Patent ID: 9680506
Date: 2017-06-13
CPC Classifications: H03M,H04L,H04N

Claim:
1. A method of processing broadcast data in a broadcast transmitter, the method comprising: adding padding data to first data; randomizing the first data to which the padding data are added; encoding the randomized first data at a first code rate; first interleaving the encoded first data; converting the first-interleaved first data to symbols; second interleaving the first data converted to the symbols; encoding signaling data for signaling the first data at a second code rate; first interleaving the encoded signaling data; converting the first-interleaved signaling data to symbols; second interleaving the signaling data converted to the symbols; modulating data in a frame that includes the second interleaved first data and the second interleaved signaling data; and transmitting the modulated data, wherein the frame further includes second data multiplexed with the first data, wherein the signaling data include multiplexing information, wherein the frame further includes known data, wherein the known data include a first type of known data and a second type of known data other than the first type of known data, and wherein at least one of the first type of known data and the second type of known data are used for channel estimation in a broadcast receiver.