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:
Nov. 19, 2019
Filed:
Sep. 08, 2017
Applicant:
Toshiba Memory Corporation, Minato-ku, Tokyo, JP;
Inventor:
Katsuhiko Hoya, Yokohama Kanagawa, JP;
Assignee:
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/42 (2006.01); G11C 29/52 (2006.01); G11C 11/16 (2006.01); G06F 11/10 (2006.01); G11C 16/34 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G11C 29/42 (2013.01); G06F 11/106 (2013.01); G11C 11/1677 (2013.01); G11C 29/52 (2013.01); G11C 16/349 (2013.01); G11C 2029/0409 (2013.01); G11C 2029/0411 (2013.01);
Abstract
A memory device of one embodiment includes memory elements which store data and parity; a first decoder which, when scrubbing of the data is performed while no external access is being made to the memory device, uses a syndrome generated from the data and the parity to correct an error of a maximum of N bits in a unit of the data; and a second decoder which, when reading of the data is performed, uses the syndrome to correct an error of a maximum of M bits in a unit of the data. The N bits represent the number of bits smaller than the N bits.