KR20070104874A - 기억장치 - Google Patents
기억장치 Download PDFInfo
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- KR20070104874A KR20070104874A KR1020070102128A KR20070102128A KR20070104874A KR 20070104874 A KR20070104874 A KR 20070104874A KR 1020070102128 A KR1020070102128 A KR 1020070102128A KR 20070102128 A KR20070102128 A KR 20070102128A KR 20070104874 A KR20070104874 A KR 20070104874A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/0292—User address space allocation, e.g. contiguous or non contiguous base addressing using tables or multilevel address translation means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/20—Employing a main memory using a specific memory technology
- G06F2212/202—Non-volatile memory
- G06F2212/2022—Flash memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/72—Details relating to flash memory management
- G06F2212/7201—Logical to physical mapping or translation of blocks or pages
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Memory System (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Debugging And Monitoring (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Description
Claims (6)
- 물리 블록을 복수 개 포함하는 1 이상의 비휘발성 메모리와,상기 비휘발성 메모리로부터 선택한 복수의 물리 블록을 기록 물리 블록군으로 하고, 상기 기록 물리 블록군을 복수의 물리 블록에 걸쳐 소정 페이지 수마다 분할한 단위영역을 논리 블록으로서 관리하고, 상기 논리 블록에 논리 어드레스를 할당하는 논리 블록 관리수단과,상기 논리 어드레스에 의거하여 상기 논리 블록의 기억 위치를 특정하는 어드레스 제어수단과,상기 어드레스 제어수단의 특정에 따라서 상기 비휘발성 메모리에 대해 데이터의 기록/판독을 행하는 데이터 기록/판독수단을 구비하는 것을 특징으로 하는 기억장치.
- 제 1 항에 있어서, 상기 논리 블록 관리수단은,데이터 입출력 장치로부터 기록 요구와 논리 어드레스를 접수하면,상기 논리 블록을 기록가능한 상기 기록 물리 블록군을 결정하여, 상기 기록 물리 블록군 중에서 논리 블록을 구성하는 페이지의 연결을 나타내는 연쇄정보를 생성하고, 상기 연쇄정보를 상기 비휘발성 메모리에 기록하는 것을 특징으로 하는 기억 장치.
- 제 2 항에 있어서, 상기 논리 블록 관리수단은 동일 논리 블록을 구성하는 일부의 페이지에 복수의 상기 연쇄정보를 기록하는 것을 특징으로 하는 기억장치.
- 제 1 항에 있어서, 상기 논리 블록 관리수단은,상기 논리 블록 단위로 데이터의 유효무효를 관리하고, 그 유효무효의 결과를 보유하는 보유수단을 갖는 것을 특징으로 하는 기억장치.
- 제 1 항에 있어서, 상기 논리 블록 관리수단은,상기 논리 블록 단위로 데이터의 유효무효를 관리하는 논리 블록 테이블을 갖고,상기 기록 물리 블록군 안에 구성된 상기 논리 블록이 상기 논리 블록 테이블 상에서 소정 수 이상 「무효」로 되어 있는 물리 블록군을 소거 물리 블록군으로서 선택하고,상기 논리 블록 테이블 상에서 「유효」로 되어 있는 논리 블록의 데이터를 상기 소거 물리 블록군과는 별개의 물리 블록군에 퇴피한 후, 상기 소거 물리 블록군을 소거하는 것을 특징으로 하는 기억장치.
- 제 5 항에 있어서, 상기 논리 블록 관리수단은,물리 블록이 불량인지 여부를 판정하는 불량 물리 블록 판단수단과,불량 물리 블록을 검출한 경우에 이 물리 블록을 포함하여 구성되는 복수의 논리 블록을 모두 논리 블록 테이블에서는 「유효」로 등록하는 유효상태 설정수단을 구비하는 것을 특징으로 하는 기억장치.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2001083104 | 2001-03-22 | ||
JPJP-P-2001-00083104 | 2001-03-22 | ||
JP2001257349 | 2001-08-28 | ||
JPJP-P-2001-00257349 | 2001-08-28 | ||
JP2001260250 | 2001-08-29 | ||
JPJP-P-2001-00260250 | 2001-08-29 |
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KR1020020015575A Division KR100862584B1 (ko) | 2001-03-22 | 2002-03-22 | 기억장치 |
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KR1020080099593A Division KR20080094882A (ko) | 2001-03-22 | 2008-10-10 | 기억장치 |
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KR20070104874A true KR20070104874A (ko) | 2007-10-29 |
KR100880415B1 KR100880415B1 (ko) | 2009-01-30 |
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KR1020020015575A KR100862584B1 (ko) | 2001-03-22 | 2002-03-22 | 기억장치 |
KR1020070102128A KR100880415B1 (ko) | 2001-03-22 | 2007-10-10 | 기억장치 |
KR1020080099593A KR20080094882A (ko) | 2001-03-22 | 2008-10-10 | 기억장치 |
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KR1020020015575A KR100862584B1 (ko) | 2001-03-22 | 2002-03-22 | 기억장치 |
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KR1020080099593A KR20080094882A (ko) | 2001-03-22 | 2008-10-10 | 기억장치 |
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US (2) | US6938144B2 (ko) |
EP (1) | EP1244019A3 (ko) |
JP (2) | JP4015866B2 (ko) |
KR (3) | KR100862584B1 (ko) |
CN (1) | CN1276358C (ko) |
TW (1) | TW564346B (ko) |
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US6721843B1 (en) * | 2000-07-07 | 2004-04-13 | Lexar Media, Inc. | Flash memory architecture implementing simultaneously programmable multiple flash memory banks that are host compatible |
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2002
- 2002-03-20 US US10/101,268 patent/US6938144B2/en not_active Ceased
- 2002-03-21 CN CNB021079013A patent/CN1276358C/zh not_active Expired - Lifetime
- 2002-03-21 TW TW091105420A patent/TW564346B/zh not_active IP Right Cessation
- 2002-03-21 EP EP02252034A patent/EP1244019A3/en not_active Withdrawn
- 2002-03-22 JP JP2002080380A patent/JP4015866B2/ja not_active Expired - Lifetime
- 2002-03-22 KR KR1020020015575A patent/KR100862584B1/ko active IP Right Grant
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2007
- 2007-07-27 JP JP2007196755A patent/JP4384682B2/ja not_active Expired - Lifetime
- 2007-08-30 US US11/896,278 patent/USRE42263E1/en not_active Expired - Lifetime
- 2007-10-10 KR KR1020070102128A patent/KR100880415B1/ko active IP Right Grant
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2008
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Also Published As
Publication number | Publication date |
---|---|
TW564346B (en) | 2003-12-01 |
EP1244019A3 (en) | 2004-11-10 |
JP4384682B2 (ja) | 2009-12-16 |
CN1276358C (zh) | 2006-09-20 |
JP2003150443A (ja) | 2003-05-23 |
EP1244019A2 (en) | 2002-09-25 |
US20020156988A1 (en) | 2002-10-24 |
KR100862584B1 (ko) | 2008-10-09 |
KR20080094882A (ko) | 2008-10-27 |
USRE42263E1 (en) | 2011-03-29 |
JP2007280431A (ja) | 2007-10-25 |
JP4015866B2 (ja) | 2007-11-28 |
KR100880415B1 (ko) | 2009-01-30 |
KR20020075291A (ko) | 2002-10-04 |
CN1376980A (zh) | 2002-10-30 |
US6938144B2 (en) | 2005-08-30 |
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