公开(公告)号：US07221533B2

公开(公告)日：2007-05-22

申请号：US11262716

申请日：2005-11-01

申请人： Masafumi Iwashiro ,  Masahide Yatsu ,  Hideo Sado

发明人： Masafumi Iwashiro ,  Masahide Yatsu ,  Hideo Sado

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/59627 ,  G11B5/59633

摘要： A method of writing servo information for use in head positioning control on a disk medium incorporated in a disk drive, including executing the head positioning control based on original servo information recorded on the disk medium, producing positioning correction information to correct a positioning error, and recording the positioning correction information in a correction information recording buffer.

摘要翻译： 一种写入用于磁盘定位控制的伺服信息的方法，包括：根据记录在磁盘介质上的原始伺服信息执行磁头定位控制，产生定位校正信息以校正定位误差;以及 在校正信息记录缓冲器中记录定位校正信息。

公开(公告)号：US07423835B2

公开(公告)日：2008-09-09

申请号：US11590758

申请日：2006-11-01

申请人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Shouji Nakajima ,  Seiji Mizukoshi ,  Shinichiro Kouhara

发明人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Shouji Nakajima ,  Seiji Mizukoshi ,  Shinichiro Kouhara

IPC分类号： G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59633 ,  G11B5/59638 ,  G11B5/59661

摘要： According to one embodiment, in a disk drive using a disk medium storing spiral servo information, a CPU generates virtual servo information having assumed virtual track centers corresponding to centers of concentric data tracks. The CPU performs control to position a head to the center of the concentric data track by using the virtual servo information.

摘要翻译： 根据一个实施例，在使用存储螺旋伺服信息的磁盘介质的磁盘驱动器中，CPU生成具有与同心数据磁道的中心相对应的具有虚拟磁道中心的虚拟伺服信息。 CPU执行控制以通过使用虚拟伺服信息将磁头定位在同心数据磁道的中心。

公开(公告)号：US20080068740A1

公开(公告)日：2008-03-20

申请号：US11898565

申请日：2007-09-13

申请人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Katsuki Ueda ,  Seiji Mizukoshi ,  Shouji Nakajima

发明人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Katsuki Ueda ,  Seiji Mizukoshi ,  Shouji Nakajima

IPC分类号： G11B21/02

CPC分类号： G11B5/59655 ,  G11B5/59638

摘要： According to one embodiment, a disk drive having a disk medium on which servo data is recorded, and a control unit that controls the positioning of a head, moving the head to a target position on the disk medium in accordance with the servo data. The servo data contains servo-burst patterns written in units of servo-track pitches. A part of each servo-burs pattern is invalidated (trimmed).

摘要翻译： 根据一个实施例，具有记录有伺服数据的盘介质的盘驱动器和控制头的定位的控制单元，根据伺服数据将头移动到盘介质上的目标位置。 伺服数据包含以伺服轨道间距为单位写入的伺服突发模式。 每个伺服毛刺图案的一部分无效（修剪）。

公开(公告)号：US20060109583A1

公开(公告)日：2006-05-25

申请号：US11253643

申请日：2005-10-20

申请人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro

发明人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro

IPC分类号： G11B21/02 ,  G11B27/36

CPC分类号： G11B5/59633 ,  G11B5/59638

摘要： There is disclosed a servo information writing apparatus comprising a disk drive and an examination unit. The examination unit executes examination to select an adequate servo pattern as servo information from a plurality of types of servo patterns recorded beforehand in a disk medium incorporated in the disk drive. The selection unit executes an examination to select the adequate servo pattern by use of a control and signal processing system incorporated in the disk drive.

摘要翻译： 公开了一种包括磁盘驱动器和检查单元的伺服信息写入装置。 检查单元执行检查以从预先记录在包含在盘驱动器中的盘介质中的多种类型的伺服模式中选择足够的伺服模式作为伺服信息。 选择单元通过使用包含在盘驱动器中的控制和信号处理系统执行检查以选择适当的伺服模式。

公开(公告)号：US20080002279A1

公开(公告)日：2008-01-03

申请号：US11819909

申请日：2007-06-29

申请人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Katsuki Ueda ,  Seiji Mizukoshi ,  Shouji Nakajima

发明人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Katsuki Ueda ,  Seiji Mizukoshi ,  Shouji Nakajima

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59638 ,  G11B5/59661 ,  G11B5/59666

摘要： According to one embodiment, a self-servo writing method for use in disk drives, which has a first process and a second process. In the first process, a base-servo pattern containing address codes and servo-burst patterns is recorded on a disk medium in units of one-track pitches. In the second process, a drive-servo pattern, which is a spiral servo pattern, is recorded on the disk medium, by using the base-servo pattern and the self-servo writing function of the disk drive.

摘要翻译： 根据一个实施例，一种用于磁盘驱动器的自伺服写入方法，其具有第一处理和第二处理。 在第一处理中，包含地址码和伺服突发图案的基本伺服模式以单轨道间隔为单位被记录在盘介质上。 在第二过程中，通过使用基本伺服模式和磁盘驱动器的自伺服写入功能，将作为螺旋伺服模式的驱动伺服模式记录在磁盘介质上。

公开(公告)号：US20070097539A1

公开(公告)日：2007-05-03

申请号：US11590758

申请日：2006-11-01

申请人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Shouji Nakajima ,  Seiji Mizukoshi ,  Shinichiro Kouhara

发明人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Shouji Nakajima ,  Seiji Mizukoshi ,  Shinichiro Kouhara

IPC分类号： G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59633 ,  G11B5/59638 ,  G11B5/59661

摘要： According to one embodiment, in a disk drive using a disk medium storing spiral servo information, a CPU generates virtual servo information having assumed virtual track centers corresponding to centers of concentric data tracks. The CPU performs control to position a head to the center of the concentric data track by using the virtual servo information.

