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:
Oct. 18, 2022
Filed:
Jan. 20, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Kai-Lung Cheng, Irvine, CA (US);
Yun-Tzuo Lai, Irvine, CA (US);
Eugene Lisitsyn, Anaheim, CA (US);
Jerry Lo, Hacienda Heights, CA (US);
Subhash Balakrishna Pillai, Irvine, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
The subject technology provides for managing a data storage system. A host write command to write host data associated with a logical address to a non-volatile memory is received. A first physical address in the non-volatile memory mapped to the logical address in an address mapping table is determined. An indicator that the first physical address is bad checked. If the first physical address is indicated as bad, a valid count associated with a first set of physical addresses at a current value is maintained. The first set of physical addresses comprises the first physical address. If the first physical address is not indicated as bad, the first physical address is marked as invalid. The valid count associated with the first set of physical addresses is decremented.