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High-throughput iterative decoding's defect scan in retry mode of storage system channel
US8996952B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8996952-B2 |
| Application number | US-201213723050-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2012 |
| Priority date | Jan 4, 2012 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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The present disclosure includes systems and techniques relating to decoding signals produced within a storage device. A described technique includes retrieving a first codeword from a storage medium, decoding the first codeword, performing a retry process when the decoding was not successful, and retrieving one or more second codewords from the storage medium during the retry process to at least maintain a drive throughput. The retry process can include identifying one or more data chunks within the first codeword having potential defects, generating an erasure mask based on the one or more data chunks, applying, based on a window, one or more erasures within one or more different regions of the first codeword based on one or more corresponding regions of the erasure mask to produce one or more versions of the first codeword, and decoding the one or more versions of the first codeword.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: retrieving a first codeword from a storage medium; decoding the first codeword; programming registers with information comprising multiple different locations of fixed defect chunks, a window length parameter, and a stepping size parameter; performing a retry process when the decoding was not successful; and retrieving one or more second codewords from the storage medium during the retry process to at least maintain a drive throu…
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Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8996952B2 cover?
- The present disclosure includes systems and techniques relating to decoding signals produced within a storage device. A described technique includes retrieving a first codeword from a storage medium, decoding the first codeword, performing a retry process when the decoding was not successful, and retrieving one or more second codewords from the storage medium during the retry process to at leas…
- Who is the assignee on this patent?
- Marvell World Trade Ltd
- What technology area does this patent fall under?
- Primary CPC classification G06F11/10. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).