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. 06, 2022
Filed:
May. 26, 2020
Western Digital Technologies, Inc., San Jose, CA (US);
Daniel L. Helmick, Broomfield, CO (US);
Mark Dancho, Chandler, AZ (US);
Ryan R. Jones, Mesa, AZ (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
The present disclosure generally relates to methods of operating storage devices. The storage device is comprised of a controller, a random access memory (RAM) unit, and a NVM unit, wherein the NVM unit is comprised of a plurality of zones. The RAM unit comprises a first logical to physical address table and the NVM unit comprises a second logical to physical address table. The zones are partitioned into sections, and each partitioned section aligns with a change log table. Data is written to each zone sequentially, and only one partitioned section is updated at a time for each zone. Each time a zone is erased or written to in the NVM unit, the first logical to physical address table is updated and the second logical to physical address table is periodically updated to match the first logical to physical address table.