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1. 发明申请

US20100246062A1 PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK WITH SERVO REGIONS HAVING MAGNETIZED SERVO PILLARS AND OPPOSITELY-MAGNETIZED SERVO TRENCHES 有权
标题翻译：带有伺服区域的磁性记录磁盘记录磁盘，具有磁化的伺服柱和相对磁化的伺服轨道
公开(公告)号：US20100246062A1
公开(公告)日：2010-09-30
申请号：US12412548
申请日：2009-03-27
申请人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
发明人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
IPC分类号： G11B5/74 , C23C14/34
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译：图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。数据沟槽中的材料是非磁性的或不连续的。在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化。

2. 发明授权

US08252153B2 Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches 有权
标题翻译：具有磁化伺服柱和相对磁化的伺服沟槽的伺服区域的图案化介质垂直磁记录盘
公开(公告)号：US08252153B2
公开(公告)日：2012-08-28
申请号：US13103143
申请日：2011-05-09
申请人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
发明人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
IPC分类号： C23C14/00 , C23C14/32
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译：图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。数据沟槽中的材料是非磁性的或不连续的。在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化。

3. 发明申请

US20110212347A1 PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK WITH SERVO REGIONS HAVING MAGNETIZED SERVO PILLARS AND OPPOSITELY-MAGNETIZED SERVO TRENCHES 有权
标题翻译：带有伺服区域的磁性记录磁盘记录磁盘，具有磁化的伺服柱和相对磁化的伺服轨道
公开(公告)号：US20110212347A1
公开(公告)日：2011-09-01
申请号：US13103143
申请日：2011-05-09
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
IPC分类号： G11B5/65 , C23C14/34
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译：图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。数据沟槽中的材料是非磁性的或不连续的。在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化。

4. 发明授权

US07960044B2 Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches 有权
标题翻译：具有磁化伺服柱和相对磁化的伺服沟槽的伺服区域的图案化介质垂直磁记录盘
公开(公告)号：US07960044B2
公开(公告)日：2011-06-14
申请号：US12412548
申请日：2009-03-27
申请人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
发明人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
IPC分类号： G11B5/66
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译：图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。数据沟槽中的材料是非磁性的或不连续的。在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化。

5. 发明授权

US07948701B2 Servo patterns for self-assembled island arrays 有权
标题翻译：自组装岛阵列的伺服模式
公开(公告)号：US07948701B2
公开(公告)日：2011-05-24
申请号：US12627621
申请日：2009-11-30
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic , Xiao Z. Wu
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic , Xiao Z. Wu
IPC分类号： G11B5/09 , G11B21/02 , G11B5/596
CPC分类号： G11B5/5965
摘要： Servo patterns and associated methods of fabricating servo patterns are described. For patterned storage media, data sectors and servo sectors may be patterned using self-assembly. In one embodiment, self-assembly is used to form a first array of islands and a second array of islands in servo sectors that are track-wise offset. A servo writing process is then performed to write a desired servo pattern in the arrays, such as for burst fields, synchronization fields, etc.
摘要翻译：描述了制造伺服模式的伺服模式和相关方法。对于图案化存储介质，可以使用自组装图案化数据扇区和伺服扇区。在一个实施例中，自组装被用于形成第一阵列阵列和在跟踪方向偏移的伺服扇区中的岛的第二阵列。然后执行伺服写入处理以在阵列中写入期望的伺服模式，例如用于突发字段，同步字段等。

