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1. 发明授权

US06498696B1 Unipolar last write which improves magnetic stability 失效
标题翻译：单极最后一次写入，提高磁稳定性
公开(公告)号：US06498696B1
公开(公告)日：2002-12-24
申请号：US09705102
申请日：2000-11-02
申请人： Michael Paul Salo , Albert John Wallash
发明人： Michael Paul Salo , Albert John Wallash
IPC分类号： G11B509
CPC分类号： G11B5/09 , G11B2005/0008 , G11B2005/0016
摘要： A method, devices, and an article of manufacture for reducing magnetic instability in a magnetoresistive read head of a combined read-write head after writing data onto a magnetic storage medium. The last write pulse polarity that results in the least amount of magnetic instability in the read head is determined, and is referred to as the designated polarity. Then, after a set of write pulses is written, it is determined whether the last write pulse has the designated polarity. If the last write pulse does not have the designated polarity, then an additional write pulse with the designated polarity is written. Thus, the last write pulse before a read always has the designated polarity, thereby reducing the magnetic instability of the read head, and consequently improving read head performance.
摘要翻译：一种用于在将数据写入磁存储介质之后减少组合读写头的磁阻读头的磁不稳定性的方法，装置和制品。确定导致读取头中磁性不稳定性最小的最后写入脉冲极性，并将其称为指定极性。然后，在写入一组写入脉冲之后，确定最后写入脉冲是否具有指定的极性。如果最后一个写入脉冲没有指定的极性，则写入具有指定极性的附加写入脉冲。因此，读取前的最后一个写入脉冲总是具有指定的极性，从而降低读取磁头的磁性不稳定性，从而提高读取磁头的性能。

2. 发明授权

US06169639A Unipolar last write for improved magnetic stability 失效
标题翻译：单极最后一次写入，以提高磁稳定性
公开(公告)号：US06169639A
公开(公告)日：2001-01-02
申请号：US09178332
申请日：1998-10-23
申请人： Michael Paul Salo , Albert John Wallash
发明人： Michael Paul Salo , Albert John Wallash
IPC分类号： G11B509
CPC分类号： G11B5/09 , G11B2005/0008 , G11B2005/0016
摘要： A method, devices, and an article of manufacture for reducing magnetic instability in a magnetoresistive read head of a combined read-write head after writing data onto a magnetic storage medium. The last write pulse polarity that results in the least amount of magnetic instability in the read head is determined, and is referred to as the designated polarity. Then, after a set of write pulses is written, it is determined whether the last write pulse has the designated polarity. If the last write pulse does not have the designated polarity, then an additional write pulse with the designated polarity is written. Thus, the last write pulse before a read always has the designated polarity, thereby reducing the magnetic instability of the read head, and consequently improving read head performance.
摘要翻译：一种用于在将数据写入磁存储介质之后减少组合读写头的磁阻读头的磁不稳定性的方法，装置和制品。确定导致读取头中磁性不稳定性最小的最后写入脉冲极性，并将其称为指定极性。然后，在写入一组写入脉冲之后，确定最后写入脉冲是否具有指定的极性。如果最后一个写入脉冲没有指定的极性，则写入具有指定极性的附加写入脉冲。因此，读取前的最后一个写入脉冲总是具有指定的极性，从而降低读取磁头的磁性不稳定性，从而提高读取磁头的性能。

3. 发明授权

US06320715B1 Drive electronics employing unipolar last write for improved magnetic stability 有权
标题翻译：驱动电子采用单极性最后写入，以提高磁稳定性
公开(公告)号：US06320715B1
公开(公告)日：2001-11-20
申请号：US09705103
申请日：2000-11-02
申请人： Michael Paul Salo , Albert John Wallash
发明人： Michael Paul Salo , Albert John Wallash
IPC分类号： G11B502
CPC分类号： G11B5/09 , G11B2005/0008 , G11B2005/0016
摘要： A method, devices, and an article of manufacture for reducing magnetic instability in a magnetoresistive read head of a combined read-write head after writing data onto a magnetic storage medium. The last write pulse polarity that results in the least amount of magnetic instability in the read head is determined, and is referred to as the designated polarity. Then, after a set of write pulses is written, it is determined whether the last write pulse has the designated polarity. If the last write pulse does not have the designated polarity, then an additional write pulse with the designated polarity is written. Thus, the last write pulse before a read always has the designated polarity, thereby reducing the magnetic instability of the read head, and consequently improving read head performance.
摘要翻译：一种用于在将数据写入磁存储介质之后减少组合读写头的磁阻读头的磁不稳定性的方法，装置和制品。确定导致读取头中磁性不稳定性最小的最后写入脉冲极性，并将其称为指定极性。然后，在写入一组写入脉冲之后，确定最后写入脉冲是否具有指定的极性。如果最后一个写入脉冲没有指定的极性，则写入具有指定极性的附加写入脉冲。因此，读取前的最后一个写入脉冲总是具有指定的极性，从而降低读取磁头的磁性不稳定性，从而提高读取磁头的性能。

