Image scanning correction device for flat screen CRT

摘要

The correction device provides vertical and horizontal scanning correction using a vertical sawtooth generator and image scanning correction circuit (10). These create vertical sawtooth and scanning corrections signals for a picture screen device. There is a horizontal image scanning correction circuit (20) for creating a horizontal scan correction signal for correcting the horizontal picture dimension. Both circuits are coupled together so that the horizontal image scanning correction circuit receives the vertical sawtooth, the image scanning correction signal (17) and the vertical position control signal (25), for corresponding control of the horizontal scanning correction signal.