Finding Read Disturbs on Non-Volatile Memories
US-2015262714-A1 · Sep 17, 2015 · US
Method and apparatus for relocating data in non-volatile memory
US9239757B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9239757-B2 |
| Application number | US-201414292372-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2014 |
| Priority date | May 30, 2014 |
| Publication date | Jan 19, 2016 |
| Grant date | Jan 19, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Apparatus and methods implemented therein are disclosed for relocating data stored in pages of a non-volatile memory. The number of memory chunks with invalid data in an SLC type first page is determined and if the number is above a first threshold and above a second threshold, a bit error rate (BER) for the valid data in the set of memory chunks of the first page is compared with a first BER threshold. If the BER is below the first BER threshold, an error correcting code (ECC) for valid data in a set of memory chunks of a second page is computed and the invalid data of the first page with valid data is replaced with valid data from the second page and the computed ECC. The valid data of the first and second page is relocated to a third page.
First claim
Opening claim text (preview).
We claim: 1. A method for relocating data in a memory system comprising a memory and a memory controller, wherein the memory comprises a set of pages wherein each page comprises a set of memory chunks, the method comprising: determining by the memory controller that a first page is an SLC type page; in response to determining that the first page is an SLC type page, determining by the memory controller a number of memory chunks with invalid data in the first page; in response…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
- G06F11/1068Primary
Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9239757B2 cover?
- Apparatus and methods implemented therein are disclosed for relocating data stored in pages of a non-volatile memory. The number of memory chunks with invalid data in an SLC type first page is determined and if the number is above a first threshold and above a second threshold, a bit error rate (BER) for the valid data in the set of memory chunks of the first page is compared with a first BER t…
- Who is the assignee on this patent?
- Sandisk Technologies Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F11/1068. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 19 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).