Patent ID: 8689086
Filing Date: 2014-04-01
Classification: H03M,H04L,H04N

Abstract:
1. A method of processing broadcast data in a transmitting system, the method comprising: Reed-Solomon (RS) and Cyclic Redundancy Check (CRC) encoding enhanced data bytes to build an RS frame; block processing data bytes in the built RS frame, wherein block processing the data bytes comprises: forming a data group including enhanced data corresponding to the data bytes converted from the interleaved data symbols, a plurality of known data sequences, and signaling information; deinterleaving the enhanced data in the data group; multiplexing the deinterleaved enhanced data with main data; interleaving the multiplexed data; and trellis encoding the interleaved data, wherein: encoding at the 1/2 coding rate is achieved by outputting a corresponding bit as a first output bit and outputting as a second output bit after encoding the corresponding bit; one data symbol consists of the first output bit and the second output bit; at least two of the plurality of known data sequences have different lengths; and the signaling information includes data group information.