APPARATUS OF REPEATING FOR TERRESTRIAL DTV BROADCASTING SIGNAL AND ADDITIONAL DATA TRANSMISSION AND METHOD THEROF

摘要

PURPOSE: An apparatus of repeating for transmitting a terrestrial DTV broadcasting signal and additional data and a method thereof are provided to relay additional data inserted into a DTV broadcasting signal. CONSTITUTION: An additional data extracting unit(508) extracts additional data from an output signal of an equalization unit, and outputs the extracted data. An adder(511) combines the DTV signal outputted from the equalization unit with the output of the additional data processing unit. A transmission processing unit modulates the added output, and converts the band of the modulated signal into an RF(Radio Frequency) band. The transmission processing unit amplifies the transmission poser, and amplifies the transmission power. The transmission processing unit transmits the amplified signal through a transmission antenna.