Decoding device for a stream of code symbols which are...

Details Decoding device for a stream of code symbols which are... Decoding device for a stream of code symbols which are...

H - Electricity

03

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354/67

H03M 13/00 (2006.01) G06F 11/10 (2006.01) G11B 20/18 (2006.01) H03M 13/27 (2006.01)

Patent

CA 1229170

42 ABSTRACT: Decoding device for a stream of code symbols which are word-wise protected by a double Reed-Solomon code with a minimum Hamming distance of 5 over the code symbols and an interleaving mechanism between the two codes, and also a player comprising such a decoding device. For the decoding of a data stream which is word- wise protected against errors by a double Reed-Solomon code with symbol-wise interleaving over the code words, first the reliability information for the constituent symbols is aggregated for a code word. The strategy is determined therefrom, entailing the number of erase sym- bols and the maximum number of error symbols to be cor- rected. The correction result is compared with a relia- bility code and on the basis thereof all symbols obtain an at least trivalent secondary reliability indication for decoding in the second code.

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