Flash memory management method and flash memory controller and storage system using the same

US9037814B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9037814-B2
Application numberUS-69752510-A
CountryUS
Kind codeB2
Filing dateFeb 1, 2010
Priority dateDec 15, 2009
Publication dateMay 19, 2015
Grant dateMay 19, 2015

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Abstract

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A flash memory management method for managing a plurality of physical units of a flash memory chip is provided. The flash memory management method includes grouping a portion of the physical units into a data area and a spare area; configuring a plurality of logical units and setting mapping relationships between the logical units and the physical units of the data area. The flash memory management method further includes receiving data and writing the data into the physical unit mapped to a second logical unit among the logical units, and the data belongs to a first logical unit among logical units. Accordingly, the flash memory management method can effectively reduce the number of times for organizing valid data, thereby reducing the time for executing a host write-in command.

First claim

Opening claim text (preview).

What is claimed is: 1. A flash memory management method, for managing a plurality of physical units of a flash memory chip, the flash memory management method comprising: at least grouping a portion of the physical units into a data area and a spare area; configuring a plurality of logical units; setting mapping relationships between the logical units and the physical units of the data area, wherein each of the logical units maps one of the physical units in the data area and…

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What does patent US9037814B2 cover?
A flash memory management method for managing a plurality of physical units of a flash memory chip is provided. The flash memory management method includes grouping a portion of the physical units into a data area and a spare area; configuring a plurality of logical units and setting mapping relationships between the logical units and the physical units of the data area. The flash memory manage…
Who is the assignee on this patent?
Yeh Chih-Kang, Phison Electronics Corp
What technology area does this patent fall under?
Primary CPC classification G06F12/0246. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue May 19 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).