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:
Jan. 07, 2020
Filed:
Mar. 10, 2017
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventors:
Keiko Abe, Kanagawa, JP;
Hiroki Noguchi, Kanagawa, JP;
Susumu Takeda, Kanagawa, JP;
Kumiko Nomura, Tokyo, JP;
Shinobu Fujita, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G11C 11/406 (2006.01); G06F 11/16 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0616 (2013.01); G06F 3/0619 (2013.01); G06F 3/0629 (2013.01); G06F 3/0655 (2013.01); G06F 3/0683 (2013.01); G06F 11/1612 (2013.01); G06F 2201/81 (2013.01); G11C 11/406 (2013.01);
Abstract
A memory system has a nonvolatile memory to have a memory capacity equal to or less than a memory capacity of a volatile memory, and store at least a part of data stored in the volatile memory, a first controller to refresh data in the volatile memory, and a second controller to overwrite the nonvolatile memory with data read from the volatile memory in a first period between a second period to refresh data in the volatile memory and a third period to subsequently refresh data in the volatile memory.