Patent ID: 8855237

Claim:
A digital broadcasting receiver comprising: a decoder for decoding additional data comprised in a transport stream (TS) comprising normal data and the additional data; and an additional data processor for performing Reed-Solomon (RS) decoding on the decoded additional data, wherein the decoder includes a trellis decoder for trellis decoding the additional data, a deinterleaver for deinterleaving the additional data, a convolutional decoder for convolutional decoding the deinterleaved additional data without convolutional decoding the normal data, and an interleaver, 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 trellis decoded, deinterleaved, convolutional decoded, and interleaved at the decoder, and wherein the trellis decoder and the convolutional decoder exchange decoding reliability information with each other.