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:
Apr. 07, 2020
Filed:
Jul. 25, 2018
Western Digital Technologies, Inc., San Jose, CA (US);
Zelei Guo, San Jose, CA (US);
Chao-Han Cheng, San Jose, CA (US);
Nan Lu, San Jose, CA (US);
Tienchien Kuo, Sunnyvale, CA (US);
Niles Nian Yang, Mountain View, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Systems, methods, and/or devices are used to manage open blocks within non-volatile storage devices, in order to improve the reliability of non-volatile storage devices. In some embodiments, when a shut-down request is received from a host device, the storage device fetches information about open blocks and their boundary regions susceptible to data reliability issues, and for each identified boundary region, the storage device programs a region contiguous to the identified boundary region. In some embodiments, the device updates an XOR parity table used for XOR parity management with the information that the region contiguous to the identified boundary is programmed. Subsequently, in some embodiments, the storage device can use the information, stored in the contiguous region and/or the XOR parity table, for data recovery in the event of a data loss. As a result, the reliability of the non-volatile storage device is improved.