Memory system

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United States of America Patent

PATENT NO 9691474
SERIAL NO

15091732

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A memory system according to the embodiment comprises a cell array of plural cells having three or more settable physical quantity levels and operative to store a code composed of symbols expressed by elements in a finite field Zp (p is a prime), wherein a set of two cells is defined as a pair cell and a combination of physical quantity levels of the two cells contained in the pair cell is defined as a pair cell level, wherein the pair cell uses a pair cell level of plural pair cell levels, which maximizes or minimizes a physical quantity level of one cell contained in the pair cell, to assign elements in the Zp to the pair cell levels, thereby storing symbols of the code.

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Patent Owner(s)

  • TOSHIBA MEMORY CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Toda, Haruki Yokohama, JP 246 5261

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