Patent ID: 8199852
Filing Date: 2012-06-12
Classification: H03M,H04L,H04N

Abstract:
1. A digital television (DTV) transmitter for processing digital broadcast data, the DTV transmitter comprising: a randomizer configured to randomize enhanced data; a first encoder configured to generate a Reed Solomon (RS) frame by adding RS parity data and cyclic redundancy check (CRC) data to the randomized enhanced data; a second encoder configured to encode the enhanced data in the RS frame with an encoding rate of 1/H, wherein H≧2; a symbol interleaver configured to interleave symbols corresponding to the encoded enhanced data, wherein the symbol interleaver interleaves the symbols by: a group formatter configured to map enhanced data corresponding to the interleaved symbols into data groups, wherein at least one of the data groups further includes known data sequences, signaling information and moving picture experts group (MPEG) header place holders; a deinterleaver configured to deinterleave data of the data groups; a packet formatter configured to replace the MPEG header place holders in the deinterleaved data with MPEG header data and output enhanced data packets; an interleaver configured to interleave data in the enhanced data packets; and a modulator configured to modulate a broadcast signal having the interleaved data.