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:
Dec. 20, 2022
Filed:
Sep. 10, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Michael Ionin, Rehovot, IL;
Alexander Bazarsky, Holon, IL;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A data storage device includes a memory device and a controller coupled to the memory device. The controller is configured to store XOR parity data in a host memory buffer (HMB) of a host device, monitor a health of the memory device, determine that a threshold corresponding to the health of one or more blocks of the memory device has been reached or exceeded, and copy the XOR parity data from the HMB to the memory device. The controller is further configured to receive a low power mode indication from the host device and enter the low power mode after copying the XOR parity data from the HMB to the memory device. The controller is further configured to correct read failures using the XOR parity data retrieved from the HMB.