GHOST ERASING CIRCUIT IN TV MONITOR

摘要

an antenna(52) for receiving TV signal; a tuner(53) for selecting TV channel; an RF demodulator(54) for demodulating RF signal and IF signal; an IF demodulator(55) for demodulating IF signal to the base band signal; a timing generator(56) for generating a clock signal from the base band signal; an A/D modulator(57) for modulating the base band analog signal to the digital signal; a line selector(58) for selecting a line into which a training signal is inserted which is demodulated in the demodulator; a cross- correlator(61) for correlating the reference signal and the training signal and producing a ghost channel; a ghost filter(62) for eliminating ghost pictures of TV signals to receive a filter coefficient value from the ghost channel; and a TV recever(63) for outputting the ghost-eliminated TV signals on the screen.