Invention Grant
- Patent Title: Using read values from previous decoding operations to calculate soft bit information in an error recovery operation
- Patent Title (中): 使用先前解码操作中的读取值来计算错误恢复操作中的软位信息
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Application No.: US14040554Application Date: 2013-09-27
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Publication No.: US09298552B2Publication Date: 2016-03-29
- Inventor: Lark-Hoon Leem , Xin Guo , Ravi H. Motwani , Rosanna Yee , Scott E. Nelson
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: INTEL CORPORATION
- Current Assignee: INTEL CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Konrad Raynes Davda & Victor LLP
- Agent David W. Victor
- Main IPC: H03M13/00
- IPC: H03M13/00 ; G06F11/14 ; G06F11/10

Abstract:
Provided are an apparatus, system, and method for performing an error recovery operation with respect to a read of a block of memory cells in a storage device. A current iteration of a decoding operation is performed by applying at least one reference voltage for the current iteration to a block of the memory cells in the storage device to determine current read values in response to applying the reference voltage. A symbol is generated for each of the read memory cells by combining the determined current read value with at least one value saved during the previous iteration. The symbols are used to determine bit reliability metrics for the block of memory cells. The bit reliability metrics are decoded. In response to the decoding failing, an additional iteration of the decoding operation is performed.
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Information query
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