US 2005/0169053 A1 · Window-based flash memory storage system and management and access methods thereof

Abstract

A window-based flash memory storage system and a management and an access method therefor are proposed. The window-based flash memory storage system includes a window-based region and a redundant reserved region; wherein the window-based region is used to store a number of windows, each window being associated with a number of physical blocks. The redundant reserved region includes a dynamic-link area, a window-information area, a dynamic-link information area, and an boot-information area; wherein the dynamic-link area includes a plurality of dynamic allocation blocks, each being allocatable to any window. The window-information area is used to store a specific window-information set that is dedicated to a certain window within a specific range of data storage space. The dynamic-link information area is used to record the status of the allocation of the dynamic allocation blocks to the windows.

Claims8

Dependent claims

1-15. (canceled)

A management method for a window-based flash memory storage system having a flash memory unit partitioned into a number of windows, each of at least one of the windows respectively having a mapping information set as a mapping formation stored in the flash memory unit, and an access controller communicating with a data-access request component and managing the flash memory unit, the management method comprising:

selecting at least a portion of the windows as a selected window set;
loading a corresponding portion of the mapping information with respect to the selected window set into a memory area within the access controller;
and
updating the corresponding portion of the mapping information with respect to at least one window of the selected window set when another widow that is to be accessed by the data-access requesting component but is not in the current selected window set.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/096,997Filed 31 Mar 2005

Priority

TW 901191997 Aug 2001

Published

4 Aug 2005

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G06F 12/0246
Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory: in block erasable memory, e.g. flash memory
G06F 11/1068
In individual solid state devices: in sector programmable memories, e.g. flash disk
G06F 12/0292
User address space allocation, e.g. contiguous or non contiguous base addressing: using tables or multilevel address translation means
G06F 11/1435
At system level: using file system or storage system metadata

Family

Application09/990,392Continuation · filed 20 Nov 2001

Application10/632,195Division · filed 31 Jul 2003

Application10/632,195Continuation · filed 31 Jul 2003

Application11/096,997Division · filed 31 Mar 2005

US 2003/0033471 A1Published application

US 2004/0024957 A1Published application

US 6,718,430 B2Related patent

US 7,117,332 B2Related patent

US 7,237,057 B2Related patent

US 2005/0169053 A1This patent

From the US filing history. Foreign family members aren’t listed.

Window-based flash memory storage system and management and access methods thereof

Life of this patent

Window-based flash memory storage system and management and access methods thereof

Life of this patent

Abstract

Claims8