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1. (CN1658171) Faster write operations to nonvolatile memory by manipulation of frequently accessed sectors

Office : China
Application Number: 200410101986.8 Application Date: 10.12.2004
Publication Number: 1658171 Publication Date: 24.08.2005
Grant Number: 1658171 Grant Date: 28.04.2010
Publication Kind : B
IPC:
G06F 12/00
G11C 16/04
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
12
Accessing, addressing or allocating within memory systems or architectures
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
16
Erasable programmable read-only memories
02
electrically programmable
04
using variable threshold transistors, e.g. FAMOS
CPC:
G06F 3/0613
G06F 3/064
G06F 3/0679
G06F 11/1068
G06F 12/0246
G11C 8/12
G11C 16/08
G11C 16/102
G11C 29/765
G11C 29/82
Applicants: Lexar Media Inc.
雷克萨媒体公司
Inventors: Estakhri Petro
P·埃斯塔克里
Nemazie Sam
S·内马兹
Agents: yang kai wang zhongzhong
中国专利代理(香港)有限公司 72001
中国专利代理(香港)有限公司 72001
Priority Data: 10741129 19.12.2003 US
Title: (EN) Faster write operations to nonvolatile memory by manipulation of frequently accessed sectors
(ZH) 通过控制频繁受访问扇区对非易失性存储器的更快写操作
Abstract: front page image
(EN) An embodiment of the present invention includes a digital equipment system having a host for sending write commands to write files having sector information and having a controller device responsive to the commands for writing and updating FSInfo sector information. The controller controls a nonvolatile memory system organized into blocks, each block including a plurality of sector locations for storing sector information, a particular free block, designated for storing FSInfo sector information. Upon updating of the FSInfo sector, the updated FSInfo sector information is written to a next free sector of the dedicated block thereby avoiding moving the sectors of the particular block to another block, hence, improving system performance.
(ZH)

本发明的一个实施例包括一种包括将写命令发送到具有扇区信息的写文件的主机以及与对FSInfo扇区信息执行写操作和更新操作的命令相对应的控制器装置。所述控制器控制组织为块的非易失性存储器系统,每个块包含多个用于存储扇区信息的扇区单元以及一个指定用于存储FSInfo扇区信息的特定自由块。当更新所述FSInfo扇区时,将所述更新的FSInfo扇区信息写入所述专用块的下一自由扇区,从而避免将所述特定块的所述扇区传送到另一个块,以此改善系统性能。


Also published as:
EP1548599JP2005182793