Patent ID: 8369462

Claim:
A digital television (DTV) receiver comprising: a tuner receiving a DTV signal including enhanced data during a burst time interval by cyclically supplying power to the tuner on the burst time interval, wherein the enhanced data results from a process comprising: performing first error correction encoding on the enhanced data, forming a data group including the first error correction encoded enhanced data, known data sequences and transmission parameter data, wherein the transmission parameter data is inserted in a predetermined place in the data group, and outputting enhanced data packets including data in the data group, multiplexing the outputted enhanced data packets with main data packets including main data, performing systematic Reed-Solomon (RS) coding when a main data packet is input, and performing non-systematic RS coding when an enhanced data packet is input, interleaving the systematic/non-systematic RS coded data, and trellis-encoding the interleaved data at a trellis encoder, wherein the trellis encoder includes a memory which is initialized at a start of at least one of the known data sequences; a demodulator performing carrier recovery based on at least one of the known data sequences in the data group of the DTV signal; a channel equalizer channel-equalizing the DTV signal which the carrier recovery is performed on using at least one of the known data sequences in the data group of the DTV signal; and a power controller supplying power to at least one of the tuner, the demodulator, and the channel equalizer, based on the transmission parameter data inserted in a predetermined place in the DTV signal.