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:
Aug. 22, 2023
Filed:
Mar. 29, 2022
Western Digital Technologies, Inc., San Jose, CA (US);
Robert Horn, Yorba Linda, CA (US);
Derrick Burton, Ladera Ranch, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A Data Storage Device (DSD) includes one or more magnetic disks. One or more data blocks are encoded into a first plurality of Error Correction Code (ECC) sub-blocks including a first ECC sub-block. The first plurality of ECC sub-blocks is encoded into a first ECC super-block. The first ECC sub-block is write-verified by reading the first ECC super-block. If the write-verify passes, a second plurality of ECC sub-blocks is encoded into a subsequent ECC super-block. If the write-verify fails, the first ECC sub-block and a subset of the second plurality of ECC sub-blocks are encoded into the subsequent ECC super-block. In another aspect, in response to the first ECC super-block failing to recover the first ECC sub-block, a subsequent ECC super-block is read and a copy of the first ECC sub-block is used if the copy is detected in the subsequent ECC super-block.