Patent ID: 8103932
Filing Date: 2012-01-24
Classification: H03M,H04N

Abstract:
1. A digital television (DTV) receiving system for processing digital broadcast data, the DTV receiving system comprising: a tuner for receiving a broadcast signal comprising at least one data group, each of the at least one data group including a first data region and a second data region, wherein the first data region comprises first enhanced data encoded with a first encoding rate, known data sequences and signaling information, and wherein the second data region comprises second enhanced data encoded with a second encoding rate; a demodulator for demodulating the broadcast signal; an equalizer for compensating channel distortion of the demodulated broadcast signal based on at least one of the known data sequences; a first decoder for decoding the first enhanced data and the second enhanced data in the channel distortion compensated broadcast signal; a second decoder for detecting and correcting at least one error in a Reed-Solomon (RS) frame by Cyclic Redundancy Check (CRC)-RS decoding the RS frame, wherein the RS frame comprises an RS frame payload including the decoded enhanced data, RS parity data added at bottom ends of columns of the RS frame payload and CRC checksum data added at right ends of rows of the RS frame payload having the RS parity data; and a derandomizer for derandomizing the decoded enhanced data in the error corrected RS frame.