| 摘要 |
<p>The proposed pulse shaper for producing pulses controlling the formation of a discrete raster on the screen of a cathode ray tube comprises: a pulse shaper unit which produces pulses corresponding to the position of the electron beam on the screen of the cathode ray tube; a video signal generator unit; a unit for determining line parity; a delay unit for the pulses corresponding to the position of the electron beam on the screen of the cathode ray tube; and a switch. The output of the pulse shaper unit is connected to the first input of the switch, the input of the line parity determining unit and the input of the pulse delay unit whose output is connected to the second input of the switch. The output of the line parity determining unit is connected to the third input of the switch whose output is connected to the input of the video signal generator. The signal delay unit takes the form of a pulse inverter. The switch and the pulse delay unit take the form of an EXCLUSIVE-OR logic element.</p> |
