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Paragraph Number170
6410
| Application | Calibrating non-volatile memory read thresholds | ||
|---|---|---|---|
| Matter Number | US10998041B1 | Reference Case 1 | US10998041B1 |
| Created | 12/22/21, 12:00 AM | Modified | 12/22/21, 12:00 AM |
Application Number
Content
In a Low-Density Parity-Check (LDPC) ECC decoder, a syndrome weight for a codeword is a number of unresolved equations, or unsatisfied check nodes, when the codeword is decoded. On average, the greater the number of unsatisfied check nodes (higher syndrome weight) the higher the number of errors in the codeword. On average, the fewer the number of unsatisfied check nodes (higher syndrome weight) the lower the number of errors in the codeword. Thus, in certain instances, a codeword with fewer errors may still have a greater the number of unsatisfied check nodes (higher syndrome weight).
Notes
Added by DJM 12 2021