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. 28, 2021
Filed:
May. 17, 2019
SK Hynix Inc., Gyeonggi-do, KR;
Yu Mi Kim, Gyeonggi-do, KR;
SK hynix Inc., Gyeonggi-do, KR;
Abstract
A memory controller controlling a memory device including a plurality of memory cells includes a read operation controller performing a soft read operation on the plurality of memory cells by using a plurality of soft read voltages determined based on a default read voltage when a read operation for reading the plurality of memory cells by the default read voltage fails, and reading the plurality of memory cells by using an optimal read voltage determined according to a result of performing the soft read operation, and a read voltage setting circuit determining the optimal read voltage using voltage candidates being soft read voltages corresponding to at least two voltage intervals, among a plurality of voltage intervals determined according to the plurality of soft read voltages, the voltage candidates selected in ascending order of a number of memory cells having threshold voltages belonging to each of the plurality of voltage intervals.