公开(公告)号：US06965489B1

公开(公告)日：2005-11-15

申请号：US10769387

申请日：2004-01-31

申请人： Tehri S. Lee ,  Robert L. Cloke ,  Siri S. Weerasooriya

发明人： Tehri S. Lee ,  Robert L. Cloke ,  Siri S. Weerasooriya

IPC分类号： G11B5/09 ,  G11B5/596 ,  G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59661

摘要： A method of writing product servo sectors to a disk of a disk drive is disclosed. An external spiral servo writer writes a plurality of reference servo sectors at an outer diameter of the disk and a plurality of spiral tracks that spiral from an outer diameter to an inner diameter of the disk. At the beginning of the product servo writing process, the reference servo sectors are demodulated to initially synchronize a servo write clock. The spiral tracks are then demodulated to maintain synchronization of the servo write clock as well as maintain the head along a target circumferential path while writing product servo sectors to the disk.

摘要翻译： 公开了一种将产品伺服扇区写入磁盘驱动器的盘的方法。 外部螺旋伺服写入器在盘的外径处写入多个参考伺服扇区，以及从盘的外径螺旋形到内径的多个螺旋轨道。 在产品伺服写入过程开始时，参考伺服扇区被解调为最初同步伺服写入时钟。 然后解调螺旋轨道以保持伺服写入时钟的同步，并且在将产品伺服扇区写入盘时沿着目标圆周路径保持头部。

公开(公告)号：US07440210B1

公开(公告)日：2008-10-21

申请号：US10875591

申请日：2004-06-23

申请人： Tehri S. Lee

发明人： Tehri S. Lee

IPC分类号： G11B5/09 ,  G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59616 ,  G11B5/59655 ,  G11B5/59661

摘要： A method of writing spiral tracks on a disk of a disk drive is disclosed. The disk drive comprises control circuitry and a head disk assembly (HDA) comprising the disk, an actuator arm, a head coupled to a distal end of the actuator arm, and a voice coil motor for rotating the actuator arm about a pivot to position the head radially over the disk. A write clock is synchronized to the rotation of the disk, and a plurality of spiral tracks are written on the disk at a predetermined circular location determined from the write clock. Each spiral track comprises a high frequency signal interrupted at a predetermined interval by a multi-bit sync mark, and each multi-bit sync mark comprises a plurality of bits.

摘要翻译： 公开了一种在盘驱动器的盘上写入螺旋形轨道的方法。 磁盘驱动器包括控制电路和头磁盘组件（HDA），磁头盘组件（HDA）包括磁盘，致动器臂，耦合到致动器臂的远端的磁头和音圈电动机，用于围绕枢轴转动致动器臂， 磁头径向靠近磁盘。 写时钟与盘的旋转同步，并且多个螺旋轨迹以从写入时钟确定的预定的圆形位置写入盘上。 每个螺旋轨道包括通过多位同步标记以预定间隔中断的高频信号，并且每个多位同步标记包括多个位。

公开(公告)号：US07433143B1

公开(公告)日：2008-10-07

申请号：US10943287

申请日：2004-09-17

申请人： Wing Ying ,  Jack M. Chue ,  Siri S. Weerasooriya ,  Tehri S. Lee

发明人： Wing Ying ,  Jack M. Chue ,  Siri S. Weerasooriya ,  Tehri S. Lee

IPC分类号： G11B5/09

CPC分类号： G11B5/012 ,  G11B5/5534 ,  G11B5/59633 ,  G11B5/59661

摘要： A method and apparatus is disclosed for adjusting the track density by changing the slope of spiral tracks used to servo write a disk drive. A target track density is established for a disk surface, and a plurality of spiral tracks are written to the disk surface in response to the target track density. Each spiral track comprises a high frequency signal interrupted at a predetermined interval by a sync mark, and a slope of the spiral tracks is selected in response to the target track density. The head internal to the disk drive is used to read the spiral tracks in order to write product servo sectors to the disk to define a plurality of data tracks, wherein the slope of the spiral tracks determines the density of the data tracks.

摘要翻译： 公开了一种用于通过改变用于伺服写入磁盘驱动器的螺旋磁道的斜率来调整磁道密度的方法和装置。 针对磁盘表面建立目标磁道密度，并且响应于目标磁道密度将多个螺旋磁道写入磁盘表面。 每个螺旋轨道包括通过同步标记以预定间隔中断的高频信号，并且响应于目标轨道密度选择螺旋轨道的斜率。 磁盘驱动器内部的磁头用于读取螺旋磁道，以便将产品伺服扇区写入磁盘以定义多个数据磁道，其中螺旋磁道的斜率决定数据磁道的密度。

公开(公告)号：US07212364B1

公开(公告)日：2007-05-01

申请号：US10769386

申请日：2004-01-31

申请人： Tehri S. Lee

发明人： Tehri S. Lee

IPC分类号： G11B5/02

CPC分类号： G11B5/59655 ,  G11B5/59661 ,  G11B27/3027

摘要： A method of writing product servo sectors to a disk of a disk drive is disclosed. A plurality of spiral tracks are written to the disk, wherein each spiral track comprises a high frequency signal interrupted at a predetermined interval by a sync mark. During the product servo writing process, the sync marks in the spiral tracks are detected and a sync mark reliability metric is generated, wherein the sync mark reliability metric represents a probability that the sync mark was detected accurately. A timing recovery measurement is generated in response to the detected sync marks and the sync mark reliability metrics. A servo write clock is synchronized in response to the timing recovery measurement and used to write the product servo sectors to the disk while serving on the spiral tracks.

