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1. 发明申请

US20060114587A1 Method for precompensation/write-current latching to improve error rate 有权
标题翻译：预补偿/写电流锁存方法，以提高错误率
公开(公告)号：US20060114587A1
公开(公告)日：2006-06-01
申请号：US11000105
申请日：2004-11-30
申请人： Indukumar Kalahasthi , Quan-chiu Lam , Guo Mian , Kris Schouterden , Joseph Silva , Christopher Wiederholt , Douglas Zuercher
发明人： Indukumar Kalahasthi , Quan-chiu Lam , Guo Mian , Kris Schouterden , Joseph Silva , Christopher Wiederholt , Douglas Zuercher
IPC分类号： G11B5/09
CPC分类号： G11B5/3136 , G11B20/10194 , G11B2005/0018
摘要： A method is presented for writing data to a surface of a magnetic disk in a disk drive. The method includes determining a number of sector groups into which sectors of the data to be written will be grouped, loading registers with current values, kick-latching values, and precompensation values for each of said sector groups, and applying the current values, kick-latching values, and precompensation values for each of the sector groups to the write head while writing data to the sector groups of the recording media.
摘要翻译：提出了一种将数据写入磁盘驱动器中的磁盘表面的方法。该方法包括确定要写入的数据的扇区将被分组的扇区组的数量，为当前值加载寄存器，每个所述扇区组的启动锁定值和预补偿值，并应用当前值，踢在将数据写入记录介质的扇区组时，将每个扇区组的补码值和预补偿值写入写入头。

2. 发明授权

US07446966B2 Method for precompensation/write-current latching to improve error rate 有权
标题翻译：预补偿/写电流锁存方法，以提高错误率
公开(公告)号：US07446966B2
公开(公告)日：2008-11-04
申请号：US11000105
申请日：2004-11-30
申请人： Indukumar Chenchu Kalahasthi , Quan-chiu Harry Lam , Guo Mian , Kris Schouterden , Joseph Emanuel Silva , Christopher David Wiederholt , Douglas M. Zuercher
发明人： Indukumar Chenchu Kalahasthi , Quan-chiu Harry Lam , Guo Mian , Kris Schouterden , Joseph Emanuel Silva , Christopher David Wiederholt , Douglas M. Zuercher
IPC分类号： G11B27/36 , G11B5/09
CPC分类号： G11B5/3136 , G11B20/10194 , G11B2005/0018
摘要： A method is presented for writing data to a surface of a magnetic disk in a disk drive. The method includes determining a number of sector groups into which sectors of the data to be written will be grouped, loading registers with current values, kick-latching values, and precompensation values for each of said sector groups, and applying the current values, kick-latching values, and precompensation values for each of the sector groups to the write head while writing data to the sector groups of the recording media.
摘要翻译：提出了一种将数据写入磁盘驱动器中的磁盘表面的方法。该方法包括确定要写入的数据的扇区将被分组的扇区组的数量，为当前值加载寄存器，每个所述扇区组的启动锁定值和预补偿值，并应用当前值，踢在将数据写入记录介质的扇区组时，将每个扇区组的补码值和预补偿值写入写入头。

3. 发明授权

US06985322B2 Perpendicular recording and read head assembly with in situ stand alone stabilizer for a magnetic medium underlayer 失效
标题翻译：垂直记录和读头组件，具有用于磁性介质底层的原位独立稳定器
公开(公告)号：US06985322B2
公开(公告)日：2006-01-10
申请号：US10631337
申请日：2003-07-30
申请人： Guo Mian , Gary Sui
发明人： Guo Mian , Gary Sui
IPC分类号： G11B5/02
CPC分类号： G11B5/3143 , G11B5/1278
摘要： A data storage apparatus includes a magnetic medium having a top recording layer of hard magnetic material for perpendicularly storing magnetic data and a bottom underlayer of soft magnetic material, a read head for reading magnetic data from a recorded portion of the recording layer, a stabilizer for magnetically stabilizing a portion of the underlayer directly below the recorded portion simultaneously while the read head is reading magnetic data from the recorded portion and the read head and the stabilizer being separate structures.
摘要翻译：一种数据存储装置，包括具有用于垂直地存储磁数据的硬磁材料的顶部记录层和软磁性材料的底部底层的磁性介质，用于从记录层的记录部分读取磁性数据的读取头，用于当读取头正在从记录部分读取磁数据并且读头和稳定器是分离的结构时，同时将记录部分正下方的底层的一部分磁化稳定。

4. 发明申请

US20050024760A1 Perpendicular recording and read head assembly with in situ stand alone stabilizer for a magnetic medium underlayer 失效
标题翻译：垂直记录和读头组件，具有用于磁性介质底层的原位独立稳定器
公开(公告)号：US20050024760A1
公开(公告)日：2005-02-03
申请号：US10631337
申请日：2003-07-30
申请人： Guo Mian , Gary Sui
发明人： Guo Mian , Gary Sui
IPC分类号： G11B5/03 , G11B5/127 , G11B5/31
CPC分类号： G11B5/3143 , G11B5/1278
摘要： A data storage apparatus includes a magnetic medium having a top recording layer of hard magnetic material for perpendicularly storing magnetic data and a bottom underlayer of soft magnetic material, a read head for reading magnetic data from a recorded portion of the recording layer, a stabilizer for magnetically stabilizing a portion of the underlayer directly below the recorded portion simultaneously while the read head is reading magnetic data from the recorded portion and the read head and the stabilizer being separate structures.
摘要翻译：一种数据存储装置，包括具有用于垂直地存储磁数据的硬磁材料的顶部记录层和软磁性材料的底部底层的磁性介质，用于从记录层的记录部分读取磁性数据的读取头，用于当读取头正在从记录部分读取磁数据并且读头和稳定器是分离的结构时，同时将记录部分正下方的底层的一部分磁化稳定。

