTION DATA DISPLAYING CATHODE RAY TUBE ARRANGEMENT COMPRISING: A CATHODE RAY TUBE; A HIGH SPEED DEFECTING SYSTEM FOR SAID TUBE INCLUDING A HIGH FREQUENCY ELECTROMAGNETIC DEFLECTING COIL; A LOW SPEED DEFLECTING SYSTEM FOR SAID TUBE INCLUDING A LOW FREQUENCY ELECTROMAGNETIC DEFLECTING COIL SEPARATE FROM SAID HIGH FREQUENCY DEFECTING COIL; MEANS FOR SUPPLYING TO SAID HIGH SPEED DEFLECTING SYSTEM DEFLECTION SIGNALS CORRESPONDING TO DATA TO BE DISPLAYED; MEANS FOR SUPPLYING TO THE ROW SPEED DEFLECTING SYSTEM A RELATIVELY LOW FREQUENCY DEFLECTING WAVEFORM TO PRODUCE SUBSTANTIAL FULL DEFLECTION OF THE CATHODE RAY IN A PREDETERMINED DIRECTION; AND MEANS FOR SUPPLYING TO THE HIGH SPEED DEFLECTING SYSTEM, IN ADDITION TO SAID DEFLECTION SIGNALS CORRESPONDING TO DATA TO BE DISPLAYED, A RELATIVELY HIGH FREQUENCY DEFLECTION WAVEFORM HAVING TWO PORTIONS, ONE OF WHICH OPPOSES AND SUBSTANTIALLY COUNTERBALANCES, AND THE OTHER OF WHICH SUPPLEMENTS, THE RAY DEFLECTION IN SAID DIRECTION PRODUCED BY THE SAID RELATIVELY LOW FREQUENCY WAVEFORM, THE WHOLE ARRANGEMENT BEING SUCH THAT THE COMBINED EFFECT OF THE TWO WAVEFORMS IS TO CAUSE SAID RAY TO MOVE IN SAID PREDETERMINED DIRECTION IN A SERIES OF SHORT MOVEMENTS OCCURRING AT SUBSTANTIALLY THE SAME SPEED AND AT SUBSTANTIALLY THE SAME TIME INTERVALS.