EP 1665053 A1 20060607 - MANAGEMENT OF ERASED BLOCKS IN FLASH MEMORIES
Title (en)
MANAGEMENT OF ERASED BLOCKS IN FLASH MEMORIES
Title (de)
VERWALTUNG GEL SCHTER BL CKE IN FLASH-SPEICHERN
Title (fr)
GESTION DE BLOCS EFFACES DANS DES MEMOIRES FLASH
Publication
Application
Priority
- EP 2004051782 W 20040812
- DE 10341618 A 20030910
Abstract (en)
[origin: WO2005026963A1] The invention relates to a method for managing the erasure process in a memory system comprising individually erasable memory blocks (SB) that can be addressed with the aid of real memory block addresses (SBA). Said memory blocks are sub-divided into a plurality of writable sectors and can be addressed by means of an address conversion that uses an allocator table (ZT) to convert logical block addresses (LBA) into one of the respective memory block addresses (SBA). According to the invention, the allocator table (ZT) is sub-divided into at least one useful data area (NB) and a buffer block area (BB). The invention is characterised in that a first identifier erased (ER), indicating the physical erasure status and a second identifier content erased (CER), indicating the logical erasure status, is set for each memory block (SB) in the allocator table (ZT).
IPC 1-7
IPC 8 full level
G06F 12/02 (2006.01)
CPC (source: EP KR US)
G06F 12/00 (2013.01 - KR); G06F 12/02 (2013.01 - KR); G06F 12/0246 (2013.01 - EP US); G06F 2212/7201 (2013.01 - EP US); G06F 2212/7203 (2013.01 - EP US); G06F 2212/7205 (2013.01 - EP US); G06F 2212/7209 (2013.01 - EP US)
Citation (search report)
See references of WO 2005026963A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005026963 A1 20050324; CA 2536992 A1 20050324; CN 1849590 A 20061018; DE 10341618 A1 20050504; EP 1665053 A1 20060607; JP 2007505415 A 20070308; KR 20060130013 A 20061218; TW 200519596 A 20050616; US 2009125668 A1 20090514
DOCDB simple family (application)
EP 2004051782 W 20040812; CA 2536992 A 20040812; CN 200480026013 A 20040812; DE 10341618 A 20030910; EP 04766485 A 20040812; JP 2006530229 A 20040812; KR 20067004108 A 20060228; TW 93126506 A 20040902; US 57159004 A 20040812