Method and apparatus for encoding and decoding of low density parity check codes
US-2024048158-A1 · Feb 8, 2024 · US
Data encoding in solid state storage devices
US8930798B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8930798-B2 |
| Application number | US-201113582768-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 23, 2011 |
| Priority date | Mar 30, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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Methods and apparatus are provided for encoding input data for recording in s-level storage of a solid state storage device, where s f 2. Input data words are encoded in groups of M input data words in accordance with first and second BCH codes to produce, for each group, a set of M first codewords of the first BCH code. The set of M first codewords is produced such that at least one predetermined linear combination of the M first codewords produces a second codeword of the second BCH code, this second BCH code being a sub-code of the first BCH code. The sets of M first codewords are then recorded in the s-level storage. If each of the first and second codewords comprises N q-ary symbols where q=p k , k is a positive integer and p is a prime number, the q-ary code alphabet can be matched to the s-ary storage by ensuring that q and s are u th and v th powers respectively of a common base r, where u and v are positive integers and k f u, whereby p (k/u)v =s.
First claim
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The invention claimed is: 1. A method for recording input data in s-level storage of a solid state storage device, where s f 2, the method comprising: encoding, by a processor, input data words in groups of M input data words in accordance with first and second BCH codes to produce, for each group, a set of M first codewords of the first BCH code such that a predetermined linear combination of the M first codewords produces a second codeword of the second BCH code, wherein the sec…
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Electricity · mapped topic
- H03M13/2906Primary
Electricity · mapped topic
Electricity · mapped topic
- G06F11/1072Primary
Physics · mapped topic
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- What does patent US8930798B2 cover?
- Methods and apparatus are provided for encoding input data for recording in s-level storage of a solid state storage device, where s f 2. Input data words are encoded in groups of M input data words in accordance with first and second BCH codes to produce, for each group, a set of M first codewords of the first BCH code. The set of M first codewords is produced such that at least one predetermi…
- Who is the assignee on this patent?
- Cideciyan Roy D, Eleftheriou Evangelos S, Mittelholzer Thomas, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H03M13/2906. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 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).