DIGITAL BROADCAST TRANSMISSION AND RECEPTION APPARATUS AND METHODS FOR PROCESSING STREAM THEREOF

摘要

PURPOSE: A digital broadcast transmission and reception apparatus and method for processing stream thereof are provided to maintain the compatibility with an existing digital broadcasting transmission and reception system. CONSTITUTION: An SRS(Supplementary Reference Signal) unit(340) inserts an additional signal into a transport stream, and an RS(Reed-Solomon) encoding unit(350) performs an RS encoding operation of the transmission stream. An interleaving unit(360) interleaves the encoded transmission stream, and a trellis encoding unit(370) performs a trellis-encoding operation of the interleaved transmission stream. A compatible parity generating unit(380) generates parity according to an ignition operation of the trellis encoding unit.