公开(公告)号：US08085489B2

公开(公告)日：2011-12-27

申请号：US12538039

申请日：2009-08-07

Applicant: Ryohheita Hattori ,  Masaki Yoshioka ,  Suthasun Thambirajah ,  Minoru Hashimoto ,  Kei Yasuna

Inventor： Ryohheita Hattori ,  Masaki Yoshioka ,  Suthasun Thambirajah ,  Minoru Hashimoto ,  Kei Yasuna

IPC: G11B21/02 ,  G11B5/596

CPC classification number: G11B5/59633 ,  G11B5/59638 ,  G11B5/59666 ,  G11B5/59688

Abstract: A method for writing servo patterns onto a disk of a disk drive. The method includes providing a plurality of different drive currents for an actuator while pushing the actuator into a crash stop defining a swing range of the actuator. The method also includes performing a write operation for at least one of the plurality of different drive currents to write a plurality of servo pattern tracks including a plurality of separate servo pattern sectors. Furthermore, the method includes gradually changing a drive current of the plurality of different drive currents while pushing the actuator into the crash stop so as to gradually move a read element in searching for a servo pattern track to a radial position different from a radial position of the write element. Moreover, the method includes positioning the read element at one of the plurality of servo pattern tracks.

Abstract translation: 一种将伺服模式写入磁盘驱动器的磁盘上的方法。 该方法包括为致动器提供多个不同的驱动电流，同时将致动器推动到限定致动器的摆动范围的紧急停止。 该方法还包括对多个不同驱动电流中的至少一个进行写入操作以写入包括多个分离的伺服模式扇区的多个伺服模式轨道。 此外，该方法包括逐渐改变多个不同驱动电流的驱动电流，同时将致动器推入紧急停止状态，以便逐渐移动读取元件以搜索伺服模式轨迹到与径向位置不同的径向位置 写元素。 此外，该方法包括将读取元件定位在多个伺服模式轨迹中的一个上。

公开(公告)号：US20100033868A1

公开(公告)日：2010-02-11

申请号：US12538039

申请日：2009-08-07

Applicant: Ryohheita HATTORI ,  Masaki YOSHIOKA ,  Suthasun THAMBIRAJAH ,  Minoru HASHIMOTO ,  Kei YASUNA

Inventor： Ryohheita HATTORI ,  Masaki YOSHIOKA ,  Suthasun THAMBIRAJAH ,  Minoru HASHIMOTO ,  Kei YASUNA

IPC: G11B21/02

CPC classification number: G11B5/59633 ,  G11B5/59638 ,  G11B5/59666 ,  G11B5/59688

Abstract: A method for writing servo patterns onto a disk of a disk drive. The method includes providing a plurality of different drive currents for an actuator while pushing the actuator into a crash stop defining a swing range of the actuator. The method also includes performing a write operation for at least one of the plurality of different drive currents to write a plurality of servo pattern tracks including a plurality of separate servo pattern sectors. Furthermore, the method includes gradually changing a drive current of the plurality of different drive currents while pushing the actuator into the crash stop so as to gradually move a read element in searching for a servo pattern track to a radial position different from a radial position of the write element. Moreover, the method includes positioning the read element at one of the plurality of servo pattern tracks.

Abstract translation: 一种将伺服模式写入磁盘驱动器的磁盘上的方法。 该方法包括为致动器提供多个不同的驱动电流，同时将致动器推动到限定致动器的摆动范围的紧急停止。 该方法还包括对多个不同驱动电流中的至少一个进行写入操作以写入包括多个分离的伺服模式扇区的多个伺服模式轨道。 此外，该方法包括逐渐改变多个不同驱动电流的驱动电流，同时将致动器推入紧急停止状态，以便逐渐移动读取元件以搜索伺服模式轨迹到与径向位置不同的径向位置 写元素。 此外，该方法包括将读取元件定位在多个伺服模式轨迹中的一个上。