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:
Jul. 19, 2022
Filed:
Apr. 01, 2020
Western Digital Technologies, Inc., San Jose, CA (US);
Ankit Gupta, Karnataka, IN;
Narendhiran Chinnaanangur Ravimohan, Karnataka, IN;
Abhinand Amarnath, Karnataka, IN;
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
Aspects of a storage device including a memory and a controller are provided which allow for data associated with a deleted file to be recovered from the memory when the data is overwritten by a new file at the same logical address. To locate the data, the controller may identify a logical address associated with the data based on a directory entry associated with a FAT. The controller may determine a physical location of the data associated with the logical address based on one or more control entries in a L2P mapping table, such as a previous control entry in the table. The controller may also determine the physical location based on a hot count associated with the previous control entry. After the physical location is determined, the controller may associate a new logical address with the physical location of the data to recover the deleted file.