DEFLECTING CIRCUIT DEVICE

摘要

PURPOSE:To facilitate the correction for both the screen size and the linearity for the TV camera, by securing the coincidence between the center of the video effective screen and the center of the saw-tooth and parabola wave signals. CONSTITUTION:Pulse formation circuits 4 and 6 which generate the deflecting driving pulse which is synchronized with the center of the blanking period. In addition to these circuits, integrating circuit 8 is provided to generate the saw- tooth wave signal via the formation output, along with integrating circuit 18 which generates the parabola wave output by integrating furthermore the integrating output of circuit 8. And then the coincidence is secured between the center of the video effective screen and the center of the saw-tooth and parabola wave signals.