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:
Dec. 19, 2017
Filed:
Oct. 11, 2016
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Inventors:
Cholmin Kim, Changwon-si, KR;
Jiyong Lee, Anyang-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 16/32 (2006.01); G06F 3/06 (2006.01); G11C 16/04 (2006.01); G11C 16/26 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/32 (2013.01); G06F 3/0611 (2013.01); G06F 3/0653 (2013.01); G06F 3/0656 (2013.01); G06F 3/0679 (2013.01); G11C 16/0466 (2013.01); G11C 16/0483 (2013.01); G11C 16/26 (2013.01); G11C 16/3418 (2013.01); G11C 16/3431 (2013.01);
Abstract
A host device controls a storage device to perform a read operation of a read data unit with respect to selected memory areas. A read latency corresponding to the read operation of the storage device is stored in a read latency table of the host device. A determination is made whether a latency change ratio exceeds a threshold value, based on the read latency stored in the read latency table. The data host requests a data retention operation from the storage device, through a retention command, when the latency change ratio exceeds the threshold value.