| 摘要 |
A decoding device which performs error correction decoding of encoded data formed from a combination of an outer code for first error correction and an inner code for second error correction is disclosed. The decoding device has: a demodulator for creating a data series of likelihood information values; a second error correction decoder for creating a hard decision value series by executing repetitive decoding for the second error correction based on the likelihood information values; and a first error correction decoder for detecting a lost bit in the hard decision value series and creating an erasure flag indicating the position of the detected lost bit. The second error correction decoder, according to the erasure flag, executes the repetitive decoding based on a likelihood information value not corresponding to the position of the lost bit among the data series of the likelihood information values and a predetermined value that invalidates the likelihood information value corresponding to the position of the lost bit.
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