5. 发明授权

US5914594A Method for characterizing a read head based on write-induced magnetic read center shifts and read sensitivity changes in the read head 失效
标题翻译：基于写入磁读取中心位移和读取头读取灵敏度变化来表征读取头的方法
公开(公告)号：US5914594A
公开(公告)日：1999-06-22
申请号：US819293
申请日：1997-03-18
申请人： Guo Mian
发明人： Guo Mian
IPC分类号： G01R33/12 , G11B5/00 , G11B5/012 , G11B5/39 , G11B5/455 , G11B5/48 , G11B5/55 , G11B5/596 , G11B33/10 , G04C13/04 , G11B5/09 , G11B27/36
CPC分类号： G01R33/12 , G11B5/455 , G11B5/553 , G11B5/5534 , G11B5/59683 , G11B2005/0008 , G11B2005/0016 , G11B33/10 , G11B5/012 , G11B5/3967 , G11B5/4886
摘要： A method for characterizing a head in a hard drive assembly based on a magnetic read center shift and a read sensitivity change of the head. A disk attached to a hard disk drive assembly having a plurality of tracks each having a track centerline is provided. One of the tracks has a plurality of sectors, one of the sectors having a servo field with an A burst, a B burst and a C burst, where the A burst and the C burst have a common boundary located at a track centerline and where B burst has a center that is positioned along the track centerline. Each sector also has a data field. The read element is aligned with the B servo burst and a write excitation field is applied to the write element. The amplitudes of an A burst and a C burst located in a following sector of the track are then read to provide an A burst amplitude value and a C burst amplitude value. The steps of writing and reading are repeated for a predetermined number of times to obtain a set of A burst amplitude values and a set of C burst amplitude values. A value representing an instability of the read element based on the set of A burst amplitude values and the set of C burst amplitude values is then calculated. The head is characterized based on the value.
摘要翻译：一种用于基于磁读取中心位移和磁头的读灵敏度变化来表征硬盘驱动器组件中的磁头的方法。提供了附接到具有多个轨道的硬盘驱动器组件的盘，每个轨道具有轨道中心线。其中一个轨道具有多个扇区，其中一个扇区具有具有A突发，B突发和C突发的伺服字段，其中A突发和C突发具有位于轨道中心线处的公共边界，并且其中 B爆发具有沿轨道中心线定位的中心。每个扇区也有一个数据字段。读取元件与B伺服突发对齐，写入激励字段被施加到写入元件。然后读取位于轨道的跟随扇区中的A脉冲串和C脉冲串的振幅，以提供A突发幅度值和C突发幅度值。写入和读取的步骤重复预定次数以获得一组A突发幅度值和一组C个突发幅度值。然后计算表示基于A组脉冲幅度值和C个突发振幅值集合的读取元件的不稳定性的值。头部的特点是基于价值。

6. 发明授权

US6025712A Method for characterizing a read head based on write induced magnetic read center shifts and read sensitivity changes in the read head 有权
标题翻译：用于基于写入感应磁读取中心位移和读取头中的读取灵敏度变化来表征读取头的方法
公开(公告)号：US6025712A
公开(公告)日：2000-02-15
申请号：US252720
申请日：1999-02-19
申请人： Guo Mian
发明人： Guo Mian
IPC分类号： G01R33/12 , G11B5/00 , G11B5/012 , G11B5/39 , G11B5/455 , G11B5/48 , G11B5/55 , G11B5/596 , G11B33/10 , G04C13/04 , G11B5/09 , G11B27/36
CPC分类号： G01R33/12 , G11B5/455 , G11B5/553 , G11B5/5534 , G11B5/59683 , G11B2005/0008 , G11B2005/0016 , G11B33/10 , G11B5/012 , G11B5/3967 , G11B5/4886
摘要： The present invention relates to a method for characterizing a head in a hard drive assembly, in which the head has a write element. The method comprises providing a disk attached to a hard disk drive assembly, the disk having a plurality of tracks each having a track centerline. One of the tracks has a plurality of sectors. One of the sectors has a servo field with an A burst, a B burst and a C burst, where the A burst and the C bursts have a common boundary located at a track centerline and where the B burst has a center that is positioned along the track centerline. Each sector also has a data field. The read element is aligned with the B servo burst, and data is written in a data field of a first sector of one of the tracks. An A burst and a C burst located in a following sector of one of the tracks is read to provide an A burst amplitude value and a C burst amplitude value. A characteristic of the read element based on the A burst amplitude value and the C burst amplitude value is then determined.
摘要翻译：本发明涉及一种用于表征硬盘驱动器组件中的磁头的方法，其中磁头具有写入元件。该方法包括提供附接到硬盘驱动器组件的盘，盘具有多个轨道，每个轨道具有轨道中心线。轨道之一具有多个扇区。其中一个扇区具有A脉冲串，B脉冲串和C脉冲串的伺服磁场，其中A脉冲串和C脉冲串具有位于轨道中心线处的公共边界，并且其中B脉冲串具有沿着轨道中心线。每个扇区也有一个数据字段。读取元件与B伺服脉冲串对齐，并且数据被写入一个轨道的第一扇区的数据字段中。读出位于其中一条磁道的跟随扇区中的A脉冲串和C脉冲串以提供A突发幅度值和C突发幅度值。然后确定基于A突发振幅值和C突发振幅值的读取元件的特性。

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