Research on extremely high capacity storage systems by perpendicular hard disk drives

垂直硬盘超高容量存储系统研究

基本信息

  • 批准号:
    09355012
  • 负责人:
  • 金额:
    $ 20.67万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1999
  • 项目状态:
    已结题

项目摘要

High capacity storage system using perpendicular magnetic recording was investigated in order to give a solution for the bottle neck of capacity and data transfer rate of storage systems in multi-media and high speed network technology. In particular, evaluation of error rate for perpendicular magnetic recording system including signal processing was one of the most crucial issue.First heads and disks for experiments were prepared. A thin-film single-pole head on a flying slider, which could be adopted to practical application, was developed. Using the head as a write for perpendicular double layer disks, adaptability of MR head was investigated. Theoretical expression for the MR head response was derived to estimate read performance for any given head and disk. Next, read channel for the perpendicular storage was studied. We established a differential equalizer which transformed perpendicular step-like response into single peaking pulse and PRML error rate analyzer for the perpendicular head/disk system. Sufficient error rate at high densities more than 300 kFRPI was demonstrated. The results indicated that the single-pole head and double layer media with an MR head could be used in a practical high density storage systems.In order to increase attainable areal density, signal SNR limitation was explored. Theoretical approach employing Voronoi cell modeling for media indicated that the limitation was governed by media noise, which originated from finite size of magnetic structure of the perpendicular media. Therefore, it was predicted that fine magnetic structure brought higher signal SNR, i.e., better error rate at high densities.By above mentioned studies, potential of perpendicular magnetic recording for areal density of 100 Gbits/inchィイD12ィエD1 has been demonstrated in association with high resolution MR head and low noise perpendicular double layer media.
为了解决多媒体和高速网络技术中存储系统的容量和数据传输速率瓶颈问题,研究了垂直磁记录的大容量存储系统。尤其是包括信号处理在内的垂直磁记录系统的误码率评估是最关键的问题之一。首先制备了实验用磁头和磁盘。研制了一种可用于实际应用的飞行滑块单极薄膜磁头。利用该磁头作为垂直双层磁盘的写头,研究了磁流变头的适应性。推导了MR磁头响应的理论表达式,以估计任何给定磁头和磁盘的读取性能。其次,对垂直存储的读通道进行了研究。针对垂直磁头/磁盘系统,建立了将垂直阶跃响应转换为单峰值脉冲的差动均衡器和PRML误码率分析器。在高于300kFRPI的高密度下,证明了足够的误码率。结果表明,磁流变头的单极头和双层介质可以用于实用的高密度存储系统。为了提高可获得的面密度,探索了信号信噪比的限制。采用Voronoi胞腔模拟介质的理论方法表明,该极限是由介质噪声控制的,而介质噪声源于垂直介质的有限大小磁结构。通过上述研究,在高分辨率MR磁头和低噪声垂直双层介质的配合下,100Gbit/英寸的ィイD12ィエD1面密度的垂直磁记录的潜力已经被证明。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Y. Nakamura: "Technical Issues for Realization of Perpendicular Magnetic Recording"J. Magn. Soc. Jpn.. 21-S2125134. (1997)
Y. Nakamura:“实现垂直磁记录的技术问题”J。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
H.Muraoka: "Simplified Expression of Shielded MR Head Response for Double-Layer Perpendicular Medium"IEEE Trans. Magn.. 35・5. 2235-2237 (1999)
H. Muraoka:“双层垂直介质的屏蔽 MR 磁头响应的简化表达式”IEEE Trans Magn. 35・5 (1999)。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
H.Muraoka: "Low Inductance and High Efficiency Single-Pole Writing Head for Perpendicular Double Layer Recording Media"IEEE Trans.Magn.. Vol.35No.2. 643-648 (1999)
H.Muraoka:“用于垂直双层记录介质的低电感和高效率单极写入头”IEEE Trans.Magn.. Vol.35No.2。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
山田洋: "垂直磁気記録におけるMRヘッド再生特性の高分解能化"日本応用磁気学会誌. Vol.21No.4-2. 309-312 (1997)
Hiroshi Yamada:“垂直磁记录中的高分辨率磁头再现特性”日本应用磁学学会杂志第 21 卷第 309-312 卷(1997 年)。
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    0
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NAKAMURA Yoshihisa其他文献

NAKAMURA Yoshihisa的其他文献

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{{ truncateString('NAKAMURA Yoshihisa', 18)}}的其他基金

Modes of cognition, linguistic typology, and evolution of languate
认知模式、语言类型学和语言进化
  • 批准号:
    26370560
  • 财政年份:
    2014
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Preventing mucous metaplasia in chronic otitis media by inhibition of Math1
通过抑制 Math1 预防慢性中耳炎的粘膜化生
  • 批准号:
    26462562
  • 财政年份:
    2014
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Grammar and the evolution of language: A cognitive linguistic perspective
语法与语言的演变:认知语言学视角
  • 批准号:
    23520579
  • 财政年份:
    2011
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
New therapy for chronic otitis media or sinusitis by controlling mucous cell metaplasia
通过控制粘液细胞化生治疗慢性中耳炎或鼻窦炎的新疗法
  • 批准号:
    23592490
  • 财政年份:
    2011
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Basic research for mechanisms of mucus cell metaplasia in otitis media and sinusitis.
中耳炎、鼻窦炎粘液细胞化生机制的基础研究。
  • 批准号:
    20791212
  • 财政年份:
    2008
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Spin-cluster recording media for high-density magnetic recording.
用于高密度磁记录的自旋簇记录介质。
  • 批准号:
    11305027
  • 财政年份:
    1999
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A).
Basic Research on Tera-bits Spinic Data Storage
太比特位Spinic数据存储基础研究
  • 批准号:
    07405052
  • 财政年份:
    1995
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Research on Prototype of Sputtering Apparatus for Spinic Data Storage Media
自旋数据存储介质溅射装置原型研究
  • 批准号:
    07505004
  • 财政年份:
    1995
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Ultra High Density Perpendicular Magnetic Recording
超高密度垂直磁记录
  • 批准号:
    01420030
  • 财政年份:
    1989
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
Large Capacity Image File System Using Perpendicular Magnetic Recording
采用垂直磁记录的大容量图像文件系统
  • 批准号:
    01850078
  • 财政年份:
    1989
  • 资助金额:
    $ 20.67万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B).

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High Capacity Storage System for Computational Biology
计算生物学大容量存储系统
  • 批准号:
    8245539
  • 财政年份:
    2012
  • 资助金额:
    $ 20.67万
  • 项目类别:
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  • 批准号:
    0701946
  • 财政年份:
    2007
  • 资助金额:
    $ 20.67万
  • 项目类别:
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MRI: Acquisition of a High-Speed, High Capacity Storage System to Support Scientific Computing: The Data Capacitor
MRI:获取高速、大容量存储系统以支持科学计算:数据电容器
  • 批准号:
    0521433
  • 财政年份:
    2005
  • 资助金额:
    $ 20.67万
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