Invention Grant
- Patent Title: Asymmetric log-likelihood ratio for flash channel
- Patent Title (中): 闪光通道的非对称对数似然比
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Application No.: US14724770Application Date: 2015-05-28
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Publication No.: US09305640B2Publication Date: 2016-04-05
- Inventor: Xinde Hu
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: McDermott Will & Emery LLP
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C11/56 ; G11C16/26

Abstract:
Disclosed is a system and method for reading flash memory cells with dynamically adjusted probability values (e.g., log-likelihood ratios). In connection with reading bit values from flash memory cells, one or more predetermined first probability values are adjusted relative to one or more predetermined second probability values. The one or more predetermined first probability values are associated with reading one or more memory cells programmed to a first binary value, and the one or more predetermined second probability values are associated with reading one or more memory cells programmed to a second binary value. The plurality of bit values read from the plurality of non-volatile memory cells and the one or more adjusted first probability values are provided to a decoder for use in decoding the plurality of bit values.
Public/Granted literature
- US20150262660A1 ASYMMETRIC LOG-LIKELIHOOD RATIO FOR FLASH CHANNEL Public/Granted day:2015-09-17
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