Patent ID: 8582682

Claim:
A digital broadcasting transmitter, comprising: a robust data pre-processor to process robust data to generate a robust data packet of a predetermined format; a Transport Stream (TS) stream generator to receive a normal data packet, including stuff bytes inserted in a certain location, and to insert the robust data packet at certain intervals to the normal data packets so that a dual TS stream of a certain format is generated; a randomizer to randomize the TS stream output from the TS stream generator; a stuff byte replacing part to replace the stuff bytes of the data output from the randomizer with a predetermined known data; a first Reed Solomon (RS) encoder to perform RS encoding of the data output from the stuff byte replacing part; an interleaver to interleave the data output from the first RS encoder; a symbol processor to code the robust data among the data output from the interleaver; a deinterleaver to deintervleave the data output from the symbol processor; a Trellis encoder to initialize memory at a beginning point of the known data among the data output from the first interleaver and to perform Trellis encoding; a parity deleting part to delete an RS parity from the data output from the deinterleaver; a second RS encoder to perform RS encoding of the data output from the parity deleting part; a reinterleaver to interleave the data output from the second RS encoder; and an RS output buffer to receive the known data from the beginning point of the data output from the second RS encoder and to temporarily store the known data.