Patent ID: 7920622

Claim:
A digital broadcast receiver, comprising: a demodulator to demodulate an additional data stream if a transport stream (TS) comprising a normal data stream and the additional data stream is received; an equalizer to equalize the TS; a first processor to process the normal data stream of the TS and recover normal data; and a second processor to process the additional data stream of the TS and recover additional data, wherein the second processor comprises: a turbo decoder to decode the additional data stream of the TS in order to correct errors in the additional data stream, a second deinterleaver to deinterleave the decoded additional data stream, a parity eliminator to remove a parity from the deinterleaved additional data stream, and a second derandomizer to derandomize the parity-removed additional data stream, wherein the normal data stream and the additional data stream are compressed in different compression formats, and the additional data stream is processed robustly.