Method for updating electronic program guide information and device thereof in a digital tv receiver

Abstract

A device for updating EPG information in a digital TV receiver having a first tuner and a second tuner while viewing a channel selected by the first tuner, including first and second IF modules each converting respective IF signals output from the first and second tuners depending upon the channel selections into respective baseband signals, and first and second channel decoders each converting respective output signals from the first and second tuners to respective channel signals so as to reconstruct respective data bit streams. The device further includes a first TS decoder to separate respective audio data, video data, and auxiliary data from said data bit stream reconstructed by the first channel decoder, a second TS decoder separating auxiliary data from the data bit stream reconstructed by the second channel decoder, a memory to store the EPG information, and a controller to update the memory with the auxiliary data separated by the second TS decoder from the data bit stream obtained through the other channels selected by the second tuner.