Digital broadcasting transmission/reception system utilizing SRS and TRS code to improve receiving performance and signal processing method thereof

A method for processing a stream of a digital broadcast receiver, the method comprising:

• receiving a transport stream from a digital broadcast transmitter, the transport stream comprising data, a parity which is generated by encoding the data in a column direction, known data that is previously known between the digital broadcast transmitter and the digital broadcast receiver, and a Reed-Solomon (RS) parity of the data, and demodulating the received transport stream by using the known data to generate a demodulated transport stream;
• detecting a location of the known data from the demodulated transport stream;
• equalizing the demodulated transport stream by using the known data;
• and
• performing decoding on the transport stream,
• wherein the known data is different from payload data, the RS parity, a field sync and a segment sync,
• wherein the transport stream has been processed by initializing the internal memories of a Trellis encoder at a beginning location of the known data input to the Trellis encoder before the transport stream is received at the digital broadcast receiver, and
• wherein the transport stream has been further processed by regenerating an RS parity according to the initializing the internal memories so that the RS parity of the data is replaced with the regenerated RS parity.

A digital broadcast receiver comprising:

• a demodulator to demodulate a transport stream received from a digital broadcast transmitter, the transport stream comprising a sync signal and known data which is previously known between the digital broadcast transmitter and the digital broadcast receiver;
• an equalizer to equalize the demodulated transport stream using the known data;
• and
• a decoder to perform decoding the equalized transport stream,
• wherein the transport stream has been processed by adding a Reed Solomon (RS) parity thereto, and initializing internal memories of a Trellis encoder at a beginning of the known data input to the Trellis encoder, and
• wherein the transport stream has been further processed by regenerating an RS parity according to the initializing the internal memories so that the RS parity of the data is replaced with the regenerated RS parity.

A method for processing a stream of a digital broadcast receiver, the method comprising:

• demodulating a transport stream received from a digital broadcast transmitter, the transport stream comprising a sync signal and known data which is previously known between the digital broadcast transmitter and the digital broadcast receiver;
• equalizing the demodulated transport stream using the known data;
• and
• decoding the equalized transport stream,
• wherein the transport stream has been processed by adding a Reed Solomon (RS) parity thereto, and initializing internal memories of a Trellis encoder at a beginning of the known data input to the Trellis encoder, and
• wherein the transport stream has been further processed by regenerating an RS parity according to the initializing the internal memories so that the RS parity of the data is replaced with the regenerated RS parity.