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:
Apr. 05, 2016
Filed:
Mar. 07, 2014
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/02 (2006.01); G06F 3/06 (2006.01); G06F 13/16 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 3/064 (2013.01); G06F 3/0628 (2013.01); G06F 3/0652 (2013.01); G06F 3/0679 (2013.01); G06F 3/0688 (2013.01); G06F 12/0238 (2013.01); G06F 12/0292 (2013.01); G06F 13/1668 (2013.01);
Abstract
According to one embodiment, a memory system includes non-volatile memory, a block management table that stores whether data in the non-volatile memory is valid or invalid in a unit of cluster, and a controller configured to execute compaction. In the block management table, first information related to likelihood that valid data within the block is invalidated is registered for each of the blocks. The controller is configured to select a block to be a target of the compaction based on the first information and use the selected block to execute the compaction.