Patent ID: 7933356
Filing Date: 2011-04-26
Classification: H03M,H04L,H04N

Abstract:
1. A digital television (DTV) transmitter comprising: a first encoder for generating a Reed-Solomon (RS) frame by adding RS parity data and cyclic redundancy check (CRC) data to enhanced data; a second encoder for encoding the enhanced data in the RS frame with an encoding rate of 1/H, wherein H≧2; a symbol interleaver for interleaving symbols corresponding to the encoded enhanced data, wherein the symbol interleaver interleaves the symbols using the following steps: a group formatter for mapping enhanced data corresponding to the interleaved symbols into a data group and adding known data sequences and signaling information into the data group; a trellis encoder for trellis encoding the data group; and a modulator for modulating a broadcast signal including the trellis-encoded data group.