Invention Grant
- Patent Title: Error recovery using adaptive LLR lookup table
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Application No.: US17204079Application Date: 2021-03-17
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Publication No.: US11528039B2Publication Date: 2022-12-13
- Inventor: Han Zhang , Chenrong Xiong , Jie Chen
- Applicant: Innogrit Technologies Co., Ltd.
- Applicant Address: CN Shanghai
- Assignee: Innogrit Technologies Co., Ltd.
- Current Assignee: Innogrit Technologies Co., Ltd.
- Current Assignee Address: CN Shanghai
- Agency: IPro, PLLC
- Main IPC: H03M13/39
- IPC: H03M13/39 ; H03K19/17728 ; H03M13/11

Abstract:
Systems and methods are provided for performing error recovery using LLRs generated from multi-read operations. A method may comprise selecting a set of decoding factors for a multi-read operation to read a non-volatile storage device multiple times. The set of decoding factors may include a total number of reads, an aggregation mode for aggregating read results of multiple reads, and whether the read results include soft data. The method may further comprise issuing a command to the non-volatile storage device to read user data according to the set of decoding factors, generating a plurality of Log-Likelihood Ratio (LLR) values using a mapping engine from a pre-selected set of LLR value magnitudes based on the set of decoding factors, obtaining an aggregated read result in accordance with the aggregation mode and obtaining an LLR value from the plurality of LLR values using the aggregated read result as an index.
Public/Granted literature
- US20220302932A1 ERROR RECOVERY USING ADAPTIVE LLR LOOKUP TABLE Public/Granted day:2022-09-22
Information query
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