Patent ID: 8249183
Filing Date: 2012-08-21
Classification: H03M,H04N

Abstract:
1. A digital television (DTV) transmitter comprising: a processor for encoding enhanced data for first error correction; a packet formatter for generating enhanced data packets including the encoded enhanced data and at least one known data sequence; a randomizer for randomizing the enhanced data packets; a Reed-Solomon (RS) encoder for RS coding the randomized enhanced data packets with a non-systematic RS encoding scheme for second error correction; a data interleaver for interleaving data of the RS-coded enhanced data packets; and a trellis encoder including one or more memories for trellis-encoding the interleaved data, wherein the one or more memories are initialized with initialization data at a beginning of the at least one known data sequence output from the data interleaver, and wherein the initialization data are determined based on previous values of the one or more memories included in the trellis encoder.