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Method of correcting message errors using cycle redundancy checks




Title: Method of correcting message errors using cycle redundancy checks.
Abstract: A method of correcting errors in a message transmitted over a digital communication channel, where the message was encoded using a CRC for purposes of error detection. A parity-check matrix representation of the CRC is computed for any fixed-length message, and that parity-check matrix is combined with the parity-check matrix for any error correcting code that used in conjunction with the CRC. The combined parity-check matrix is extended using sparsification algorithms to allow it to work well under a message passing decoder (MPD). Received messages are decoded using the message passing decoder, making it possible to correct more errors than if the CRC were decoded in a conventional manner. ...


USPTO Applicaton #: #20090259917
Inventors: Quentin Spencer


The Patent Description & Claims data below is from USPTO Patent Application 20090259917, Method of correcting message errors using cycle redundancy checks.




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Data accessing method, controller and storage system using the same
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Structured low-density parity-check (ldpc) code
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Error detection/correction and fault detection/recovery
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stats Patent Info
Application #
US 20090259917 A1
Publish Date
10/15/2009
Document #
File Date
12/31/1969
USPTO Class
Other USPTO Classes
International Class
/
Drawings
0


Message Passing Sparsification

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Error Detection/correction And Fault Detection/recovery   Pulse Or Data Error Handling   Digital Data Error Correction   Forward Correction By Block Code   Error Correcting Code With Additional Error Detection Code (e.g., Cyclic Redundancy Character, Parity)  

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20091015|20090259917|correcting message errors using cycle redundancy checks|A method of correcting errors in a message transmitted over a digital communication channel, where the message was encoded using a CRC for purposes of error detection. A parity-check matrix representation of the CRC is computed for any fixed-length message, and that parity-check matrix is combined with the parity-check matrix |
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