System and method for reviving catastrophic codes
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United States of America Patent
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Jan 30, 2007
Grant Date -
Sep 4, 2003
app pub date -
Mar 4, 2002
filing date -
Mar 4, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method of the present invention revives a catastrophic code used for channel coding data. A data receiving circuit receives a digital input data sequence to be coded with a code having a distance spectrum containing an infinite component that corresponds to a finite hamming weight such that the code may cause catastrophic error propagation. The circuit is operative for periodically inserting known symbols into the digital input data sequence. An encoder, such as a convolutional encoder, is operatively connected to the data receiving circuit and encodes the digital input data sequence.
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