| 摘要 |
PURPOSE:To make the registration correction of a camera without distortion on the entire screen, by superimposing or modulating a horizontal scanning signal on a vertical deflecting signal and superimposing or modulating a vertical scanning signal on a horizontal deflection signal. CONSTITUTION:When a horizontal drive pulse signal 1 is inputted to a horizontal deflection first stage circuit 2, the output of the circuit 2, that is, each horizontal deflection signal of R, G, B, is inputted to horizontal direction trapezoidal distortion correcting circuits 20-22 corresponded. In the circuits 20-22, a vertical scanning signal is superimposed on each horizontal deflection signal of R, G, B for output. Each output deflection signal is fed to horizontal deflection coils 9-11 of the R, G, B through horizontal output stage circuits 3-5 to drive the coils 9-11 and to correct the trapezoidal distortion toward horizontal direction. Similarly, a vertical drive pulse input signal 12 inputted to a vertical deflection first stage circuit 13 is corrected for the trapezoidal distortion toward the vertical direction by superimposing a horizontal scanning signal to each vertical deflection signal of R, G, B. |
