| 摘要 |
PURPOSE:To obtain high picture quality by selecting the output signal of a frame memory as a signal to previously execute YC separation at a comb line filter circuit and to be the reference of another signal for an animation when a non-standard signal is inputted. CONSTITUTION:When the non-standard signal is inputted, a synchronizing signal generating circuit 3 generates a clock phase-locked into a horizontal synchronizing signal instead of a burst signal, and switching circuits 5 and 6 select the signal to execute intra-field YC separating processing for an inputted television signal and output the selected signal. When the signal for the animation is to be processed, the input signal of a first intra-field processing circuit to execute the YC separation is made into the output signals of delay circuits 8 and 26, and the signal inputted to a second intra-field processing circuit to generate an interpolation scanning line is made into the output signals of second change-over circuits 12 and 29. A signal for a still picture is generated using the output signals of the change-over circuits 12 and 29 and signals obtained by delaying the above-mentioned output signals at delay circuits 16 and 30. Thus, unnaturalness in the movement of a picture caused by the dislocation between the center of gravity of the still picture and that of the animation can be eliminated, and processing for obtaining the high picture quality can be executed even for the non-standard signal. |
