Patent ID: 8077798
Filing Date: 2011-12-13
Classification: H03M,H04L,H04N

Abstract:
1. A digital television (DTV) receiver for processing digital broadcast data, the DTV receiver comprising: a tuner for receiving a broadcast signal, wherein the broadcast signal is processed in a DTV transmitter by: randomizing enhanced data, generating a Reed-Solomon (RS) frame by adding RS parity data and cyclic redundancy check (CRC) data to the randomized enhanced data, encoding the enhanced data in the RS frame with an encoding rate of 1/H, wherein H≧2, interleaving symbols corresponding to the encoded enhanced data in a symbol interleaver, wherein the symbol interleaver interleaves the symbols by: mapping enhanced data corresponding to the interleaved symbols into data groups, wherein each data group further includes known data sequences, signaling information and moving picture experts group (MPEG) header place holders, deinterleaving the data groups, replacing the MPEG header place holders in the deinterleaved data groups with MPEG header data and outputting enhanced data packets, and interleaving the enhanced data packets; a demodulator for demodulating the received broadcast signal; an equalizer for compensating channel distortion of the demodulated broadcast signal using at least one of the known data sequences; a first decoder for turbo-decoding the enhanced data in the equalized broadcast signal; and a second decoder for CRC-decoding and RS-decoding the turbo-decoded enhanced data.