Patent ID: 8855239

Claim:
A digital broadcasting receiver, comprising: a demodulator for receiving a transport stream (TS) comprising an additional data and a normal data, and demodulating the received TS; an equalizer for equalizing the demodulated TS; a decoder decoding the equalized additional data; and an additional data processor for performing Reed-Solomon (RS) decoding on the additional data output from the decoder, wherein the decoder comprises a trellis decoder for trellis decoding the equalized additional data, a deinterleaver and interleaver for deinterleaving and interleaving the trellis decoded additional data, and a convolutional decoder for convolutional decoding the additional data without convolutional decoding the normal data, wherein the additional data is RS-encoded and trellis encoded after being convolutional-encoded and interleaved in a digital broadcasting transmitter, wherein the additional data processor performs the RS decoding on the additional data that is interleaved by the interleaver, and wherein the trellis decoder and the convolutional decoder exchange decoding reliability information with each other.