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BROADCASTING RECEIVER AND BROADCAST SINGNAL PROCESSING METHOD

  • US 20090044231A1
  • 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 broadcast signal including mobile service data and main service data, in which the mobile service data is able to construct a data group, the data group is divided into several areas, and a transmission parameter is inserted into some areas from among the several areas;

    a block decoder for performing block-unit symbol-decoding of the mobile service data contained in the received broadcast signal on the basis of the transmission parameter;

    a RS frame decoder for constructing a RS frame on the basis of the symbol-decoded mobile service data, performing a RS decoding on the basis of the transmission parameter, and correcting errors generated in the mobile service data, in which the RS frame includes at least one data packet of the mobile service data, a RS parity generated on the basis of the at least one data packet, and a CRC checksum generated on the basis of the at least one data packet and the RS parity;

    a derandomizer for derandomizing the RS-decoded mobile service data; and

    a decoder for extracting a parameter from audio stream included in the derandomized mobile service data, decoding the extracted parameter, and restoring an audio signal of an extended area.

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