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. 24, 2022
Filed:
Feb. 16, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Akhilesh Yadav, Bangalore, IN;
Ramanathan Muthiah, Bangalore, IN;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Systems and methods for host-assisted storage device error correction are described. A host may first encode host data with a forward error correction code (ECC) and send the encoded host data to the storage device. The storage device may further encode the host data using its own ECC. The host may also provide the forward ECC parity information to be stored on the storage device in a different location than the host data. When the host data is read by the storage device, the storage device will decode with its ECC. If the storage device ECC decode is incomplete and the bit error rate is below the recoverable error threshold of the forward error correction, the partially-recovered host data will be sent to the host. The host will complete decode using the forward ECC and parity data. Forward ECC may be selectively applied to important host data.