Patent ID: 8144788
Filing Date: 2012-03-27
Classification: H04N

Abstract:
1. A digital television (DTV) transmitting system for processing broadcast data, the DTV transmitting system comprising: a randomizer configured to randomize enhanced data; a Reed-Solomon (RS) frame encoder configured to perform RS encoding and Cyclic Redundancy Check (CRC) encoding on the randomized enhanced data; a block processor configured to code the RS-CRC encoded enhanced data at a coding rate of 1/N, wherein N is greater than 1; a group formatting unit configured to form a first data group including the enhanced data coded with the coding rate of 1/N, known data sequences and signaling information and to deinterleave data of the first data group; a multiplexer configured to multiplex enhanced data packets including the deinterleaved data with main data packets including main data; and an interleaver configured to interleave data of the multiplexed data packets to output a second data group comprising first, second and third regions, the second region being positioned between the first and third regions, wherein the first and third regions include main data, RS parity data and enhanced data, and the second region includes enhanced data, known data sequences, signaling information and RS parity data, but no main data.