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1. 发明申请

US20120188862A1 APPARATUS AND METHOD FOR CERTIFYING A MAGNETIC RECORDING DISK 审中-公开
标题翻译：用于认证磁记录盘的装置和方法
公开(公告)号：US20120188862A1
公开(公告)日：2012-07-26
申请号：US13499686
申请日：2009-09-30
申请人： Siang Huei Leong , Ka Wei Ng , Zhimin Yuan , Bo Liu
发明人： Siang Huei Leong , Ka Wei Ng , Zhimin Yuan , Bo Liu
IPC分类号： G11B20/18
CPC分类号： G01R33/1207
摘要： Apparatuses and methods for certifying a magnetic recording disk (102) are disclosed herein, in a described embodiment, the apparatus (100) comprises a certifier head (104) for testing the disk's magnetic properties and a product head (106) for testing the disk's mechanical properties and the apparatus (100) is configured to enable simultaneous access to the disk (102) by the product head (106) and the certifier head (104). A method of upgrading a media certifier is also disclosed.
摘要翻译：在所描述的实施例中，本文公开了用于认证磁记录盘（102）的装置和方法，所述装置（100）包括用于测试磁盘的磁性的验证头（104）和用于测试磁盘的磁头机械性能和装置（100）被配置为使得能够通过产品头（106）和认证者头（104）同时访问盘（102）。还公开了升级媒体验证者的方法。

2. 发明申请

US20100020435A1 RECORDING DEVICE WITH WRITE HEAD SPANNING MULTIPLE ROWS OF BIT CELLS AND MULTI-SENSOR READ HEAD 审中-公开
标题翻译：具有写入头部扫描的记录设备多个单元格单元和多个传感器读取头
公开(公告)号：US20100020435A1
公开(公告)日：2010-01-28
申请号：US12507881
申请日：2009-07-23
申请人： YunJie Chen , Zhimin Yuan , Siang Huei Leong , Ka Wei Ng , Bo Liu
发明人： YunJie Chen , Zhimin Yuan , Siang Huei Leong , Ka Wei Ng , Bo Liu
IPC分类号： G11B5/596
CPC分类号： G11B5/59633 , B82Y10/00 , G11B5/02 , G11B5/3948 , G11B5/397 , G11B5/4886 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/855 , G11B2005/0005
摘要： In a recording device, a bit patterned medium comprises a track of bit cells, each settable to one of two distinct bit states. The track comprises two generally parallel rows of bit cells. The bit cells in one row are offset in a down track direction from the bit cells in the other row. A write head spans the two rows. A controller synchronously applies write signals to the write head to set the trailing bit cell covered by the write head as the track moves relative to the write head, and thereby write data to the track. The trailing bit cell covered by the write head alternates from being in one row to being in another row. Read sensors are positioned to independently read bit cells in respective rows, as the track moves relative to the write head along the down track direction.
摘要翻译：在记录装置中，位图案化介质包括位单元的轨道，每个可以设置为两个不同位状态之一。轨道包括两个大致平行的位单元行。一行中的位单元在向下轨道方向上偏离另一行中的位单元。写头横跨两行。当磁道相对于写入头移动时，控制器将写入信号同时施加到写入头以设置由写入头覆盖的尾部位单元，从而将数据写入轨道。由写入头覆盖的尾部位单元从一行移动到另一行。读取传感器被定位成独立地读取相应行中的位单元，因为轨道沿着向下的轨迹方向相对于写入头移动。

3. 发明申请

US20110211271A1 TRAPPING ELECTRON ASSISTED MAGNETIC RECORDING SYSTEM AND METHOD 审中-公开
标题翻译：跟踪电子辅助磁记录系统和方法
公开(公告)号：US20110211271A1
公开(公告)日：2011-09-01
申请号：US13127308
申请日：2009-11-02
申请人： Ka Wei Ng , Tiejun Zhou , Zhimin Yuan , Siang Huei Leong , Bo Liu
发明人： Ka Wei Ng , Tiejun Zhou , Zhimin Yuan , Siang Huei Leong , Bo Liu
IPC分类号： G11B5/09
CPC分类号： G11B5/65 , G11B5/314 , G11B5/667 , G11B2005/001
摘要： A system and method for trapping electron assisted magnetic recording is disclosed. A magnetic recording system comprises a magnetic storage media, a read/write head, and a power supply for applying a negative DC electrical bias to the magnetic storage media in order to reduce the media switching field during the writing process. Recording is performed by applying an AC magnetic field produced by a write pole and a DC electrical field to assist in the writing. An embodiment of the invention uses a high electrical field to trap free electrons into an unfilled electronic shell of magnetic particles of the magnetic storage media, in particular, (3d) shell of transition elements, (4f) shell of rare earths of lanthanides series, and (5f) shell of actinides series. The trapped electron decreases anisotropy of magnetic particles due to reduced number of Bohr magnetron. As a result, a conventional head is able to write very high anisotropy magnetic storage media.
摘要翻译：公开了一种用于捕获电子辅助磁记录的系统和方法。磁记录系统包括磁存储介质，读/写头和用于将负DC电偏压施加到磁存储介质的电源，以便在写入过程期间减少介质切换场。通过施加由写入极和DC电场产生的AC磁场来进行记录以辅助写入。本发明的一个实施例使用高电场将自由电子捕获到磁存储介质的磁性颗粒的未填充的电子壳中，特别是过渡元素的壳体（4f）镧系稀土的壳，和（5f）锕系列的壳。俘获的电子由于减少数量的Bohr磁控管而降低了磁性颗粒的各向异性。结果，传统的头部能够写入非常高的各向异性磁性存储介质。

