Patent ID: 8107548

Claim:
A digital broadcast receiver configured to receive a signal from a digital transmitter, the digital broadcast receiver comprising: a tuner configured to receive the signal transmitted by the digital transmitter, wherein the received signal includes known data at a specified position in data, the known data being a predefined sequence known between the digital transmitter and the digital broadcast receiver, the data including the known data being encoded to be added a parity of specified bytes thereto, the encoded data being interleaved, the interleaved data including a data format that same bytes of the known data inserted into respective segments are outputted for a specified length of bytes in one segment for every predetermined segment, the interleaved data being trellis encoded to an 8-level symbol at a rate of ⅔, and the trellis encoded data being VSB modulated, the signal having the trellis encoded symbol corresponding to the known data; a demodulator performing a VSB demodulation of the received signal, which was modulated by a modulator of the transmitter; and an equalizer removing an interference of the demodulated signal according to the trellis encoded symbol corresponding to the known data by compensating for a channel distortion of the demodulated signal due to a multi-path of a channel.