Memory controller having state shaping engine and method of operating same
US-2015058536-A1 · Feb 26, 2015 · US
Cell-level statistics collection for detection and decoding in flash memories
US9502117B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9502117-B2 |
| Application number | US-201313778728-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2013 |
| Priority date | Mar 14, 2011 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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Abstract
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Methods and apparatus are provided for collecting cell-level statistics for detection and decoding in flash memories. Data from a flash memory device is processed by obtaining one or more read values for a plurality of bits in a page of the flash memory device; and generating cell-level statistics for the flash memory device based on a probability that a data pattern was read from the plurality of bits given that a particular pattern was written to the plurality of bits. The cell-level statistics are optionally generated substantially simultaneously with a reading of the read values, for example, as part of a read scrub process. The cell-level statistics can be used to convert the read values for the plurality of bits to a reliability value for a bit among the plurality of bits.
First claim
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We claim: 1. A method for processing data from a flash memory device, comprising the steps of: obtaining one or more read values for a plurality of bits in one or more pages of said flash memory device; and generating cell-level statistics for said flash memory device based on a probability that a data pattern was read from said plurality of bits given that a particular pattern was written to said plurality of bits. 2. The method of claim 1 , wherein said…
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Physics · mapped topic
- G11C11/5642Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9502117B2 cover?
- Methods and apparatus are provided for collecting cell-level statistics for detection and decoding in flash memories. Data from a flash memory device is processed by obtaining one or more read values for a plurality of bits in a page of the flash memory device; and generating cell-level statistics for the flash memory device based on a probability that a data pattern was read from the plurality…
- Who is the assignee on this patent?
- Seagate Technology Llc
- What technology area does this patent fall under?
- Primary CPC classification G11C11/5642. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 22 2016 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).