Patent ID: 7885358
Filing Date: 2011-02-08
Classification: H03M,H04H,H04L,Y02D

Abstract:
1. A receiving system, comprising: a signal receiving unit for receiving a broadcast signal including a data group, the data group comprising mobile service data, transmission parameters related to the mobile service data, and a plurality of known data sequences; a known data detector for detecting the plurality of known data sequences from the data group, wherein at least two of the plurality of known data sequences have different lengths, wherein initialization data are positioned at a beginning portion of at least one known data sequence, and wherein the initialization data being used to initialize memories within a trellis encoder of a transmitting system are trellis-encoded; a transmission parameter decoder for decoding the received transmission parameters inserted between the plurality of known data sequences; an equalizer for compensating for channel distortion of the broadcast signal using at least one of the plurality of detected known data sequences; a first decoder for first decoding mobile service data in the channel distortion-compensated broadcast signal by block units based upon the decoded transmission parameters; a second decoder for building a Reed-Solomon (RS) frame by collecting the first-decoded mobile service data and correcting at least one error in the RS frame based upon the decoded transmission parameters, wherein the RS frame comprises an RS frame payload including the first-decoded mobile service data, RS parity data added at bottom ends of columns of the RS frame payload, and Cyclic Redundancy Check (CRC) data added at right ends of rows of the RS frame payload including the RS parity data; and a controller for controlling power supply of the receiving system to receive the data group including the mobile service data based on the decoded transmission parameters.