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. 08, 2022
Filed:
Feb. 09, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Idan Alrod, Herzliya, IL;
Eran Sharon, Rishon Lezion, IL;
Sergey Anatolievich Gorobets, Edinburgh, GB;
Jack Frayer, Boulder Creek, CA (US);
Tien-Chien Kuo, Sunnyvale, CA (US);
Alexander Bazarsky, Holon, IL;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A storage apparatus includes non-volatile memory cells formed on a memory die, each memory cell configured to hold bits of data, and a control circuit. The control circuit is configured to calculate parity data for data to be stored in the memory cells and program the memory cells to first distributions. The control circuit is also configured to read memory cells in the first distributions, recover the data from results of reading the memory cells in the first distributions combined with the parity data, and further program the memory cells from the first distributions to second distributions to store the data. To improve the accuracy of recovering the encoded foggy phase data, techniques are presented to calibrate the voltage levels used in sensing the foggy state distributions.