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.

Date of Patent:
Oct. 28, 2025

Filed:

Nov. 20, 2023
Applicant:

SK Hynix Inc, Gyeonggi-do, KR;

Inventors:

Meysam Asadi, San Jose, CA (US);

Fan Zhang, San Jose, CA (US);

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 16/26 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/26 (2013.01); G11C 16/3404 (2013.01);
Abstract

A system and a method for searching for an optimal read threshold voltage. A memory device transfers to a controller only needed information (i.e., count formation) for each read, instead of transferring all the read data. The memory device includes: a pattern counter configured to: receive, from a memory cell, read data item, among multiple data items, corresponding to a read request; count, from the read data item, the number of cells reading as a particular value in multiple voltage level regions corresponding to multiple patterns for multiple pages among the plurality of pages, to generate count information; and provide the count information to the controller.


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