Dual picture video signal processsing circuit

摘要

A dual picture video signal processisng circuit performs a subpicture processisng after the Y/C separation when a composite video signal is supplied. When separate Y and C signals are supplied, the circuit performs the subpicture processing directly to the Y and C signals. By this feature the circuit automatically performs the subpicture processing both for the composite video signal and the separate Y and C signals for the subpicture, and deterioration of the picture quality of the subpicture is prevented.