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. 28, 2024
Filed:
Oct. 04, 2022
SK Hynix Inc., Icheon, KR;
Sogang University Research and Business Development Foundation, Seoul, KR;
Donghyun Min, Goyang, KR;
Youngjae Kim, Seoul, KR;
SK Hynix Inc., Icheon, KR;
Sogang University Research and Business Development Foundation, Seoul, KR;
Abstract
A data storage device includes a volatile memory device including a first table area storing a first table having a plurality of first unit information, and a nonvolatile memory device including a subtree area and a second table area. The second table area stores sorted string tables (SSTables) of level 0 each including a respective plurality of first unit information. Each first unit information includes a key corresponding to a key-value (KV) command and a namespace identifying a tenant providing that KV command. The second table area and the subtree area form a data structure which can be queried with a key included in a KV command. The subtree area includes a plurality of subtrees respectively corresponding to a plurality of namespaces, each subtree storing an SSTable of level 1 having a plurality of second unit information each having a key related to the corresponding namespace of that subtree.