Data error detection and correction in non-volatile memory...

Details Data error detection and correction in non-volatile memory... Data error detection and correction in non-volatile memory...

2011-01-04

2011-01-04

Rizk, Sam (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S781000, C714S784000

Reexamination Certificate

active

07865809

ABSTRACT:
Data error detection and correction in non-volatile memory devices are disclosed. Data error detection and correction can be performed with software, hardware or a combination of both. Generally an error corrector is referred to as an ECC (error correction code). One of the most relevant codes using in non-volatile memory devices is based on BCH (Bose, Ray-Chaudhuri, Hocquenghem) code. In order to correct reasonable number (e.g., up to 8-bit (eight-bit)) of random errors in a chunk of data (e.g., a codeword of 4200-bit with 4096-bit information data), a BCH(4200,4096,8) is used in GF(213). ECC comprises encoder and decoder. The decoder further comprises a plurality of error detectors and one error corrector. The plurality of error decoders is configured for calculating odd terms of syndrome polynomial for multiple channels in parallel, while the error corrector is configured for sequentially calculating even terms of syndrome polynomial, key solver and error location.

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