4. 发明授权

US06456449B1 Disk drive with wide servo burst pattern and wide servo sensing element 失效
标题翻译：具有宽伺服突发模式和宽伺服传感元件的磁盘驱动器
公开(公告)号：US06456449B1
公开(公告)日：2002-09-24
申请号：US08908725
申请日：1997-08-07
申请人： Karl Arnold Belser , Wayne Leung Cheung , Dave Anthony Freitas , Ju-Hi John Hong , Mohamad Towfik Krounbi , Michael Paul Salo , Scott Arthur Thomas
发明人： Karl Arnold Belser , Wayne Leung Cheung , Dave Anthony Freitas , Ju-Hi John Hong , Mohamad Towfik Krounbi , Michael Paul Salo , Scott Arthur Thomas
IPC分类号： G11B558
CPC分类号： G11B5/59655
摘要： A magneto-resistive (M-R) head has a read element with a servo sensing width as wide as a data track width and a data sensing width of less than one data track width. The two read sensing widths are achieved by using a single read element having a center electrical contact from the M-R read element that effectively reduces the sensing width of the read element. In a first embodiment, the servo sensing width comprises a first portion of the read element and the data sensing width comprises a second, smaller portion of the read element. In a second embodiment, the servo sensing width comprises the entire read element width and the data sensing width comprises a portion thereof. In yet another embodiment, abutting read elements are constructed to enable separate optimization of each sensing width. The wide servo sensing width permits use of a wide servo pattern having servo bursts as wide as a data track width. A position error sensing (PES) signal produced with the wide servo read element and wide servo pattern has increased linearity and accuracy.
摘要翻译：磁阻（M-R）磁头具有读取元件，其具有与数据磁道宽度一样宽的伺服感测宽度和小于一个数据磁道宽度的数据感测宽度。两个读取感测宽度通过使用具有来自M-R读取元件的中心电接触的单个读取元件来实现，其有效地减小了读取元件的感测宽度。在第一实施例中，伺服感测宽度包括读取元件的第一部分，并且数据感测宽度包括读取元件的第二较小部分。在第二实施例中，伺服感测宽度包括整个读取元件宽度，并且数据感测宽度包括其一部分。在另一个实施例中，邻接的读取元件被构造成能够分别优化每个感测宽度。宽的伺服感测宽度允许使用具有与数据轨道宽度一样宽的伺服脉冲串的宽伺服模式。用宽伺服读取元件和宽伺服模式产生的位置误差检测（PES）信号具有更高的线性度和精度。

5. 发明申请

US20110128646A1 SYNCHRONIZED REWRITING OF DATA 有权
标题翻译：数据同步化
公开(公告)号：US20110128646A1
公开(公告)日：2011-06-02
申请号：US12629437
申请日：2009-12-02
申请人： Michael Alex , Xiaodong Che , Zhen Jin , Michael Paul Salo
发明人： Michael Alex , Xiaodong Che , Zhen Jin , Michael Paul Salo
IPC分类号： G11B21/02
CPC分类号： G11B19/041 , G11B5/02 , G11B20/10009 , G11B20/10398 , G11B2005/001 , G11B2020/10898 , G11B2220/2516
摘要： A hard disk drive (HDD) including a magnetic disk, the magnetic disk including a data track. The HDD also includes a synchronized rewrite controller for synchronizing a plurality of rewrites of a data pattern on a location of the track of the magnetic disk and the HDD includes a write head controlled by the synchronized rewrite controller for writing the data pattern on the location of the data track and rewriting the data pattern a plurality of times on the location in synchronization with a prior writing of the data pattern on the data track.
摘要翻译：包括磁盘的硬盘驱动器（HDD），磁盘包括数据磁道。 HDD还包括同步重写控制器，用于在磁盘的轨道的位置上同步数据模式的多个重写，并且HDD包括由同步重写控制器控制的写入头，用于将数据模式写入到数据跟踪数据跟踪并重写数据模式多次在位置上与数据轨迹上的数据模式的先前写入同步。

