Invention Grant
- Patent Title: Iterative soft information correction and decoding
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Application No.: US14973603Application Date: 2015-12-17
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Publication No.: US10372529B2Publication Date: 2019-08-06
- Inventor: Ying Yu Tai , Seungjune Jeon , Jiangli Zhu
- Applicant: SanDisk Enterprise IP LLC
- Applicant Address: US TX Plano
- Assignee: Sandisk Technologies LLC
- Current Assignee: Sandisk Technologies LLC
- Current Assignee Address: US TX Plano
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G06F11/10
- IPC: G06F11/10 ; H03M13/29 ; H03M13/11 ; G11C29/52 ; H03M13/00 ; G11C11/56 ; G11C29/04

Abstract:
A method is provided that includes performing first decoding operations on data obtained from a plurality of units of memory using soft information values for the plurality of units of memory, where the plurality of units of memory includes an error correction stripe. The method further includes determining that two or more units of memory have uncorrectable errors. The method further includes updating a soft information value for a first unit of memory in accordance with a magnitude of a soft information value for a second unit and a direction based on parity of the error correction stripe excluding the first unit, where the first unit of memory and the second unit of memory are included in the two or more units of memory that have uncorrectable errors. The method further includes performing a second decoding operation on data obtained from the first unit using the updated soft information value.
Public/Granted literature
- US20160306694A1 Iterative Soft Information Correction and Decoding Public/Granted day:2016-10-20
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