The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2024
Filed:
Jun. 27, 2023
Apple Inc., Cupertino, CA (US);
Yonathan Tate, Kfar Saba, IL;
Amit Pinchas Aylon, Tel Aviv, IL;
APPLE INC., Cupertino, CA (US);
Abstract
A controller includes an interface and a processor. The interface communicates with memory cells. The processor reads a Code Word (CW) from the memory cells using read thresholds to produce respective readouts, the read thresholds defining zones, identifies a subgroup of the memory cells associated with zones positioned about a Read Voltage (RV) predetermined between adjacent first and second Programming Voltages (PVs), estimates for each zone, based on the readouts, first and second cumulative counts of the memory cells corresponding to the first and second PVs, models first and second PDFs associated respectively with the memory cells programmed to the first and second PVs, based on the first and second cumulative counts, calculates for the zones respective reliability measures, based on the first and second PDFs, and assigns the reliability measures to bits of the CW, and decodes the CW by applying soft decoding to the assigned reliability measures.