6. 发明授权

US08094403B2 Correcting errors in position of an HDD write-head 有权
标题翻译：纠正HDD写入头位置的错误
公开(公告)号：US08094403B2
公开(公告)日：2012-01-10
申请号：US12435220
申请日：2009-05-04
申请人： Roger William Wood , James Terrence Olson , Zhen Jin , Michael Paul Salo
发明人： Roger William Wood , James Terrence Olson , Zhen Jin , Michael Paul Salo
IPC分类号： G11B21/02
CPC分类号： G11B5/012 , G11B5/5552 , G11B5/6005 , G11B5/6064 , G11B2005/001 , G11B2005/0021
摘要： A hard-disk drive (HDD) with a current adjustment component is provided. The current adjustment component changes an amount of current to a magnetic-recording head of the HDD to cause a change in the strength of a magnetic write field produced by the magnetic-recording head in response to a determination that a present position of the magnetic-head head is not in a desired position. To illustrate, in response to a determination that the present position of the magnetic-recording head is further away from an edge of a current track being written than a desired position of the magnetic-recording head, the current adjustment component increases the current to the magnetic-recording head to cause an increase in the strength of the magnetic write field. The change in the strength of the magnetic write field causes data, written by the magnetic-recording head, to be located at a desired location on the magnetic-recording disk.
摘要翻译：提供带有电流调节组件的硬盘驱动器（HDD）。电流调节部件将电流量改变到HDD的磁记录头，以响应于确定磁记录头的当前位置而导致磁记录头产生的磁写入场强度的变化，头部头部不在期望的位置。为了说明，响应于确定磁记录头的当前位置比正在写入的当前轨道的边缘比磁记录头的期望位置更远，则电流调节组件将电流增加到磁记录头导致磁写字段的强度增加。磁性写入场强度的变化导致由磁记录头写入的数据位于磁记录盘上的所需位置。

7. 发明申请

US20100277827A1 Correcting Errors in Position of an HDD Write-Head 有权
标题翻译：纠正HDD写入头位置的错误
公开(公告)号：US20100277827A1
公开(公告)日：2010-11-04
申请号：US12435220
申请日：2009-05-04
申请人： Roger William Wood , James Terrence Olson , Zhen Jin , Michael Paul Salo
发明人： Roger William Wood , James Terrence Olson , Zhen Jin , Michael Paul Salo
IPC分类号： G11B21/02
CPC分类号： G11B5/012 , G11B5/5552 , G11B5/6005 , G11B5/6064 , G11B2005/001 , G11B2005/0021
摘要： A hard-disk drive (HDD) with a current adjustment component is provided. The current adjustment component changes an amount of current to a magnetic-recording head of the HDD to cause a change in the strength of a magnetic write field produced by the magnetic-recording head in response to a determination that a present position of the magnetic-head head is not in a desired position. To illustrate, in response to a determination that the present position of the magnetic-recording head is further away from an edge of a current track being written than a desired position of the magnetic-recording head, the current adjustment component increases the current to the magnetic-recording head to cause an increase in the strength of the magnetic write field. The change in the strength of the magnetic write field causes data, written by the magnetic-recording head, to be located at a desired location on the magnetic-recording disk.
摘要翻译：提供带有电流调节组件的硬盘驱动器（HDD）。电流调节部件将电流量改变到HDD的磁记录头，以响应于确定磁记录头的当前位置而导致磁记录头产生的磁写入场强度的变化，头部头部不在期望的位置。为了说明，响应于确定磁记录头的当前位置比正在写入的当前轨道的边缘比磁记录头的期望位置更远，则电流调节组件将电流增加到磁记录头导致磁写字段的强度增加。磁性写入场强度的变化导致由磁记录头写入的数据位于磁记录盘上的所需位置。

8. 发明授权

US07573677B2 Reduction of interference pickup in heads for magnetic recording by minimizing parasitic capacitance 有权
标题翻译：通过最小化寄生电容来减少用于磁记录的磁头中的干扰拾取
公开(公告)号：US07573677B2
公开(公告)日：2009-08-11
申请号：US10087332
申请日：2002-03-01
申请人： Vladimir Nikitin , Michael Paul Salo , Samuel W. Yuan , Robert Langland Smith , Mark Allen Burleson
发明人： Vladimir Nikitin , Michael Paul Salo , Samuel W. Yuan , Robert Langland Smith , Mark Allen Burleson
IPC分类号： G11B5/60
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/11 , G11B5/112 , G11B5/3103 , G11B5/3903 , G11B2005/0016 , G11B2005/3996
摘要： Disclosed is a system and a method for reducing high frequency interference pickup by the read element of the magneto-recording head. The reduction is achieved by reducing the parisitic capacitance between certain elements of the magnetic head. In one embodiment, the areas of the pads and leads, including the areas of the leads over the S1 and the areas of the sensor leads, are reduced. A second implementation involves increasing the separation between the pads and leads and the substrate material. Copper studs or vias may be used to connect the contact pads and the underlying layers. A third implementation includes using a low dielectric constant material as a spacer layer between conductors (leads, pads, magnetic shields) and the substrate.
摘要翻译：公开了一种用于降低磁记录头的读取元件的高频干扰拾取的系统和方法。减少是通过减少磁头的某些元件之间的公共电容来实现的。在一个实施例中，减小了焊盘和引线的区域，包括S1上的引线区域和传感器引线的区域。第二实施方案涉及增加焊盘和引线与基板材料之间的分离。铜螺柱或通孔可用于连接接触垫和下层。第三实施方案包括使用低介电常数材料作为导体（导线，焊盘，磁屏蔽）和衬底之间的间隔层。

