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:
Nov. 25, 2025
Filed:
Dec. 21, 2023
SK Hynix Nand Product Solutions Corp., Rancho Cordova, CA (US);
Zion Kwok, Burnaby, CA;
SK Hynix NAND Product Solutions Corp., Rancho Cordova, CA (US);
Abstract
This application is directed to data validation and refresh in an electronic device having a memory device. The memory device receives an inquiry for a validity condition of a page of the memory device, which includes a plurality of memory cells that store two consecutive data items and correspond to two nominal threshold voltages. In response to the inquiry, the memory device selects a first readout voltage and a second readout voltage between the two nominal threshold voltages, and applies the first readout voltage and the second readout voltage to read the plurality of memory cells and generate first readout data and second readout data, respectively. An error rate of the page is determined based on the first readout data and the second readout data, and in some embodiments, further used to determine whether an error correction process or a background data refresh need to be implemented on the page.