Invention Grant
- Patent Title: Error recovery handling
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Application No.: US17357856Application Date: 2021-06-24
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Publication No.: US11630720B2Publication Date: 2023-04-18
- Inventor: Parvaneh Alavi , Kai-Lung Cheng , Yun-Tzuo Lai , Haining Liu
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G06F11/07
- IPC: G06F11/07

Abstract:
A device that provides error recovery handling includes a processor that is configured to receive an error recovery request including error type information and a page address, where the error type information is mapped to a first error recovery technique. The processor may be configured to determine whether an error count associated with the flash memory circuit satisfies a first criterion and an error map associated with the flash memory circuit satisfies a second criterion, where the error count indicates a number of read errors that have occurred and the error map indicates blocks in which the read errors have occurred. The processor may be configured to utilize a second technique to attempt to recover data when the first and second criterions are satisfied, otherwise utilize the first technique to attempt to recover data, where the second technique is associated with recovering data stored in an offline flash memory circuit.
Public/Granted literature
- US20210318927A1 Error Recovery Handling Public/Granted day:2021-10-14
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