Patent ID: 8135095
Filing Date: 2012-03-13
Classification: H03M,H04L

Abstract:
1. A method for processing a digital television (DTV) broadcast signal in a broadcasting receiver, the method comprising: receiving, by a tuner, the DTV broadcast signal including enhanced data; equalizing the received DTV broadcast signal by compensating channel distortion of the received DTV broadcast signal; decoding signaling information from the equalized DTV broadcast signal, wherein the signaling information includes information indicating whether the enhanced data are coded at a ½ code rate or at a ¼ code rate; decoding, by a decoder, the enhanced data included in the equalized DTV broadcast signal; and derandomizing, by a derandomizer, the decoded enhanced data, wherein the enhanced data in the received DTV broadcast signal are generated in a broadcast transmitter by: randomizing original enhanced data, first Reed Solomon (RS) encoding the randomized original enhanced data, convolutional encoding the first RS-encoded original enhanced data, second RS encoding the convolutional encoded original enhanced data, interleaving the second RS-encoded original enhanced data, and trellis encoding the interleaved original enhanced data.