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BROADCASTING RECEIVER AND BROADCAST SIGNAL PROCESSING METHOD

  • US 20090044230A1
  • Filed: 07/02/2008
  • Published: 02/12/2009
  • Est. Priority Date: 07/02/2007
  • Status: Active Grant
First Claim
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1. A broadcasting receiver comprising:

  • a receiver which receives a broadcasting signal including main service data and mobile service data, wherein the mobile service data configures a data group, and the data group is divided into a plurality of regions, known data streams are linearly inserted into some of the plurality of regions, and initialization data used for initializing a memory in a trellis encoder of a transmitter is located at a start portion of the known data stream;

    a known data detector which detects known data in the received broadcasting signal;

    an equalizer which channel-equalizes the received mobile service data using the detected known data; and

    a decoder which extracts audio data and supplementary information from the channel-equalized mobile service data, inversely scales the audio data on the basis of a scale factor indicated by scale factor index information included in the supplementary information, and restores an audio signal.

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