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:
Jun. 04, 2019
Filed:
Dec. 12, 2016
Hyun-seung Jei, Osan-si, KR;
Heewon Lee, Suwon-si, KR;
Suejin Kim, Bucheon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A read reclaim method of a storage device includes detecting, at a cycle of a random number of read operations, the number of error bits within non-selection data stored in each of a plurality of memory blocks. A memory block having the number of detected error bits, with respect to the number of read operations, increasing at a rate greater than a reference rate over one or more cycles of the random number of read operations is selected as a weak block. The number of error bits within non-selection data stored in the weak block is detected at a cycle of a fixed number of read operations. A detection is made of whether the number of error bits detected according to the fixed-number cycle is greater than or equal to a read reclaim reference. The non-selection data is data not requested by a host.