Patent ID: 7317492
Filing Date: 2008-01-08
Classification: H03M,H04L,H04N

Abstract:
1. A digital television receiver, comprising: a demodulator adapted to demodulate an input signal containing first service data multiplexed with second service data; a first forward error correction (FEC) decoder adapted to decode the demodulated signal for first forward error correction (FEC) and remove first parity data from the FEC-decoded first and second service data in order to correct errors in the first and second service data that occurred during reception of the input signal; a demultiplexer adapted to demultiplex the first service data and the second service data from the FEC-decoded signal; and a second forward error correction (FEC) decoder adapted to decode the demultiplexed first service data for second forward error correction (FEC) and remove second parity data from the FEC-decoded first service data in order to additionally correct errors in the first service data that occurred during the reception of the input signal, wherein a length of the first parity data is different from a length of the second parity data.