DIGITAL TELEVISION RECEIVER WITH DIGITAL VIDEO PROCESSING CIRCUIT

摘要

A digital TV receiver includes an A/D converter circuit for converting an analog video signal to a digital video signal, a signal separator circuit for separating a digital chroma signal and a digital Y signal from the digital video signal, a colour killer circuit for gating the digital chroma signal to generate a gated C signal when burst components are containing in the digital chroma signal, and a processor circuit for digitally composing RGB signals from the digital Y signal and the gated C signal. The RGB signals are used as tricolour signals for a colour CRT. The digital Y signal is composed from a delayed digital video signal and a digital Y signal obtained by removing the digital chroma signal from the delayed digital video signal.