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Method and decoder for soft input decoding of generalized concatenated codes

  • A soft input decoding method and a decoder for generalized concatenated (GC) codes. The GC codes are constructed from inner nested block codes, such as binary Bose-Chaudhuri-Hocquenghem, BCH, codes and outer codes, such as Reed-Solomon, RS, codes. In order to enable soft input decoding for the inner block codes, a sequential stack decoding algorithm is used. Ordinary stack decoding of binary block codes requires the complete trellis of the code. In one aspect, the present invention applies instead a representation of the block codes based on the trellises of supercodes in order to reduce the memory requirements for the representation of the inner codes. This enables an efficient hardware implementation. In another aspect, there is provided a soft input decoding method and device employing a sequential stack decoding algorithm in combination with list-of-two decoding which is particularly well suited for applications that require very low residual error rates.

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Metadaten
Author:Jürgen FreudenbergerORCiDGND, Jens Spinner, Christoph BaumhofGND
URL:https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&docid=US020170331499A1
Document Type:Patent
Language:English
Year of Publication:2017
Release Date:2019/08/08
Inventor:Hyperstone GmbH
Number:US020170331499A1
Number:DE102017110389
Date of Application:15.05.2017
Date of grant:16.11.2017
Patent Agency:USA
Open Access?:Nein
Relevance:Patent, Offenlegungsschrift