公开(公告)号：US20110020669A1

公开(公告)日：2011-01-27

申请号：US12840374

申请日：2010-07-21

申请人： Junichi SAYAMA ,  Hiroaki Nemoto ,  Hiroshi Ide ,  Hiroyasu Kataoka ,  Nobuyukl Takahashi ,  Takehito Shimatsu ,  Osamu Kitakami ,  Satoshi Okamoto ,  Hajime Aoi

发明人： Junichi SAYAMA ,  Hiroaki Nemoto ,  Hiroshi Ide ,  Hiroyasu Kataoka ,  Nobuyukl Takahashi ,  Takehito Shimatsu ,  Osamu Kitakami ,  Satoshi Okamoto ,  Hajime Aoi

IPC分类号： G11B5/706 ,  G11B5/62 ,  G11B5/73

CPC分类号： G11B5/656 ,  G11B5/65 ,  G11B5/7315 ,  G11B5/7325

摘要： A magnetic recording medium having excellent stability of recorded magnetic signals and capable of recording magnetic signals by a thermally assisted magnetic recording system in which a magnetic recording layer of the magnetic recording medium contains ferromagnetic crystal grains of a Co—Ni—Pt alloy with a Pt content of 44 at % or more and 55 at % or less and with an atom content ratio: Ni/(Co+Ni) of 0.64 or more and 0.8 or less. The magnetic recording medium has extremely excellent stability of recorded magnetic signals since the Co—Ni—Pt alloy constituting the magnetic recording layer has an extremely high anisotropy field at a normal temperature. Further, the magnetic recording medium can perform signal recording based on the thermally assisted magnetic recording system since the Co—Ni—Pt alloy constituting the magnetic recording layer has a Curie point within an appropriate temperature range.

摘要翻译： 一种磁记录介质，其具有良好的记录磁信号的稳定性并且能够通过热辅助磁记录系统记录磁信号，其中磁记录介质的磁记录层包含Co-Ni-Pt合金的铁磁晶粒与Pt 含量为44原子％以上且55原子％以下，原子含量比：Ni /（Co + Ni）为0.64以上且0.8以下。 由于构成磁记录层的Co-Ni-Pt合金在常温下具有极高的各向异性场，所以磁记录介质具有非常优异的记录磁信号的稳定性。 此外，由于构成磁记录层的Co-Ni-Pt合金在适当的温度范围内具有居里点，所以磁记录介质可以基于热辅助磁记录系统执行信号记录。

公开(公告)号：US5402428A

公开(公告)日：1995-03-28

申请号：US630210

申请日：1990-12-19

申请人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Hajime Aoi

发明人： Hitoshi Kakuta ,  Yoshihisa Kamo ,  Hajime Aoi

IPC分类号： G06F3/06 ,  G06F11/10 ,  G06F11/14 ,  G06F11/00 ,  G06F1/00 ,  G06F13/00

CPC分类号： G06F11/1076 ,  G06F11/1466 ,  G06F3/0601 ,  G06F2003/0692 ,  G06F2211/109

摘要： An array disk subsystem including a command selector for separating a signal from a host into a data item and a command, a data dividing unit for subdividing the data item, an ECC generator for producing an ECC for each of the obtained subdata items, a group of data disks for respectively storing thereon the subdata items and the ECCs, a command interpreting unit for interpreting the command, an I/O counter for counting I/O commands in the command, a backup processor for requesting a backup command based on count information of the I/O counter, and a backup unit responsive to the backup command for sequentially reading the subdata items and the ECCs from the data disks to record therein the subdata items and the ECCs.

摘要翻译： 一种阵列磁盘子系统，包括用于将信号从主机分离为数据项和命令的命令选择器，用于细分数据项的数据划分单元，用于为每个所获得的子数据项产生ECC的ECC产生器， 用于分别存储子数据项和ECC的数据磁盘，用于解释命令的命令解释单元，用于对命令中的I / O命令进行计数的I / O计数器，用于根据计数信息请求备份命令的备份处理器 的I / O计数器，以及响应于备份命令的备份单元，用于从数据盘顺序读取子数据项和ECC，以在其中记录子数据项和ECC。

公开(公告)号：US4755891A

公开(公告)日：1988-07-05

申请号：US898212

申请日：1986-08-20

申请人： Yasuhiro Katoh ,  Fumio Kugiya ,  Hajime Aoi

发明人： Yasuhiro Katoh ,  Fumio Kugiya ,  Hajime Aoi

IPC分类号： G11B5/09 ,  G11B5/02 ,  G11B20/10 ,  G11B5/23

CPC分类号： G11B20/10046 ,  G11B20/10009 ,  G11B5/02

摘要： In a waveform processing circuit comprising a delay line for delaying a signal outputted from a ring type magnetic head reproducing a perpendicular magnetization recording, an attenuator for attenuating the signal delivered out of the ring type magnetic head, and a differential amplifier for receiving outputs from the delay line and the attenuator, wherein a waveform of the signal is processed to discriminate a position of magnetization transition based on the waveform of the signal; the delay time .tau. of the delay line is selected to satisfyv.multidot..tau..ltoreq.gwhere, v is a relative speed between the recording medium and the magnetic head and g indicates the gap length of the magnetic head.

摘要翻译： 在波形处理电路中，包括用于延迟从再现垂直磁化记录的环形磁头输出的信号的延迟线，用于衰减从环型磁头输出的信号的衰减器，以及差分放大器，用于接收来自 延迟线和衰减器，其中处理信号的波形以基于信号的波形来识别磁化转变的位置; 选择延迟线的延迟时间τ以满足vx tau，其中v是记录介质和磁头之间的相对速度，g表示磁头的间隙长度。