| 摘要 |
PURPOSE:To prevent the deterioration of color reproducibility and the generation of fixed pattern noises, by permitting the input of one color signal to 1H CCD delay line. CONSTITUTION:The color signals separated to G, R and B are applied to three 1H delay lines 45, 46 and 47 respectively to be delayed by 1H period respectively. Adder circuits 48, 49 and 50 are connected to the outputs of lines 45, 46 and 47 respectively, and these outputs are added with separating circuits 42 and 43 and 44. These added outputs are turned into color signals of 0.5MHz through LPFs 411, 412 and 413 and then applied to the next color difference signal synthesizing circuit 414 to be converted into two color difference signals R-Y and B-Y. A part of output signals of the circuits 42-44 are applied to a luminance signal synthesizing circuit 418 via three kinds of LPFs 415, 416, 417. A part of an adder circuit 48 is applied to the circuit 418 via a BPF419, and those above- mentioned signals are synthesized into luminance signals. |
