Invention Grant
- Patent Title: Generating read thresholds using gradient descent and without side information
- Patent Title (中): 使用梯度下降和无旁边信息生成读取阈值
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Application No.: US14550764Application Date: 2014-11-21
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Publication No.: US09269449B2Publication Date: 2016-02-23
- Inventor: Frederick K. H. Lee , Jason Bellorado , Arunkumar Subramanian , Lingqi Zeng , Xiangyu Tang , Ameen Aslam
- Applicant: SK hynix memory solutions inc.
- Applicant Address: US CA San Jose
- Assignee: SK Hynix memory solutions inc.
- Current Assignee: SK Hynix memory solutions inc.
- Current Assignee Address: US CA San Jose
- Agency: IP & T Group LLP
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G11C16/26 ; G11C16/10 ; G11C11/56 ; G11C16/04 ; G11C16/34 ; G11C16/06

Abstract:
A first bit position of a cell in solid state storage is read where a sorting bit is obtained using the read of the first bit position. A second bit position of the cell is read for a first time, including by setting a first read threshold associated with the second bit position to a first value and setting a second read threshold associated with the second bit position to a second value. The second bit position of the cell is read for a second time, including by setting the first read threshold to a third value and setting the second read threshold to a fourth value. A new value for the first read threshold and for the second read threshold is generated using the sorting bit, the first read, and the second read.
Public/Granted literature
- US20150078084A1 GENERATING READ THRESHOLDS USING GRADIENT DESCENT AND WITHOUT SIDE INFORMATION Public/Granted day:2015-03-19
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