| 摘要 |
PURPOSE:To display each line in a prescribed correct position, by storing digital signal data of a vertical deflecting signal of every line in a digital memory and reading data for every line at the display time. CONSTITUTION:Deflection data for correct vertical deflection of each of plural lines is stored preliminarily in a digital memory 50. In case of the deflection for actual picture display, a switch 55 is set to the R side to set the memory 50 to the read state, and a switch circuit 56 is connected to the side of an address counter 51. The counter 51 is reset by a vertical synchronizing signal V and counts a horizontal synchronizing signal H hereafter. That is, address data corresponding to each line is outputted from the counter 51 to address the memory 50. A digital signal of the line corresponding to address data from this counter 51 is outputted and is converted to an analog signal by a D/A converter 52 to obtain a deflection signal. Thus, a desired deflected waveform is obtained. |