6. 发明授权

US06791774B1 Contact magnetic transfer of servo pattern to rigid perpendicular magnetic recording disk 有权
标题翻译：将伺服模式的磁传递接触到刚性垂直磁记录盘
公开(公告)号：US06791774B1
公开(公告)日：2004-09-14
申请号：US10436932
申请日：2003-05-12
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic
IPC分类号： G11B586
CPC分类号： B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/86 , G11B5/865 , G11B2005/0029
摘要： A contact magnetic transfer method forms a pattern of magnetized servo regions in the magnetic recording layer of a rigid perpendicular magnetic recording disk. A master disk or template has a rigid or flexible base with a first film of soft magnetic material on the base and a pattern of islands of soft magnetic material on and extending above the first film and recesses between the islands. The slave disk to be servo patterned is either DC magnetized in a first direction perpendicular to the plane of the recording layer or AC-erased. The slave disk is then placed with its outer layer in proximity to the islands of the master template and a magnetic field is applied in a perpendicular direction to magnetize the regions beneath the islands in the same direction as the applied field. In the regions of the recording layer beneath the recesses of the template the magnetization is reversed from that in the regions beneath the islands.
摘要翻译：接触磁转移方法在刚性垂直磁记录盘的磁记录层中形成磁化伺服区的图案。母盘或模板具有刚性或柔性基部，在基部上具有软磁材料的第一膜，并且在第一膜上方并且在第一膜之上延伸并且在岛之间的凹陷处形成软磁材料岛的图案。要伺服图案化的从盘在垂直于记录层的平面的第一方向上被直流磁化或被AC擦除。然后将从盘与其外层放置在主模板的岛附近，并且沿垂直方向施加磁场，以沿与所施加的场相同的方向磁化岛下的区域。在模板凹陷下方的记录层的区域中，磁化与岛下方的区域相反。

7. 发明授权

US07652839B2 Magnetic recording disk with identical servo patterns formed on each disk surface by single master template and disk drive using the disk 有权
标题翻译：具有相同伺服模式的磁记录盘，通过单个主模板和磁盘驱动器使用磁盘在每个磁盘表面上形成
公开(公告)号：US07652839B2
公开(公告)日：2010-01-26
申请号：US11740289
申请日：2007-04-26
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic
IPC分类号： G11B21/02
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/59655 , G11B5/59688 , G11B5/743 , G11B5/82
摘要： A magnetic recording disk in a disk drive has identical pre-patterned servo patterns on its front and back surfaces. The servo patterns on each disk surface are pre-patterned with a single master template, resulting in the identical pattern on each disk surface. The servo sectors on the two disk surfaces can form identical patterns of angularly spaced arcuate-shaped lines or straight lines that extend radially across the data tracks. However, because the lines on at least one of the disk surfaces do not replicate the path of the recording head, the sampling rate of the servo sectors on that surface is not constant but varies with radial position of the head. To accommodate this, the disk drive's servo control system calculates a timing adjustment from an estimate of the radial position of the head and uses this timing adjustment to adjust the time to open a time window to allow detection of the servo sectors.
摘要翻译：磁盘驱动器中的磁记录盘在其前表面和后表面上具有相同的预图案化伺服图案。每个磁盘表面上的伺服图案都用单个主模板预先图案化，从而在每个磁盘表面上形成相同的图案。两个磁盘表面上的伺服扇区可以形成相同的角度间隔的弓形线或沿着数据轨道径向延伸的直线。然而，由于至少一个盘表面上的线不复制记录头的路径，所以在该表面上的伺服扇区的采样率不是恒定的，而是随着磁头的径向位置而变化。为了适应这一点，磁盘驱动器的伺服控制系统根据头部的径向位置的估计来计算定时调整，并且使用该定时调整来调整打开时间窗口的时间以允许检测伺服扇区。

8. 发明申请

US20090168229A1 SERVO PATTERNS FOR SELF-ASSEMBLED ISLAND ARRAYS 失效
标题翻译：自组装岛屿阵列的伺服模式
公开(公告)号：US20090168229A1
公开(公告)日：2009-07-02
申请号：US11964661
申请日：2007-12-26
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic , Xiao Z. Wu
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic , Xiao Z. Wu
IPC分类号： G11B5/596
CPC分类号： G11B5/5965
摘要： Servo patterns and associated methods of fabricating servo patterns are described. For patterned storage media, data sectors and servo sectors may be patterned using self-assembly. In one embodiment, self-assembly is used to form a first array of islands and a second array of islands in servo sectors that are track-wise offset. A servo writing process is then performed to write a desired servo pattern in the arrays, such as for burst fields, synchronization fields, etc.
摘要翻译：描述了制造伺服模式的伺服模式和相关方法。对于图案化存储介质，可以使用自组装图案化数据扇区和伺服扇区。在一个实施例中，自组装被用于形成第一阵列阵列和在跟踪方向偏移的伺服扇区中的岛的第二阵列。然后执行伺服写入处理以在阵列中写入期望的伺服模式，例如用于突发字段，同步字段等。

