臺灣博碩士論文加值系統

快閃記憶體有很多吸引人的特性，例如：防震、低耗電、非揮發性、體積小、重量輕，存取速度快…等等優點。但依然存在一些缺點，例如，寫入的基本區塊小而抹除的基本區塊卻很大，若非經過抹除，不能寫入已有資料存在的區塊，此外每個區塊被抹除的次數是有限的。但是，由於快閃記憶體有這麼多優點，因此總是被用於嵌入式系統或者行動裝置上之儲存媒介。除此之外，數位內容在我們的生活中已經漸趨重要並且佔有一席之地，且各種數位內容的使用權管理方法也經常被探討。因此，我們提出了一個管理數位內容的新方法。而快閃記憶體亦被廣泛地用於儲存數位內容，所以在論文當中，我們提出了一個新的想法。針對快閃記憶體的效能和可靠度這兩方面提出了一個新的架構。在快閃記憶體上使用多個匯流排和錯誤更正群組的技術。使用多個匯流排以增進資料輸出的效能。而使用錯誤更正群組以更正更多的錯誤進而提高資料儲存的可靠度。

Flash memory has attractive features such as shock resistance, low power consumption, non-volatility, small size, light weight, and fast access speed. However, it has drawbacks such as a write-once/bulk-erase device, no in-place update, and limited erase cycles. Because of so many advantages, flash memory always plays the part of data storage systems in mobile devices and embedded systems. Meanwhile, digital content is getting more and more important in our life. The issues of usage rights management of digital content are usually discussed. Therefore, we propose a new system for managing digital content. Moreover, flash memory is used popularly for storing digital content. We focus on the performance and the reliability of flash memory. Furthermore, we propose a new architecture of using multiple buses and ECC groups. The multiple buses architecture is for improving the I/O performance of flash memory. And the ECC groups on flash memory are for recovering more errors and providing higher reliability.

Introduction
Background and Related Work
The Usage Rights Management of Digital Content
Enhancing Performance and Reliability with Multiple Buses
Performance Evaluation
Conclusion

