Patent ID: 7356094
Filing Date: 2008-04-08
Classification: H04L

Abstract:
1. A digital broadcast receiving apparatus for receiving a broadcast signal generated by combining sub signals modulated using a PRBS (pseudo-random binary sequence) generated based on an initial value set in accordance with a frequency of a broadcast channel by a signal transmission control use signal and a main signal generated based on information source data and reproducing the information source data contained in the received broadcast signal, having a demultiplexing circuit for demultiplexing said main signal and sub signals in the received broadcast signal, a random sequence generating circuit for generating said PRBS based on the initial value set in accordance with the frequency of said broadcast channel, a sub signal reproduction circuit for reproducing said demultiplexed sub signals using said PRBS, a control circuit for controlling one or more of (i) a coding rate, which is a ratio of decoded bits of the main signal to corresponding encoded bits of the main signal, and (ii) a modulation scheme of the reproduction of said main signal in accordance with said reproduced demultiplexed sub signals, and a decoding circuit for decoding said main signal under the control of said control circuit.