| 摘要 |
PURPOSE:To reduce the change in luminance and chroma, by correcting the tap with a digital value A/D converting an output signal of a transversal filter and making gain control after the ghost is removed. CONSTITUTION:An output TV signal from a transversal filter 11 is clamped at a clamp circuit 14 and A/D-converted and a digital signal is transferred to a memory 17 with a clock pulse from a timing pulse generating circuit 15. Ghost information from the digital value in the memory 17 is obtained at an operation circuit 16 to operate tap correction signal and to correct tap weight coefficient of the filter 11, and the gain of a TV signal after the rejection of ghost is controlled at a gain control circuit 12 through the output of the circuit 16. |
