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:
Jan. 23, 2024
Filed:
Apr. 20, 2022
Western Digital Technologies, Inc., San Jose, CA (US);
Nicholas Thomas, Sunnyvale, CA (US);
Eran Erez, San Jose, CA (US);
Matt Davidson, Mountain View, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A storage system receives a command from a host to overwrite data that is stored in a memory of the storage system. The command may have been issued in error or by malware, so the storage system preserves the data that the host wants to overwrite, just in case the host later wants to recover the data. To do this, the storage system associates the physical address of the location of the memory that stores the data with a logical block address that is inaccessible by the host. To recover the data, the storage system replaces the logical block address that is inaccessible by the host with a logical block address that is accessible by the host.