WO2007073538A3 - Non-volatile memories and methods with data alignment in a directly mapped file storage system - Google Patents

Non-volatile memories and methods with data alignment in a directly mapped file storage system Download PDF

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Publication number
WO2007073538A3
WO2007073538A3 PCT/US2006/061944 US2006061944W WO2007073538A3 WO 2007073538 A3 WO2007073538 A3 WO 2007073538A3 US 2006061944 W US2006061944 W US 2006061944W WO 2007073538 A3 WO2007073538 A3 WO 2007073538A3
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WO
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Patent type
Prior art keywords
file
page
data
offset
portion
Prior art date
Application number
PCT/US2006/061944
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French (fr)
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WO2007073538A2 (en )
Inventor
Sergey Anatolievich Gorobets
Original Assignee
Sandisk Corp
Sergey Anatolievich Gorobets
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02Addressing or allocation; Relocation
    • G06F12/0223User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023Free address space management
    • G06F12/0238Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72Details relating to flash memory management
    • G06F2212/7202Allocation control and policies

Abstract

In the file storage system, each portion belonging to a data file is identified by its file ID and an offset along the data file, where the offset is a constant for the file and every file data portion is always kept at the same position within a memory page to be read or programmed in parallel. In this way, every time a page containing a file portion is read and copy to another page, the data in it is always page-aligned, and each bit within the file portion can always be manipulated by the same sense amplifier and same set data latches within the same memory column. In a preferred implementation, the page alignment is such that (offset within a page) = (data offset within a file) MOD (page size). Any gaps that may exist in page can be padded with any existing page-aligned valid data.
PCT/US2006/061944 2005-12-21 2006-12-12 Non-volatile memories and methods with data alignment in a directly mapped file storage system WO2007073538A3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US11316137 US20070143566A1 (en) 2005-12-21 2005-12-21 Non-volatile memories with data alignment in a directly mapped file storage system
US11/316,261 2005-12-21
US11316261 US20070143567A1 (en) 2005-12-21 2005-12-21 Methods for data alignment in non-volatile memories with a directly mapped file storage system
US11/316,137 2005-12-21

Publications (2)

Publication Number Publication Date
WO2007073538A2 true WO2007073538A2 (en) 2007-06-28
WO2007073538A3 true true WO2007073538A3 (en) 2008-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/061944 WO2007073538A3 (en) 2005-12-21 2006-12-12 Non-volatile memories and methods with data alignment in a directly mapped file storage system

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WO (1) WO2007073538A3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592669A (en) * 1990-12-31 1997-01-07 Intel Corporation File structure for a non-volatile block-erasable semiconductor flash memory
US20040073727A1 (en) * 2002-07-29 2004-04-15 M-Systems Flash Disk Pioneers, Ltd. Portable storage media as file servers
US20050141313A1 (en) * 2003-12-30 2005-06-30 Gorobets Sergey A. Non-volatile memory and method with memory planes alignment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592669A (en) * 1990-12-31 1997-01-07 Intel Corporation File structure for a non-volatile block-erasable semiconductor flash memory
US20040073727A1 (en) * 2002-07-29 2004-04-15 M-Systems Flash Disk Pioneers, Ltd. Portable storage media as file servers
US20050141313A1 (en) * 2003-12-30 2005-06-30 Gorobets Sergey A. Non-volatile memory and method with memory planes alignment

Also Published As

Publication number Publication date Type
WO2007073538A2 (en) 2007-06-28 application

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