9. 发明授权

US08116021B2 Synchronized rewriting of data 有权
标题翻译：同步重写数据
公开(公告)号：US08116021B2
公开(公告)日：2012-02-14
申请号：US12629437
申请日：2009-12-02
申请人： Michael Alex , Xiaodong Che , Zhen Jin , Michael Paul Salo
发明人： Michael Alex , Xiaodong Che , Zhen Jin , Michael Paul Salo
IPC分类号： G11B27/36
CPC分类号： G11B19/041 , G11B5/02 , G11B20/10009 , G11B20/10398 , G11B2005/001 , G11B2020/10898 , G11B2220/2516
摘要： A hard disk drive (HDD) including a magnetic disk, the magnetic disk including a data track. The HDD also includes a synchronized rewrite controller for synchronizing a plurality of rewrites of a data pattern on a location of the track of the magnetic disk and the HDD includes a write head controlled by the synchronized rewrite controller for writing the data pattern on the location of the data track and rewriting the data pattern a plurality of times on the location in synchronization with a prior writing of the data pattern on the data track.
摘要翻译：包括磁盘的硬盘驱动器（HDD），磁盘包括数据磁道。 HDD还包括同步重写控制器，用于在磁盘的轨道的位置上同步数据模式的多个重写，并且HDD包括由同步重写控制器控制的写入头，用于将数据模式写入到数据跟踪数据跟踪并重写数据模式多次在位置上与数据轨迹上的数据模式的先前写入同步。

10. 发明授权

US06859347B2 Magnetic transducer with electrically conductive shield for reducing electromagnetic interference 失效
标题翻译：具有导电屏蔽的磁性换能器，用于减少电磁干扰
公开(公告)号：US06859347B2
公开(公告)日：2005-02-22
申请号：US09756377
申请日：2001-01-04
申请人： Richard Hsiao , Klaas Berend Klaassen , Edward Hing Pong Lee , Timothy J. Moran , Vladimir Nikitin , Michael Paul Salo , Samuel Wei-San Yuan
发明人： Richard Hsiao , Klaas Berend Klaassen , Edward Hing Pong Lee , Timothy J. Moran , Vladimir Nikitin , Michael Paul Salo , Samuel Wei-San Yuan
IPC分类号： G11B5/11 , G11B5/31 , G11B5/33 , G11B5/39 , G11B5/48
CPC分类号： G11B5/4853 , G11B5/11 , G11B5/3143 , G11B5/33 , G11B5/3903 , G11B5/486 , Y10T29/49032
摘要： A magnetic transducer including an electrically conductive shield (ECS) which is disposed between the substrate and first magnetic shield is described. The ECS is preferably embedded in an insulating undercoat layer. The ECS is preferably electrically isolated from the magnetic sensor element and is externally connected to a ground available in the disk drive through the arm electronics. Two alternative ways for connecting the ECS to a ground are described. In one embodiment which is only effective with single-ended input type arm electronics, the ECS is connected to a ground through a via to a lead pad for the read head which is connected to the ground of the arm electronics. In a second and more preferred embodiment a separate lead pad is included on the head to allow the ECS to be connected to electronic or case ground when the head is installed in the arm. The extent of the ECS should be sufficiently large to cover the read head portion of the transducer, i.e., from the edge of the first magnetic shield to the outer edges of the read contact pads, but should preferably not cover the write head pads.
摘要翻译：描述了包括设置在基板和第一磁屏蔽之间的导电屏蔽（ECS）的磁换能器。 ECS优选地嵌入绝缘底涂层中。 ECS优选地与磁传感器元件电隔离，并且通过臂电子器件外部连接到盘驱动器中可用的地面。描述了将ECS连接到地面的两种替代方式。在一个实施例中，其仅对单端输入型臂电子器件有效，ECS通过通孔连接到地面，用于连接到臂电子器件的地面的用于读头的引线板。在第二和更优选的实施例中，头部包括单独的引线板，以便当头部安装在臂中时，允许ECS连接到电子或壳体接地。 ECS的范围应该足够大以覆盖换能器的读头部分，即从第一磁屏蔽的边缘到读接触焊盘的外边缘，但是最好不覆盖写头焊盘。

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