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:
Apr. 21, 2020
Filed:
Apr. 13, 2018
SK Hynix Inc., Gyeonggi-do, KR;
Yeong Dong Gim, Gyeonggi-do, KR;
SK hynix Inc., Gyeonggi-do, KR;
Abstract
A data storage device includes a nonvolatile memory device including a plurality of memory cells; and a controller suitable for determining whether the memory cells are erased or not, wherein, when it is determined, based on first data read as a read voltage set including a first read voltage is applied to the memory cells, that the memory cells are not erased, the controller determines whether the memory cells are erased or not based on second data read as the read voltage set in which the first read voltage is replaced with a second read voltage is applied to the memory cells, and wherein the first and second read voltages are read voltages of lowest levels among read voltages included in the read voltage set.