| 摘要 |
<p>PURPOSE:To provide video signal of an image having oblique components by a simple constitution by controlling a period when a luminance signal or a color signal is added to the video signal for each horizontal line. CONSTITUTION:When a vertical blanking period is terminated, vertical memories 1, 2 output values which change by a line cycle. At this time, if the output value V1j of the memory 1 is a1, b2, c1,... and the output value V2j of the memory 2 is a2, b2, c2,..., the output of an AND gate 7 becomes 'H', a switch 11 is turned on and the video signal that a luminance signal and a color signal are added to a synchronizing signal is outputted from an output terminal 12 for the period when the output Hi of a horizontal up down counter 4 becomes a1<=Hi<=a2, b1<=Hi<=b2, c1Hi<=c2. By properly setting the values of a1, b1, c1, a2, b2, c2, the display of each graphic including oblique components becomes possible.</p> |
