Ghost signal cancelling apparatus

摘要

The input video signal including a ghost signal is supplied to a first transversal filter weighted by a first weighting signal. The output of the first transversal filter is supplied to a difference circuit to detect the ghost signal component which is supplied to a second transversal filter weighted by the second weighting signal derived from the input video signal. The output of the second transversal filter is supplied to a circuitry which includes a sign detecting circuit and a tap gain memory to produce the first weighting signal.