Coding and decoding a signal modified in accordance with the feedback states of an encoder
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United States of America Patent
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Jul 12, 2005
Issued Date -
N/A
app pub date -
Aug 8, 2002
filing date -
May 27, 1999
priority date (Note) -
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Abstract
A data encoding system includes a modifier, an encoder, and a feedback. The modifier receives a first data stream and modifies the first data stream so as to provide a second data stream. The encoder encodes the second data stream in order to provide an output. At least a portion of the output has predetermined symbol values. A feedback from the encoder to the modifier provides encoder states to the modifier. The modifier modifies the first data stream based on the encoder states so as to facilitate the encoder in providing the portion of the output having the predetermined symbol values. A receiver receives a signal based on the output and decodes the signal.
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