Invention Grant
- Patent Title: Adjustable read retry order based on decoding success trend
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Application No.: US16824584Application Date: 2020-03-19
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Publication No.: US11017867B2Publication Date: 2021-05-25
- Inventor: Niang-Chu Chen , Jun Tao
- 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: G11C16/26
- IPC: G11C16/26 ; G11C16/08 ; G11C11/56 ; G11C11/408 ; G11C29/42 ; G11C29/52 ; G11C8/10 ; H03M13/11 ; G11C29/44 ; G11C16/04

Abstract:
Methods, systems, and media for decoding data are described. A sequence of read-level voltages for decoding operations may be determined based on a trend of decoding success indicators, including a first decoding success indicator and a second decoding success indicator. The first decoding success indicator is obtained from a more recent successful decoding operation. The first one of the sequence may be set to a read-level voltage of the first decoding success indicator. If the read-level voltage of the first decoding success indicator is less than a read-level voltage of the second decoding success indicator, then the trend is decreasing, and the second one of the sequence may be set to a read-level voltage less than that of the first one of the sequence. After executing one or more decoding operations, the decoding success indicators may be updated based on the read-level voltage of the current successful decoding operation.
Public/Granted literature
- US20200219571A1 Adjustable Read Retry Order Based on Decoding Success Trend Public/Granted day:2020-07-09
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