Ghost cancelling system

Details Ghost cancelling system Ghost cancelling system

H - Electricity

04

N

350/81

H04N 5/21 (2006.01)

Patent

CA 1154150

ABSTRACT OF THE DISCLOSURE A ghost cancelling system is disclosed which includes an input terminal applied with a video signal including a ghost signal component, a ghost can- celling circuit connected to the input terminal, the ghost cancelling circuit including a transversal filter, and an output terminal connected to the ghost cancelling circuit for deriving an output video signal in which the ghost signal component is substantially suppressed. In this case, the transversal filter comprises the combi- nation of a common delay circuit used for a signal delay circuit and for a demultiplexer circuit in time divisional manner, a memory circuit connected to the common delay circuit and activated when the common delay circuit is used for the demultiplexer circuit, and a weighting circuit connected between the memory circuit and the common delay circuit.

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