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. 24, 2024
Filed:
Mar. 31, 2022
Western Digital Technologies, Inc., San Jose, CA (US);
Liang Li, Shanghai, CN;
Loc Tu, San Jose, CA (US);
Yinfeng Yu, Shanghai, CN;
Xuan Tian, Shanghai, CN;
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
A non-volatile storage apparatus comprises a plurality of memory cells that store host data and two models, a control circuit for writing to and reading from the memory cells, and an inference circuit. The inference circuit uses the first model with a first set of one or more metrics describing current operation of the non-volatile storage apparatus to make a first level prediction about defects and uses the second model with a second set of one or more metrics describing current operation of the non-volatile storage apparatus to make a second level prediction about defects. In one embodiment, the first level prediction is faster to make and uses less data collection, but is not as reliable, as the second level prediction. While second level prediction is more reliable, it takes more time to perform and requires a more intensive data collection, so it is only used when needed.