DATA STORAGE SYSTEM

A data storage system includes an encoder subsystem comprising an error correction code encoder, a modulation encoder, and a precoder, and a decoder subsystem similarly comprising a detector, an inverse precoder, a modulation decoder, and an error correction code decoder. The error correction encode...

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Bibliographic Details
Main Authors ELEFTHERIOU, Evangelos S, CIDECIYAN, Roy D, DHOLAKIA, Ajay, MITTELHOLZER, Thomas, HANSON, Weldon M, OENNING, Travis R, GALBRAITH, Richard L
Format Patent
LanguageEnglish
French
German
Published 01.03.2017
Subjects
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A data storage system includes an encoder subsystem comprising an error correction code encoder, a modulation encoder, and a precoder, and a decoder subsystem similarly comprising a detector, an inverse precoder, a modulation decoder, and an error correction code decoder. The error correction encoder applies an error correction code to the incoming user bit stream, and the modulation encoder applies so-called modulation or constrained coding to the error correction coded bit stream. The precoder applies so-called precoding to the modulation encoded bit stream. However, this precoding is applied to selected portions of the bit stream only. There can also be a permutation step where the bit sequence is permuted after the modulation encoder before precoding is applied by the precoder. The decoder subsystem operates in the inverse manner.
Bibliography:Application Number: EP20040798889