VSB RECEPTION SYSTEM WITH ENHANCED SIGNAL DETECTION FOR PROCESSING SUPPLEMENTAL DATA
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Abstract
A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.
89 Citations
28 Claims
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1-24. -24. (canceled)
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25. A method of processing data in a transmission system, the method comprising:
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performing first encoding on first data in a first encoder, the first data being input to the first encoder through a first path and including at least audio or video data; multiplexing the encoded first data with second data in a multiplexer, the second data being input to the multiplexer through a second path different from the first path and including at least audio or video data; performing second encoding on the multiplexed first and second data in a second encoder, the second encoding being different from the first encoding; interleaving the first and second data encoded by the second encoder in an interleaver for burst error correction; mapping the first and second data interleaved by the interleaver in a mapper; and adding sync information to the mapped first and second data.
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26. A transmission system for processing data, the transmission system comprising:
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a first encoder performing first encoding on first data, the first data being input to the first encoder through a first path and including at least audio or video data; a multiplexer multiplexing the encoded first data with second data, the second data being input to the multiplexer through a second path different from the first path and including at least audio or video data; a second encoder performing second encoding on the multiplexed first and second data, the second encoding being different from the first encoding; an interleaver interleaving the first and second data encoded by the second encoder for burst error correction; a mapper mapping the first and second data interleaved by the interleaver; and an inserter inserting sync information to the mapped first and second data.
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27. A method of processing data in a reception system, the method comprising:
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detecting sync information from a signal in a sync detector, the signal including first data multiplexed with second data, the first and second data including at least audio or video data; deinterleaving the first and second data in a deinterleaver for burst error correction; performing first decoding on the deinterleaved first and second data in a first decoder; separating the decoded first data from the decoded first and second data in a demultiplexer, the first data being output from the demultiplexer through a first path and the second data being output from the demultiplexer through a second path different from the first path; and performing second decoding on the separated first data in a second decoder, the second decoding being different from the first decoding.
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28. A reception system for processing data, the reception system comprising:
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a sync detector detecting sync information from a signal including first data multiplexed with second data, the first and second data including at least audio or video data; a deinterleaver for deinterleaving the first and second data for burst error correction; a first decoder performing first decoding on the deinterleaved first and second data; a demultiplexer separating the decoded first data from the decoded first and second data decoded by the first decoder, the first data being output from the demultiplexer through a first path and the second data being output from the demultiplexer through a second path different from the first path; and a second decoder performing second decoding on the separated first data, the second decoding being different from the first decoding.
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Specification