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Data accessing method for flash memory storage device having data perturbation module, and storage system and controller using the same
US9213636B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9213636-B2 |
| Application number | US-201414558190-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2014 |
| Priority date | Jul 9, 2008 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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A data accessing method, and a storage system and a controller using the same are provided. The data accessing method is suitable for a flash memory storage system having a data perturbation module. The data accessing method includes receiving a read command from a host and obtaining a logical block to be read and a page to be read from the read command. The data accessing method also includes determining whether a physical block in a data area corresponding to the logical block to be read is a new block and transmitting a predetermined data to the host when the physical block corresponding to the logical block to be read is a new block. Thereby, the host is prevented from reading garbled code from the flash memory storage system having the data perturbation module.
First claim
Opening claim text (preview).
What is claimed is: 1. A data accessing method, for a flash memory storage device having a data perturbation module, wherein a flash memory of the flash memory storage device has a plurality of blocks, the data accessing method comprising: receiving a read command from a host, wherein the read command indicates reading data from a logical block and the logical block has not been written with data after a card activation process; and transmitting a predetermined data to the host…
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- G06F12/1408Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9213636B2 cover?
- A data accessing method, and a storage system and a controller using the same are provided. The data accessing method is suitable for a flash memory storage system having a data perturbation module. The data accessing method includes receiving a read command from a host and obtaining a logical block to be read and a page to be read from the read command. The data accessing method also includes …
- Who is the assignee on this patent?
- Phison Electronics Corp
- What technology area does this patent fall under?
- Primary CPC classification G06F12/1408. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 15 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).