Error correction decoder with correction of lowest soft decisions
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United States of America Patent
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Jul 18, 2006
Grant Date -
Mar 13, 2003
app pub date -
Feb 26, 2001
filing date -
Mar 2, 2000
priority date (Note) -
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Abstract
An object of the present invention is to provide a decoder capable of improving accuracy of error correction. A demodulating section 11 demodulates received data Y and creates soft decision data. An error correction processing section 14 performs an error correction processing in accordance with a predetermined algorithm determined with the transmission side beforehand to create a bit sequence of data. A CRC section 15 performs a CRC test. A soft decision data correction section 13 is controlled in such a manner that in the event that no error is decided, the bit sequence of data is output in form of decoding data D, and in the event that an error is decided, a data correction control circuit 16 corrects soft decision data of lowest reliability from a memory 12 to soft decision data 6, 0 of higher reliability.
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