摘要翻译： 根据一个实施例，在使用存储螺旋伺服信息的磁盘介质的磁盘驱动器中，CPU生成具有与同心数据磁道的中心相对应的具有虚拟磁道中心的虚拟伺服信息。 CPU执行控制以通过使用虚拟伺服信息将磁头定位在同心数据磁道的中心。

公开(公告)号：US20070047132A1

公开(公告)日：2007-03-01

申请号：US11447981

申请日：2006-06-07

申请人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Shouji Nakajima ,  Seiji Mizukoshi ,  Shinichirou Kouhara

发明人： Hideo Sado ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Shouji Nakajima ,  Seiji Mizukoshi ,  Shinichirou Kouhara

IPC分类号： G11B5/58

CPC分类号： G11B5/59655

摘要： According to one embodiment, a servo write method for writing servo information to a disk medium used in a disk drive is disclosed. In the procedure of the servo write method, first servo information is spirally written to a disk medium in a clean room before the disk medium is incorporated into the disk drive, then, the disk medium is incorporated into the disk drive, and second servo information is concentrically written to the disk medium already incorporated in the disk drive.

摘要翻译： 根据一个实施例，公开了一种用于将伺服信息写入到用于磁盘驱动器中的磁盘介质的伺服写入方法。 在伺服写入方法的过程中，在将磁盘介质并入磁盘驱动器之前，将第一伺服信息螺旋地写入清洁室中的磁盘介质，然后将磁盘介质并入磁盘驱动器中，并且将第二伺服信息 同心地写入已经并入磁盘驱动器的磁盘介质。

公开(公告)号：US20060221491A1

公开(公告)日：2006-10-05

申请号：US11262896

申请日：2005-11-01

申请人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Seiji Mizukoshi

发明人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Seiji Mizukoshi

IPC分类号： G11B5/596

CPC分类号： G11B5/59655 ,  G11B5/59688

摘要： When a sub-track having burst data A and D, a sub-track having burst data A and C, a sub-track having burst data B and C, and sub-track having burst data B and D are repeatedly arranged in this order, in accordance with equations 1 and 2, a sub-track t included in a track T determines the value of a constant n within a range of 1.2 (inclusive) to 1.8 (inclusive) so as to obtain linearity between a position in a disc radial direction r and a head position P in a disc radial direction r in the sub-track t. Subsequently, the head position P is calculated using the determined constant n and equations 1 and 2: P=(A−B)*|A−B|(n−1)/(|A−B|n+|C−D|ˆn)  (1) P=(C−D)*|C−D|(n−1)/(|A−B|n+|C−D|n)  (2)

公开(公告)号：US07173789B2

公开(公告)日：2007-02-06

申请号：US11262896

申请日：2005-11-01

申请人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Seiji Mizukoshi

发明人： Shinichirou Kouhara ,  Masahide Yatsu ,  Masafumi Iwashiro ,  Hideo Sado ,  Seiji Mizukoshi

IPC分类号： G11B21/02

CPC分类号： G11B5/59655 ,  G11B5/59688

摘要： When a sub-track having burst data A and D, a sub-track having burst data A and C, a sub-track having burst data B and C, and sub-track having burst data B and D are repeatedly arranged in this order, in accordance with equations 1 and 2, a sub-track t included in a track T determines the value of a constant n within a range of 1.2 (inclusive) to 1.8 (inclusive) so as to obtain linearity between a position in a disc radial direction r and a head position P in a disc radial direction r in the sub-track t. Subsequently, the head position P is calculated using the determined constant n and equations 1 and 2: P=(A−B)*|A−B|(n−1)/(|A−B|n+|C−D|^n)  (1) P=(C−D)*|C−D|(n−1)/(|A−B|n+|C−D|n)  (2)

公开(公告)号：US20060114599A1

公开(公告)日：2006-06-01

申请号：US11262716

申请日：2005-11-01

申请人： Masafumi Iwashiro ,  Masahide Yatsu ,  Hideo Sado

发明人： Masafumi Iwashiro ,  Masahide Yatsu ,  Hideo Sado

IPC分类号： G11B5/596 ,  G11B21/02

CPC分类号： G11B5/59627 ,  G11B5/59633

摘要： There is disclosed a servo information writing method of writing servo information for use in head positioning control on a disk medium incorporated in a disk drive. The present method executes a procedure having a step of executing the head positioning control based on original servo information recorded on the disk medium, a step of producing positioning correction information to correct a positioning error, and a step of recording the positioning correction information in a correction information recording buffer.

摘要翻译： 公开了一种将磁头定位控制中使用的伺服信息写入到磁盘驱动器中的磁盘介质上的伺服信息写入方法。 本方法执行具有根据记录在盘介质上的原始伺服信息执行头位置控制的步骤的步骤，产生用于校正定位误差的定位校正信息的步骤，以及将定位校正信息记录在 校正信息记录缓冲器。