Multiplex TV signal processing apparatus.

摘要

Disclosed are multiplex TV signal processing apparatuses in a television signal transmitting and receiving system; an apparatus at the transmitting side comprises: a first amplitude-modulator for modulating a first carrier by a main signal to obtain a vestigial side band amplitude-modulated main signal; a second amplitude-modulator for modulating a second carrier which frequency is the same as which phase is 90 degree different from the first carrier by a sub signal to obtain a carrier suppressed amplitude-modulated signal; a first inserter for inserting a first ghost canceling reference signal to a horizontal line of the main signal during vertical blanking period; a second inserter for inserting a second ghost canceling reference signal to the same horizontal line of the sub signal as the first ghost canceling reference signal; an apparatus at the receiving side comprises: a first demodulator for demodulating the main signal; a second demodulator for demodulating the sub signal; a ghost canceler for canceling ghost of the sub signal using the second ghost canceling reference signal; a crosstalk canceler for canceling the crosstalk of the sub signal from the main signal using the first ghost canceling reference signal. <IMAGE>