Patent ID: 8555147
Filing Date: 2013-10-08
Classification: H04N

Abstract:
1. A method of processing a digital broadcast signal for transmitting the digital broadcast signal, the method comprising: Forward Error Correction (FEC) and Cyclic Redundancy Check (CRC) encoding enhanced service data to build at least one Reed-Solomon (RS) frame of the enhanced service data; block processing the enhanced service data in the at least one built RS frame, wherein the block processing comprises: forming a data group including the output data bytes of the enhanced service data, a plurality of known data sequences and place holder bytes for main service data, MPEG headers, and RS parity data; deinterleaving data in the data group; removing the place holder bytes for the main service data and the RS parity data from the data group in which the data are deinterleaved, replacing the place holder bytes for the MPEG headers in the data group, in which the data are deinterleaved, with the MPEG headers and outputting enhanced service data packets; interleaving data in the enhanced service data packets; and trellis encoding the interleaved data in a trellis encoding unit, wherein at least one memory in the trellis encoding unit is initialized at a start of each of the plurality of known data sequences.