Decoder and method for decoding a tail-biting convolutional encoded signal using Viterbi decoding scheme
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United States of America Patent
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Dec 7, 2010
Grant Date -
Jul 26, 2007
app pub date -
Jan 10, 2007
filing date -
Jan 11, 2006
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Expired
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Abstract
A decoder and method for decoding a tail-biting convolutional encoded signal using Viterbi decoding scheme performs a traceback operation for a first portion of a total code block, which includes a code block of the tail-biting convolutional encoded signal and a padded block. During the traceback operation for the first portion, a particular state at a predefined position within the first portion is stored as a circular state. The circular state is used as a traceback starting state for at least one subsequent portion of the total code block to produce a decoded signal of the code block.
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