DYNAMIC BIT FLIP THRESHOLDS BASED ON SOFT BIT AND MATCH BIT
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United States of America
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Apr 3, 2025
app pub date -
Jul 23, 2024
filing date -
Jul 23, 2024
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Abstract
A soft input is obtained from a sense word corresponding to encoded host data read from the memory device and decoded using a parity-check matrix. A match array is maintained. Each iteration of an error correcting code operation a number of unsatisfied check nodes of a respective bit of the sense word is calculated for each bit of the sense word. A bit flip threshold from a threshold data structure is obtained based on a current iteration of the error correcting code operation, a soft bit associated with the respective bit, and a match bit associated with the respective bit. The respective bit is flipped based on the number of unsatisfied check nodes satisfying the bit flip threshold.
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