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1. (US6145051) Moving sectors within a block of information in a flash memory mass storage architecture

Office : United States of America
Application Number: 09264340 Application Date: 08.03.1999
Publication Number: 6145051 Publication Date: 07.11.2000
Grant Number: 6145051 Grant Date: 07.11.2000
Publication Kind : A
IPC:
G06F 12/02
G06F 12/10
G06F 3/06
G06F 11/10
G11C 16/06
G11C 16/08
G11C 16/10
G11C 29/00
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
12
Accessing, addressing or allocating within memory systems or architectures
02
Addressing or allocation; Relocation
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
12
Accessing, addressing or allocating within memory systems or architectures
02
Addressing or allocation; Relocation
08
in hierarchically structured memory systems, e.g. virtual memory systems
10
Address translation
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
06
Digital input from, or digital output to, record carriers
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
11
Error detection; Error correction; Monitoring
07
Responding to the occurrence of a fault, e.g. fault tolerance
08
Error detection or correction by redundancy in data representation, e.g. by using checking codes
10
Adding special bits or symbols to the coded information, e.g. parity check, casting out nines or elevens
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
16
Erasable programmable read-only memories
02
electrically programmable
06
Auxiliary circuits, e.g. for writing into memory
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
16
Erasable programmable read-only memories
02
electrically programmable
06
Auxiliary circuits, e.g. for writing into memory
08
Address circuits; Decoders; Word-line control circuits
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
16
Erasable programmable read-only memories
02
electrically programmable
06
Auxiliary circuits, e.g. for writing into memory
10
Programming or data input circuits
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
29
Checking stores for correct operation; Testing stores during standby or offline operation
CPC:
G06F 3/0619
G06F 3/061
G06F 3/0613
G06F 3/064
G06F 3/0652
G06F 3/0679
G06F 11/1008
G06F 11/1068
G06F 12/023
G06F 12/0246
G06F 2211/109
G06F 2212/7201
G11C 8/12
G11C 16/08
G11C 16/102
G11C 29/765
G11C 29/82
Applicants: Lexar Media, Inc.
Inventors: Estakhri Petro
Iman Berhau
Ganjuei Ali R.
Agents: Imam Maryam
Priority Data: 08509706 31.07.1995 US
08831266 31.03.1997 US
Title: (EN) Moving sectors within a block of information in a flash memory mass storage architecture
Abstract: front page image
(EN)

A device is disclosed for storing mapping information for mapping a logical block address identifying a block being accessed by a host to a physical block address, identifying a free area of nonvolatile memory, the block being selectively erasable and having one or more sectors that may be individually moved. The mapping information including a virtual physical block address for identifying an "original" location, within the nonvolatile memory, wherein a block is stored and a moved virtual physical block address for identifying a "moved" location, within the nonvolatile memory, wherein one or more sectors of the stored block are moved. The mapping information further including status information for use of the "original" physical block address and the "moved" physical block address and for providing information regarding "moved" sectors within the block being accessed.