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:
Sep. 15, 2020
Filed:
Oct. 24, 2018
SK Hynix Inc., Icheon, KR;
Do-Sun Hong, Icheon, KR;
Jung Hyun Kwon, Seoul, KR;
Won Gyu Shin, Icheon, KR;
Seung Gyu Jeong, Icheon, KR;
SK hynix Inc., Icheon, KR;
Abstract
A memory system may include a nonvolatile memory device and a wear leveling unit. The nonvolatile memory device includes a plurality of memory blocks. The wear leveling unit may be configured to intermittently increase an accumulative access count of a memory block among the memory blocks by a predetermined value, decide a wear level of the memory block based on the accumulative access count whenever the accumulative access count is increased, set the memory block to a hot block based on the wear level, and perform a hot block management operation on the hot block. The wear leveling unit may increase the accumulative access count in response to an access count reaching a predetermined value. The accumulative access count may be stored in the nonvolatile memory device, and the access count may be stored in a volatile memory device.