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US 2014/0181617 A1Published application
Management of non-valid decision patterns of a soft read retry operation
AssigneeLSI Corporation
InventorsYunxiang Wu, Ning Chen, Jamal Riani, Hakim Alhussien
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Abstract
An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an output signal in response to (i) a value retrieved from a look-up table, and (ii) an index signal. The second circuit may be configured to generate the index signal in response to a plurality of page signals. The apparatus may manage decision patterns during a soft retry.
Claims13
An apparatus comprising:
- a first circuit configured to generate an output signal in response to (i) a value retrieved from a look-up table, and (ii) an index signal;
- and
- a second circuit configured to generate said index signal in response to a plurality of page signals, wherein said apparatus manages decision patterns during a soft retry operation.
An apparatus for management of non-valid decision patterns, comprising the steps of:
- means for generating a plurality of a hard reads from a memory over a plurality of voltages;
- means for determining a plurality of non-valid decision patterns by generating a probability said hard read is correct;
- means for correcting said non-valid decision patterns by using (i) an index signal generated from said plurality of hard reads and (ii) a value retrieved from a look-up table.
A method for management of non-valid decision patterns, comprising the steps of:
- (A) generating a plurality of a hard reads from a memory over a plurality of voltages;
- (B) determining a plurality of non-valid decision patterns by generating a probability said hard read is correct;
- and
- (C) correcting said non-valid decision patterns by using (i) an index signal generated from said plurality of hard reads and (ii) a value retrieved from a look-up table.
1 more element
Dependencies are inferred from the claim text.