DTV RECEIVING SYSTEM AND METHOD OF PROCESSING DTV SIGNAL

摘要

A digital television (DTV) receiving system includes a tuner, a demodulat or, a known data detector, an equalizer, a transmission detector, and a bloc k decoder. The tuner receives a DTV signal having a data frame in which main and mobile service data are multiplexed. The demodulator demodulates the DT V signal, and the known data detector detects known data included in the mob ile service data. The equalizer equalizes the demodulated DTV signal using t he detected known data, and the transmission parameter detector detects an e rror correction mode from the equalized DTV signal. Finally, the block decod er decodes the equalized DTV signal for error correction using the detected error correction mode.