| 摘要 |
PURPOSE:To prevent the generation of a virtual signal when the line correlation of a color difference signal is disturbed by correcting a video signal where only an amplitude at a 1H is different from an amplitude before and after 1H close to the original video signal. CONSTITUTION:Reproduced color difference signals R-Y and B-Y extracted for time matching are applied respectively correcting circuits 17, 18 from a recording and reproducing device 16 for the purpose of correction, then a color difference before 2H is extracted at time t1. Further, a color difference signal at 5H adjacent to the virtual signal is extracted at time t2. Since this signal is replaced to the color difference after 1H of the color difference signal at high level, it cannot be a correct signal, but the signal is the same as a color of background in the reproducing screen, and the difference is not so much remarkable. |
