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. 16, 2023
Filed:
May. 06, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A data storage device and method for host-initiated cached read to recover corrupted data within timeout constraints are provided. In one embodiment, a data storage device is provided comprising a volatile memory, a non-volatile memory, and a controller. The controller is configured to receive a read look-ahead command from a host to perform a read look-ahead of a first logical address; receive a read command from the host to read a second logical address; and execute the read look-ahead command by performing the following as background operations while executing the read command: read data for a location in the non-volatile memory that corresponds to the first logical address; correct an error in the data; and cache the corrected data in the volatile memory. The cached corrected data can be sent back to the host in response to the host requesting a read of the same logical address. Other embodiments are provided.