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:
May. 27, 2025
Filed:
Jul. 18, 2023
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Assignee:
Sandisk Technologies, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1068 (2013.01); G06F 11/076 (2013.01);
Abstract
The present disclosure generally relates to achieving an acceptable uncorrectable bit error rate (UBER) using a dual temporary data protecting approach and a small SLC cache by adding a temporary XOR protection to zone-groups rather than storing another copy of the zone within the drive. The parity data can be stored with the user data (e.g., as part of the zone-group, effectively increasing zone-group size by 1) or in a separate location, e.g., in an SLC block or another separate MLC block.