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:
Jun. 17, 2025
Filed:
Oct. 25, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Darshan Pagariya, Bangalore, IN;
Vishal Sharma, Bangalore, IN;
SANDISK TECHNOLOGIES, INC, Milpitas, CA (US);
Abstract
A storage device updates optimal parameters associated with a Thermal Region Tag (TRT). A controller on the storage device assigns a TRT to blocks programmed at a given temperature range and updates an optimal TRT parameters by obtaining a set of representative wordlines and a set of indicative wordlines for a block assigned to the TRT. The controller performs a bit error rate (BER) estimation on indicative wordlines in the set until a valid indicative wordline is found. The controller determines whether a BER Estimation Scan (BES) check is to be performed when the valid indicative wordline is found. In performing the BES check, the controller performs the BER estimation on representative wordlines in the set until a valid representative wordline is found. When a valid representative wordline is found, the controller obtains the optimal TRT parameter and updates the optimal TRT parameter.