A cross-pulse generator is a circuit that can be used as a separate component or built into high-priced monitors for shifting the picture on a TV screen so that the horizontal and vertical pulses can be seen. These pulses are allowing adjustments to tracking and creating a stable picture.
A professional video monitor allows the user to shift horizontally to make the horizontal blanking period visible. The image can also be shifted vertically to make the vertical blanking interval visible. By shifting both the image horizontally and vertically at the same time, the monitor is known as a cross pulse or pulse cross monitor. A cross pulse display is a visual representation of the waveform monitor. It shows several of the signals that are created by the sync generator.