IP Library Granted Patent US 9,298,546
Granted Patent B2
US 9,298,546 · App. 14/703,463 · Granted Mar 29, 2016

Semiconductor memory device

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Quick Facts
Patent No.
US 9,298,546
App. No.
14/703,463
Granted
Mar 29, 2016
Kind
B2
Abstract

A semiconductor memory device including a memory chip; a first encoder/decoder section configured to obtain a first error check code based on original data and a first error correction code based on the original data and the first error check code, the first error check code and the first error correction code being recorded on a first page of the memory chip; and a second encoder/decoder section configured to obtain a second error check code and a third error correction code based on the original data, the second error check code being obtained based on the third error correction code, the second error check code and the third error correction code being recorded on a second page of the memory chip.

Claims (4)

1. A semiconductor memory device comprising:

a memory chip;

a first encoder/decoder (E/D) section configured to obtain a first error check code based on original data and a first error correction code based on the original data and the first error check code, the first error check code and the first error correction code being recorded on a first page of the memory chip; and

a second encoder/decoder (E/D) section configured to obtain a second error check code and a third error correction code, the third error correction code being based on the second error check code and a redundant code generated from the original data, the second error check code being based on the redundant code, the second error check code and the third error correction code being recorded on a second page of the memory chip.

Assignments (4)
MERGER Recorded Jan 22, 2021
From: TOSHIBA MEMORY CORPORATION
To: K.K. PANGEA
Reel/Frame 055659/0471 →
CHANGE OF NAME AND ADDRESS Recorded Jan 22, 2021
From: TOSHIBA MEMORY CORPORATION
To: KIOXIA CORPORATION
Reel/Frame 055669/0001 →
CHANGE OF NAME AND ADDRESS Recorded Jan 22, 2021
From: K.K. PANGEA
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 055669/0401 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2017
From: KABUSHIKI KAISHA TOSHIBA
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 042940/0399 →