Patent ID: 8867623

Claim:
A digital broadcast receiver, comprising: a reception unit receiving a transport stream (TS) which comprises known data and additional data from a digital broadcast transmitter; a turbo decoder performing turbo-decoding of the additional data included in the transport stream; and a processor performing Reed-Solomon (RS) decoding of the turbo-decoded additional data, wherein the TS further comprises normal data in addition to the known data and the additional data, wherein the known data is predetermined between the digital broadcast receiver and the digital broadcast transmitter, and is different from field sync data and segment sync data, wherein the TS is transmitted from the digital broadcasting transmitter comprising a Trellis encoder to initialize internal memories used for Trellis-encoding at a beginning of the known data and to perform Trellis-encoding of the known data by using the initialized internal memories and a parity generating unit to receive data altered according to the Trellis-encoding and to generate an RS parity corresponding to the altered data so that an RS parity corresponding to the data before being altered is replaced with the regenerated RS parity, and wherein the trellis encoder is initialized according to a control signal distinct from the transport stream.