DIGITAL BROADCAST TRANSMITTING AND RECEIVING SYSTEM HAVING AN IMPROVED RECEIVING PERFORMANCE AND SIGNAL PROCESSING METHOD THEREOF

摘要

A digital broadcast transmitter comprises a Reed-Solomon (RS) encoder to encode a data stream into which known data commonly known between a digital broadcast receiver and the digital broadcast transmitter are inserted. The transmitter includes an interleaver to interleave the encoded data stream and a Trellis encoder to perform Trellis encoding on the data stream using internal memories. The Trellis encoder resets the internal memories before the Trellis encoding is performed on the known data according to a control signal to control Trellis resetting.