Patent ID: 9240862
Filing Date: 2016-01-19
CPC Classification: H03M,H04H,H04L

Claim Text:
1. A method for transmitting broadcast signals, the method comprising: encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component for broadcast services; encoding signaling data, wherein a protection level of the signaling data is determined based on a variable size of the signaling data; padding zero bits to the encoded signaling data; LDPC encoding the zero padded signaling data by appending parity bits, wherein a size of the padded zero bits is related to the variable size of the signaling data; building signal frames, wherein each of signal frames includes the encoded service data and the LDPC encoded signaling data; modulating the signal frames by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals carrying the modulated signal frames.