9. 发明授权

US07911728B2 Method for servowriting a patterned-media perpendicular magnetic recording disk using position error signal (PES) alignment fields 有权
标题翻译：使用位置误差信号（PES）对准场伺服驱动图案化介质垂直磁记录盘的方法
公开(公告)号：US07911728B2
公开(公告)日：2011-03-22
申请号：US12324431
申请日：2008-11-26
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic
IPC分类号： G11B21/02 , G11B5/09
CPC分类号： G11B5/5965 , G11B2020/1281 , G11B2220/2516
摘要： A servowriting method for a patterned-media magnetic recording disk uses a special position error signal (PES) alignment pattern located in each servo sector. A gross feedforward correction signal to compensate for gross eccentricity of the disk relative to the center of rotation of the servowriter spindle is applied to the actuator. With the gross feedforward correction applied to the actuator the read head generally follows a data track centerline and will detect signals from PES alignment fields as each servo sector passes the read head. This results in a readback signal at each servo sector that represents the fractional track-width radial offset of the read head in that servo sector from a data track centerline. The set of radial offsets for all of the servo sectors is used to modify or fine tune the gross feedforward correction signal that is applied during the servowrite process. This enables the servowriter write head to then precisely follow a track centerline so that the discrete islands in the PES fields can be magnetized according to the desired pattern.
摘要翻译：用于图案化介质磁记录盘的伺服驱动方法使用位于每个伺服扇区中的特殊位置误差信号（PES）对准图案。用于补偿盘相对于伺服驱动器主轴的旋转中心的总偏心率的总前馈校正信号被施加到致动器。通过对致动器进行总前馈校正，读取头通常遵循数据轨道中心线，并且将在每个伺服扇区通过读取头时检测来自PES对准场的信号。这导致在每个伺服扇区处的回读信号，其表示来自数据轨道中心线的该伺服扇区中的读头的分数轨迹宽度径向偏移。用于所有伺服扇区的一组径向偏移用于修改或微调在伺服写入过程中应用的总前馈校正信号。这使得伺服驱动器写头然后精确地跟随轨道中心线，使得PES场中的离散岛可以根据期望的图案被磁化。

10. 发明申请

US20100128583A1 METHOD FOR SERVOWRITING A PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK USING POSITION ERROR SIGNAL (PES) ALIGNMENT FIELDS 有权
标题翻译：使用位置错误信号（PES）对齐字段对图形媒体磁带记录磁盘进行服务的方法
公开(公告)号：US20100128583A1
公开(公告)日：2010-05-27
申请号：US12324431
申请日：2008-11-26
申请人： Thomas R. Albrecht , Zvonimir Z. Bandic
发明人： Thomas R. Albrecht , Zvonimir Z. Bandic
IPC分类号： G11B20/10
CPC分类号： G11B5/5965 , G11B2020/1281 , G11B2220/2516
摘要： A servowriting method for a patterned-media magnetic recording disk uses a special position error signal (PES) alignment pattern located in each servo sector. A gross feedforward correction signal to compensate for gross eccentricity of the disk relative to the center of rotation of the servowriter spindle is applied to the actuator. With the gross feedforward correction applied to the actuator the read head generally follows a data track centerline and will detect signals from PES alignment fields as each servo sector passes the read head. This results in a readback signal at each servo sector that represents the fractional track-width radial offset of the read head in that servo sector from a data track centerline. The set of radial offsets for all of the servo sectors is used to modify or fine tune the gross feedforward correction signal that is applied during the servowrite process. This enables the servowriter write head to then precisely follow a track centerline so that the discrete islands in the PES fields can be magnetized according to the desired pattern.
摘要翻译：用于图案化介质磁记录盘的伺服驱动方法使用位于每个伺服扇区中的特殊位置误差信号（PES）对准图案。用于补偿盘相对于伺服驱动器主轴的旋转中心的总偏心率的总前馈校正信号被施加到致动器。通过对致动器进行总前馈校正，读取头通常遵循数据轨道中心线，并且将在每个伺服扇区通过读取头时检测来自PES对准场的信号。这导致在每个伺服扇区处的回读信号，其表示来自数据轨道中心线的该伺服扇区中的读头的分数轨迹宽度径向偏移。用于所有伺服扇区的一组径向偏移用于修改或微调在伺服写入过程中应用的总前馈校正信号。这使得伺服驱动器写头然后精确地跟随轨道中心线，使得PES场中的离散岛可以根据期望的图案被磁化。

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