摘要翻译： 公开了一种将产品伺服扇区写入磁盘驱动器的盘的方法。 多个螺旋轨迹被写入到盘中，其中每个螺旋轨道包括以预定间隔被同步标记中断的高频信号。 在产品伺服写入处理期间，检测螺旋轨道中的同步标记，并产生同步标记可靠性度量，其中同步标记可靠性度量表示准确检测到同步标记的概率。 响应于检测到的同步标记和同步标记可靠性度量而产生定时恢复测量。 伺服写入时钟响应于定时恢复测量而同步，并用于在螺旋磁道上服务时将产品伺服扇区写入磁盘。

公开(公告)号：US07113362B1

公开(公告)日：2006-09-26

申请号：US11208358

申请日：2005-08-19

申请人： Tehri S. Lee ,  Siri S. Weerasooriya

发明人： Tehri S. Lee ,  Siri S. Weerasooriya

IPC分类号： G11B5/596

CPC分类号： G11B5/59633 ,  G11B5/59661

摘要： A disk drive is disclosed having a disk comprising a plurality of spiral tracks, a head actuated over the disk, and control circuitry operable to process the spiral tracks in an interleaved manner to write a plurality of product servo sectors to the disk to define a plurality of radially spaced, concentric data tracks.

摘要翻译： 公开了一种磁盘驱动器，其具有包括多个螺旋轨道的磁盘，在盘上致动的磁头，以及控制电路，可操作用于以交错方式处理螺旋磁道，以将多个产品伺服扇区写入磁盘以限定多个 的径向间隔的同心数据轨道。

公开(公告)号：US06989954B1

公开(公告)日：2006-01-24

申请号：US10769480

申请日：2004-01-31

申请人： Tehri S. Lee ,  Robert L. Cloke ,  Siri S. Weerasooriya

发明人： Tehri S. Lee ,  Robert L. Cloke ,  Siri S. Weerasooriya

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59688

摘要： A method of manufacturing a disk drive by demodulating product servo sectors and spiral tracks written on a disk of the disk drive is disclosed. An external spiral servo writer writes a plurality of spiral tracks that spiral from an outer diameter to an inner diameter of the disk. Each spiral track comprises a high frequency signal interrupted at a predetermined interval by a sync mark. The spiral tracks are used to write product servo sectors to the disk during a fill operation. Common circuitry, such as burst demodulation circuitry, is used to demodulate the high frequency signal in the spiral tracks during the fill operation as well as demodulate the product servo sectors.

摘要翻译： 公开了一种通过解调写入磁盘驱动器的磁盘上的产品伺服扇区和螺旋磁道来制造磁盘驱动器的方法。 外部螺旋伺服写入器写入从盘的内径螺旋形的多个螺旋形轨道。 每个螺旋轨道包括通过同步标记以预定间隔中断的高频信号。 螺旋轨道用于在填充操作期间将产品伺服扇区写入磁盘。 诸如脉冲串解调电路之类的公共电路用于在填充操作期间对螺旋磁道中的高频信号进行解调以及解调产品伺服扇区。

公开(公告)号：US06987636B1

公开(公告)日：2006-01-17

申请号：US10943629

申请日：2004-09-17

申请人： Jack M. Chue ,  Siri S. Weerasooriya ,  Tehri S. Lee

发明人： Jack M. Chue ,  Siri S. Weerasooriya ,  Tehri S. Lee

IPC分类号： G11B21/02 ,  G11B5/09 ,  G11B5/596

CPC分类号： G11B5/59633

摘要： A method and apparatus is disclosed for adjusting the track density over the disk radius by changing the slope of spiral tracks used to servo write a disk drive. A plurality of spiral tracks are written to the disk wherein each spiral track comprises a high frequency signal interrupted at a predetermined interval by a sync mark. A slope of the spiral tracks over a first radial segment of the disk is substantially steeper than the slope of the spiral tracks over a second radial segment of the disk. The head internal to the disk drive is used to read the spiral tracks in order to write product servo sectors to the disk to define a plurality of data tracks. The steeper slope of the spiral tracks over the first radial segment causes a track density of the data tracks to be lower over the first radial segment compared to the track density of the data tracks over the second radial segment.

摘要翻译： 公开了一种用于通过改变用于伺服写入磁盘驱动器的螺旋磁道的斜率来调整磁盘半径上的磁道密度的方法和装置。 多个螺旋轨道被写入盘，其中每个螺旋轨道包括以预定间隔被同步标记中断的高频信号。 在盘的第一径向段上的螺旋形轨道的斜面基本上比盘的第二径向段上的螺旋形轨道的斜率更陡。 磁盘驱动器内部的磁头用于读取螺旋磁道，以便将产品伺服扇区写入磁盘以定义多个数据磁道。 与第二径向段上的数据轨道的轨道密度相比，第一径向段上的螺旋轨道的较陡的斜率导致数据轨道的轨道密度比第一径向段更低。