Patent ID: 8457161

Claim:
A digital broadcasting receiver, comprising: a demodulator for receiving a transmission stream including a normal data stream and a supplementary data stream and demodulating the received transmission stream; an equalizer for equalizing the demodulated stream; and a turbo decoder for decoding the supplementary data stream from the equalized stream, wherein the transmission stream is processed by a digital broadcasting transmitter so that the stream is converted from a byte unit into a symbol unit, the byte-to-symbol converted stream is encoded and interleaved, the encoded and interleaved stream is re-converted from a symbol unit into a byte unit, and then, the re-converted stream is trellis-encoded by a trellis encoder, and wherein the trellis encoder initializes an internal memory using two symbols of the stream when a signal pattern which is previously known between the digital broadcasting transmitter and the digital broadcasting receiver is input to the trellis encoder.