Data encoding in solid-state storage apparatus

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United States of America Patent

PATENT NO 9734010
SERIAL NO

15225856

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Abstract

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A method for encoding an input data block for storage in q-level cells of solid-state memory includes producing a preliminary block from the input data block by modulation encoding at least part of the input block into a first group of qary symbols via a first drift-tolerant encoding scheme, the preliminary block comprising the first group of qary symbols and any remainder of the input block not encoded via the first encoding scheme; generating parity data for the preliminary block via an error-correction encoding scheme; modulation encoding the parity data and any remainder of the input block into a second group of qary symbols via a second drift-tolerant encoding scheme; and supplying the qary symbols of the first and second groups for storage in respective q-level memory cells.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mittelholzer, Thomas Rueschlikon, CH 133 1647
Papandreou, Nikolaos Rueschlikon, CH 143 1228
Pozidis, Charalampos Rueschlikon, CH 181 1384

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