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.

Date of Patent:
Mar. 07, 2017

Filed:

Jun. 18, 2015
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Daiki Watanabe, Yokohama, JP;

Daisuke Fujiwara, Yokohama, JP;

Ryo Yamaki, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/03 (2006.01); G06F 9/30 (2006.01);
U.S. Cl.
CPC ...
G06F 9/30145 (2013.01); G06F 9/3001 (2013.01); G06F 9/3004 (2013.01);
Abstract

According to one embodiment, a memory controller includes a decoder configured to perform approximate maximum likelihood decoding, the decoder including: an initial value generation unit configured to calculate first data on the basis of a received word read from a non-volatile memory; a storage unit configured to store the first data and a predetermined number of second data; an update unit configured to calculate new second data by using the predetermined number of second data stored and update the storage unit; an arithmetic unit configured to output an addition result of the first data and the latest second data as decoded word information; and a selection unit configured to select a decoded word with the maximum likelihood on the basis of a plurality of the decoded word information.


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