Patent ID: 8009781
Filing Date: 2011-08-30
Classification: H03M,H04H,H04L,H04N,Y02D

Abstract:
1. A DTV receiver comprising: a tuner receiving a DTV signal during a burst time interval in which a data group is multiplexed with main data by cyclically supplying power to the tuner on the burst time interval, the data group including enhanced data, known data sequences and transmission parameter data, wherein the enhanced data results from a process comprising: a known data sequence detector detecting a position of at least one of the known data sequences in the data group in the DTV signal; 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.