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:
May. 03, 2016
Filed:
Jun. 16, 2014
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Masami Aochi, Yokohama, JP;
Yoshihisa Kojima, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to one embodiment, a memory system includes a first memory, a second memory, a third memory, and a memory controller. The first memory includes a plurality of blocks. The second memory stores a first table having a plurality of first correspondences between a logical address and a physical address. The third memory has a higher processing speed than the second memory and stores a second table having second correspondences which are parts of the first correspondences. The memory controller determines whether data in a written block is first data to be copied, using the first table, not the second table. The memory controller copies the first data from the written block to a writable block to copy all data in a first state in the second block to the writable block. The memory controller sets all data in the written block to a second state.