DTV transmitter and method of coding data in DTV transmitter
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United States of America Patent
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Apr 26, 2011
Grant Date -
May 3, 2007
app pub date -
Oct 20, 2006
filing date -
Oct 20, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A DTV transmitter includes a pre-processor pre-processing supplemental data, a multiplexer multiplexing pre-processed data with main data, and a byte-symbol converter converting each data byte of the multiplexed data into a symbol. It further includes a symbol processor processing each supplemental data symbol outputted from the byte-symbol converter. It encodes one of upper and lower bits of each supplemental data symbol into first and second data bits, post-decodes the first data bit, and outputs the post-decoded data bit and the second data bit as a symbol. The DTV transmitter further includes a symbol-byte converter converting each symbol outputted from the symbol processor into a data byte.
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