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US 7,721,185 B1Granted
Optimized reed-solomon decoder
AssigneeMarvell International Ltd.
InventorWeishi Feng
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Abstract
An error decoding system that comprises a first Reed-Solomon (RS) decoder that receives an encoded codeword and generates a decoded codeword. An inner code (IC) decoder checks the decoded codeword for uncorrected errors. A decoding control module communicates with the first RS decoder and the IC decoder, iteratively modifies a parameter of the first RS decoder if the IC decoder detects uncorrected errors in the decoded codeword, and instructs the first RS decoder to decode the encoded codeword again after modifying the parameter.
Claims26
An error decoding system comprising:
- a first Reed-Solomon (RS) decoder that receives an encoded codeword and generates a decoded codeword;
- an inner code (IC) decoder that checks said decoded codeword for uncorrected errors;
- and
- a decoding control module that communicates with said first RS decoder and said IC decoder, that iteratively modifies an error burst length of said first RS decoder if said IC decoder detects uncorrected errors in said decoded codeword, and that instructs said first RS decoder to decode said encoded codeword again after modifying said error burst length.
1 more element
An error decoding method comprising:
- receiving an encoded codeword;
- generating a decoded codeword using Reed-Solomon (RS) decoding;
- checking said decoded codeword for uncorrected errors;
- and
- iteratively modifying an error burst length of said RS decoding if uncorrected errors are detected in said decoded codeword.
2 more elements
Dependencies are inferred from the claim text.