4. 发明授权

US07751062B2 Optical flying height measurement and calibration with dual sliders 失效
标题翻译：光学飞行高度测量和双滑块校准
公开(公告)号：US07751062B2
公开(公告)日：2010-07-06
申请号：US12097224
申请日：2006-12-12
申请人： Bo Liu , Zhimin Yuan , Ka Wei Ng
发明人： Bo Liu , Zhimin Yuan , Ka Wei Ng
IPC分类号： G01B9/02
CPC分类号： G01B11/14 , G11B5/455 , G11B5/6011 , G11B21/21
摘要： A method for optical flying height measurement, and a flying height tester. The method the method comprises the steps of aligning a first slider and a second slider adjacent a transparent disk; varying a rotational speed of the disk relative to the first slider whereby a spacing between the first slider and the disk changes; measuring changes in a first reflected light intensity caused by interference of a light signal portion reflected from the first slider and a light signal portion reflected from a surface of the disk, wherein the rotational speed is varied over a range such that one maximum and minimum intensities pair is measured in the reflected light intensity; measuring a second reflected light intensity caused by interference of a light signal portion reflected from the second slider and a light signal portion reflected from a surface of the disk at a fixed rotational speed between the disk and the second slider; and calculate a flying height of the second slider using the measured maximum and minimum intensities pair and the measured second reflected light intensity.
摘要翻译：一种用于光学飞行高度测量的方法，以及飞行高度测试仪。所述方法包括以下步骤：使与第一滑块和第二滑块相邻的透明盘对准; 改变盘相对于第一滑块的旋转速度，从而第一滑块和盘之间的间隔改变; 测量由从第一滑块反射的光信号部分的干涉引起的第一反射光强度和从盘表面反射的光信号部分的变化，其中转速在使得一个最大和最小强度对以反射光强度测量; 测量由所述第二滑块反射的光信号部分的干涉引起的第二反射光强度和从所述光盘的表面以固定的转速在所述光盘与所述第二滑块之间反射的光信号部分; 并使用所测量的最大和最小强度对以及所测量的第二反射光强度来计算第二滑块的飞行高度。

5. 发明申请

US20090323079A1 METHOD AND TESTER FOR OPTICAL FLYING HEIGHT MEASUREMENT 失效
标题翻译：用于光学飞行高度测量的方法和测试仪
公开(公告)号：US20090323079A1
公开(公告)日：2009-12-31
申请号：US12097224
申请日：2006-12-12
申请人： Bo Lui , Zhimin Yuan , Ka Wei Ng
发明人： Bo Lui , Zhimin Yuan , Ka Wei Ng
IPC分类号： G01B11/14 , G01B9/02 , G11B21/21
CPC分类号： G01B11/14 , G11B5/455 , G11B5/6011 , G11B21/21
摘要： A method for optical flying height measurement, and a flying height tester. The method the method comprises the steps of aligning a first slider and a second slider adjacent a transparent disk; varying a rotational speed of the disk relative to the first slider whereby a spacing between the first slider and the disk changes; measuring changes in a first reflected light intensity caused by interference of a light signal portion reflected from the first slider and a light signal portion reflected from a surface of the disk, wherein the rotational speed is varied over a range such that one maximum and minimum intensities pair is measured in the reflected light intensity; measuring a second reflected light intensity caused by interference of a light signal portion reflected from the second slider and a light signal portion reflected from a surface of the disk at a fixed rotational speed between the disk and the second slider; and calculate a flying height of the second slider using the measured maximum and minimum intensities pair and the measured second reflected light intensity.
摘要翻译：一种用于光学飞行高度测量的方法，以及飞行高度测试仪。所述方法包括以下步骤：使与第一滑块和第二滑块相邻的透明盘对准; 改变盘相对于第一滑块的旋转速度，从而第一滑块和盘之间的间隔改变; 测量由从第一滑块反射的光信号部分的干涉引起的第一反射光强度和从盘表面反射的光信号部分的变化，其中转速在使得一个最大和最小强度对以反射光强度测量; 测量由所述第二滑块反射的光信号部分的干涉引起的第二反射光强度和从所述光盘的表面以固定的转速在所述光盘与所述第二滑块之间反射的光信号部分; 并使用所测量的最大和最小强度对以及所测量的第二反射光强度来计算第二滑块的飞行高度。

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