Patent ID: 9559807
Date: 2017-01-31
CPC Classifications: H03M,H04L,H04N

Claim:
1. A method for transmitting broadcast signals, the method comprising: encoding service data corresponding to each of data transmission units; encoding physical signaling data with a shortening scheme and a puncturing scheme; interleaving the encoded service data; building at least one signal frame including preamble data and the interleaved service data; modulating data of the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals carrying the modulated data of the at least one signal frame, wherein the preamble data of a current signal frame includes the encoded physical signaling data for the service data of the current signal frame, and wherein a part of parity data of the encoded physical signaling data for the service data of a next signal frame following the current signal frame is appended separately after the encoded physical signaling data for the service data of the current signal frame.