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1. (EP0980551) MOVING SECTORS WITHIN A BLOCK IN A FLASH MEMORY

Office : European Patent Office
Application Number: 98914371 Application Date: 31.03.1998
Publication Number: 0980551 Publication Date: 23.02.2000
Publication Kind : B1
Designated States: DE, FR, GB
Prior PCT appl.: Application Number:US1998006335 ; Publication Number: Click to see the data
IPC:
G06F 12/00
G06F 12/02
G06F 3/06
G06F 3/08
G06F 11/00
G06F 11/10
G06F 12/06
G06F 12/10
G06F 12/16
G11C 16/02
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
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
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
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
08
from or to individual record carriers, e.g. punched card
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
11
Error detection; Error correction; Monitoring
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
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
12
Accessing, addressing or allocating within memory systems or architectures
02
Addressing or allocation; Relocation
06
Addressing a physical block of locations, e.g. base addressing, module addressing, address space extension, memory dedication
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
12
Accessing, addressing or allocating within memory systems or architectures
16
Protection against loss of memory contents
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
16
Erasable programmable read-only memories
02
electrically programmable
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 3/061
G06F 3/0613
G06F 3/0619
G06F 3/064
G06F 3/0652
G06F 3/0679
G06F 11/1068
G06F 12/023
G06F 12/0246
G06F 2212/7201
G11C 16/08
G11C 16/102
G11C 29/765
G11C 29/82
G06F 12/0646
G06F 12/1036
G06F 2212/7209
Applicants: LEXAR MEDIA INC
Inventors: GANJUEI ALI R
ESTAKHRI PETRO
IMAN BERHANU
Priority Data: 83126697 31.03.1997 US
85884797 19.05.1997 US
9806335 31.03.1998 US
Title: (DE) VERSCHIEBBARE SEKTOREN IN EINEM SPEICHERBLOCK IN EINEM FLASH-SPEICHER
(EN) MOVING SECTORS WITHIN A BLOCK IN A FLASH MEMORY
(FR) SECTEURS MOBILES D'UN BLOC DE MEMOIRE FLASH
Abstract: front page image
(EN) A device (700) 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 (702) for identifying an 'original' location within the nonvolative memory where a block is stored and a moved virtual physical block address (704) for identifying a 'moved' location within the nonvolatile memory where one or more sectors of the stored block are moved. The mapping information further including status information (706, 712) for use of the 'original' physical block address and the 'moved' physical block address and for providing information (714) regarding 'moved' sectors within the block being accessed.
(FR) L'invention porte sur un dispositif (700) de stockage d'informations permettant d'établir une correspondance, d'une part, entre une adresse de bloc logique en cours d'accès par un hôte, et d'autre part, une adresse de bloc physique, en identifiant une zone libre de mémoire non volatile, le bloc pouvant être sélectivement effacé et comportant un ou plusieurs secteurs qui peuvent être déplacés individuellement. Les informations de mise en correspondance comprennent une adresse virtuelle (702) de bloc physique permettant d'identifier une position '$i(non mouvementée)', dans la mémoire non volatile un bloc étant enregistré et une adresse virtuelle (704) de bloc physique déplacée pour identifier une position '$i(non mouvementée)' dans la mémoire non volatile, et un ou plusieurs secteurs du bloc enregistré étant déplacés. Ces informations comprennent également des informations d'état (706-712) permettant d'utiliser l'adresse '$i(non mouvementée)' du bloc physique et l'adresse '$i(mouvementée)' du bloc physique et d'obtenir des informations (714) concernant les secteurs '$i(mouvementés)' dans le bloc en cours d'accès.
Also published as:
KR1020010005824EP2278471EP1717707JP2002508862 AU1998068738WO/1998/044420