% This is Bib Entry, and it is useful for LaTex :)
%
@article{rose92,
author = "M. Rosenblum and J. K. Ousterhout",
title = "The design and implementation of a log-structured file system",
journal = "ACM Transactions on Computer Systems",
volume = "10",
number = "1",
pages = "26--52",
year = "1992"
}
@inproceedings{wu94,
author = "M. Wu and W. Zwaenepoel",
title = "{eNVy}: a non-volatile, main memory storage system",
booktitle = "Proc. of the 6th International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS)",
pages = "86--97",
month = "October",
year = "1994"
}
@inproceedings{douglis94,
author = "F. Douglis and R. Caceres and F. Kaashoek and K. Li and B. Marsh and J. A. Tauber",
title = "Storage alternatives for mobile computers",
booktitle = "Proc. of the 1st Symposium on Operating Systems Design and Implementation (OSDI)",
pages = "25--37",
month = "November",
year = "1994"
}
@inproceedings{kjelso95,
author = "M. Kjelso and S. Jones",
title = "Memory management in flash-memory disks with data compression",
booktitle = "Proc. of International Workshop on Memory Management (IWMM '95)",
pages = "399--413",
month = "September",
year = "1995"
}
@inproceedings{kawaguchi95,
author = "A. Kawaguchi and S. Nishioka and H. Motoda",
title = "A flash-memory based file system",
booktitle = "Proc. of the {USENIX} 1995 Winter Conference",
pages = "155--164",
month = "January",
year = "1995"
}
@inproceedings{chiang97mfm,
author = "M.-L. Chiang and Paul C.-H. Lee and R.-C. Chang",
title = "Managing flash memory in personal communication devices",
booktitle = "Proc. of the 1997 IEEE International Symposium on Consumer Electronics (ISCE '97)",
pages = "177--182",
month = "December",
year = "1997"
}
@inproceedings{chiang98dm,
author = "M.-L. Chiang and Paul C.-H. Lee and R.-C. Chang",
title = "Data management in a flash memory based storage server",
booktitle = "Proc. of the 1998 International Computer Symposium (ICS'98)",
month = "December",
year = "1998"
}
@article{chiang99cpm,
author = "M.-L. Chiang and R.-C. Chang",
title = "Cleaning policies in mobile computers using flash memory",
journal = "The Journal of Systems and Software",
volume = "48",
number = "3",
pages = "213--231",
month = "November",
year = "1999"
}
@article{chiang99udc,
author = "M.-L. Chiang and Paul C.-H. Lee and R.-C. Chang",
title = "Using data clustering to improve cleaning performance for flash memory",
journal = "Software Practice and Experience",
volume = "29",
number = "3",
pages = "267--290",
month = "March",
year = "1999"
}
@inproceedings{kim99,
author = "H.-J. Kim and S.-G. Lee",
title = "A new flash memory management for flash storage system",
booktitle = "Proc. of the 23rd Annual International Computer Software and Applications Conference (COMSAC '99)",
pages = "284--289",
month = "October",
year = "1999"
}
@article{kim02,
author = "H.-J. Kim and S.-G. Lee",
title = "An effective flash memory manager for reliable flash memory space management",
journal = "IEICE Transactions on Information \& Systems",
volume = "E85-D",
number = "6",
pages = "950--964",
month = "June",
year = "2002"
}
@inproceedings{chang02strip,
author = "L.-P. Chang and T.-W. Kuo",
title = "An adaptive striping architecture for flash memory storage systems of embedded systems",
booktitle = "Proc. of the 8th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2002)",
pages = "187--196",
month = "September",
year = "2002"
}
@inproceedings{chang02rt,
author = "L.-P. Chang and T.-W. Kuo",
title = "A real-time garbage collection mechanism for flash memory storage system in embedded systems",
booktitle = "Proc. of the 8th International Conference on Real-Time Computing Systems and Applications (RTCSA 2002)",
month = "March",
year = "2002"
}
@inproceedings{chang01dva,
author = "L.-P. Chang and T.-W. Kuo and S.-W. Lo",
title = "A dynamic-voltage-adjustment mechanism in reducing the power consumption of flash memory for portable devices",
booktitle = "Proc. of IEEE Conference on Consumer Electronic (ICCE 2001)",
month = "June",
year = "2001"
}
@article{chang01patch,
author = "L.-P. Chang and T.-L. Lee and H.-H. Chen and H. Cheng",
title = "Data access method capable of reducing the number of erasing
to flash memory and data patch and access device using the same",
journal = "United States of America Patent US6256232",
month = "July",
year = "2001"
}
@misc{jffs2,
author = "David Woodhouse and Red Hat Inc.",
title = "{JFFS2: The Journalling Flash File System, version 2}",
howpublished = "\url{http://sources.redhat.com/jffs2/}"
}
@misc{jffs,
author = "Axis Communications AB",
title = "{JFFS @ developer.axis.com}",
howpublished = "\url{http://developer.axis.com/software/jffs/}"
}
@misc{yaffs,
author = "Toby Churchill Ltd",
title = "{YAFFS}",
howpublished = "\url{http://www.aleph1.co.uk/armlinux/projects/yaffs/}"
}
@misc{vsmtd,
author = "Thomas Gleixner",
title = "{NAND flash}",
howpublished = "\url{http://www.linux-mtd.infradead.org/tech/nand.html}"
}
@misc{vsmsys,
author = "Arie Tal and M-Systems Company",
title = "{Two flash technologies compared: NOR vs. NAND}",
howpublished = "\url{http://www.m-sys.com/files/documentation/doc/NOR_vs_NAND.pdf}"
}
@misc{mtd,
author = "David Woodhouse",
title = "{Memory Technology Device (MTD) subsystem for linux}",
howpublished = "\url{http://www.linux-mtd.infradead.org/}"
}
@misc{trueffs,
author = "M-Systems Company",
title = "{TrueFFS technology}",
howpublished = "\url{http://www.m-sys.com/technology/TrueFFS.asp}"
}
@misc{ftl,
author = "Intel Corporation",
title = "{Understanding the flash translation layer (FTL) specification}",
howpublished = "\url{http://www.intel.com/design/flcomp/applnots/29781602.pdf}"
}
@misc{flashintel,
author = "Intel Corporation",
title = "{The Intel(R) flash memory articles}",
howpublished = "\url{http://www.intel.com/design/flash/articles/index.htm}"
}
@misc{flashsamsung,
author = "Samsung Electronics Company",
title = "{K9K2G08Q0M 256M * 8 Bit NAND flash memory datasheet}",
howpublished = "\url{http://www.samsung.com/Products/Semiconductor/Flash/NAND/2Gbit/K9K2G08Q0M/K9K2GXXX0M.PDF}"
}
@misc{linuxdevices,
author = "LinuxDevices.com and DeviceForge LLC",
title = "{Articles \& white papers about Linux in embedded applications}",
howpublished = "\url{http://linuxdevices.com/articles/index.html}"
}
@misc{mram,
author = "NVE Corporation",
title = "{MRAM intellectual property}",
howpublished = "\url{http://www.nve.com/otherbiz/mram.html}"
}
@misc{feram,
author = "Ali Sheikholeslami",
title = "{FeRAM tutorial}",
howpublished = "\url{http://www.eecg.toronto.edu/~ali/ferro/tutorial.html}"
}
@article{p1,
author = "J. Erickson",
title = "System and method for managing copyrighted electronic media",
journal = "United States of America Patent US5765152",
month = "June",
year = "1998"
}
@article{p2,
author = "J. Lebourgeois",
title = "Digital product rights management technique ",
journal = "World IPO Patent WO9842098",
month = "September",
year = "1998"
}
@article{p3,
author = "R. Abburiand and M. Peinado and J. Bell",
title = "Structure of digital rights management {(DRM)} system ",
journal = "World IPO Patent WO0058811 ",
month = "October",
year = "2000"
}
@article{p4,
author = "M. Kovac and J. Orsulic and D. Runje and T. Uzelac and B. Litman",
title = "System and method for secure electronic digital rights management, secure transaction management and content distribution ",
journal = "World IPO Patent WO0141027 ",
month = "June",
year = "2001"
}
@article{p5,
author = "J. Lebourgeois",
title = "Digital rights management system operating on computing device and having black box tied to computing device ",
journal = "World IPO Patent WO0152021 ",
month = "July",
year = "2001"
}
@article{p6,
author = "H. Matsushima and S. Harada and T. Hirota and M. Kozuka and Y. Uesaka and M. Nikaido",
title = "Recording medium, license management apparatus, and recording and playback apparatus ",
journal = "Australia Patent AU6810501 ",
month = "December",
year = "2001"
}
@article{p7,
author = "M. Peinado",
title = "Binding a digital license to a portable device or the like in a digital rights management {(DRM)} system and checking out / checking in the digital license to / from the portable device or the like ",
journal = "United States of America Patent US2002013772 ",
month = "January",
year = "2002"
}
@article{p8,
author = "C.-M. Jun and A. Rajasekharan and G. Story and R. Kovesdi",
title = "License management for digital content ",
journal = "United States of America Patent US2002046181 ",
month = "April",
year = "2002"
}