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1. 发明申请

US20060262449A1 Method and data storage device for writing patterns onto recording disk 失效
标题翻译：用于将图案写入记录盘的方法和数据存储装置
公开(公告)号：US20060262449A1
公开(公告)日：2006-11-23
申请号：US11437552
申请日：2006-05-19
申请人： Fuminori Sai , Yutaka Ozawa , Kohji Takasaki , Hiroshi Yanagisawa , Satoshi Yamamoto
发明人： Fuminori Sai , Yutaka Ozawa , Kohji Takasaki , Hiroshi Yanagisawa , Satoshi Yamamoto
IPC分类号： G11B19/02
CPC分类号： G11B5/59633
摘要： Embodiments of the invention efficiently conduct servo corrections for preventing error propagation during SSW. In an example of the present invention, a servo position signal generator generates a servo position signal indicative of the current position of a read element on the basis of a servo signal from a servo channel. A target position generator generates correction data from multiply and add operations between the PES generated when the track that the read element is following is written, and pre-registered correction coefficients. A correction target position is generated from the correction data and a reference target position, and then output to a position error calculator. The position error calculator generates a position error signal (PES) from the servo position signal and the target position signal, and outputs PES to a servo controller. The servo controller generates a control signal (DACOUT) in accordance with PES, and a motor driver unit supplies an electric current of a required value to a VCM in accordance with the control signal.
摘要翻译：本发明的实施例有效地进行伺服校正，以防止SSW期间的错误传播。在本发明的一个例子中，伺服位置信号发生器基于来自伺服通道的伺服信号产生指示读取元件的当前位置的伺服位置信号。目标位置发生器在读取元件所追踪的轨迹被写入时产生的PES和预先登记的校正系数之间乘法生成校正数据并且在其之间添加操作。从校正数据和参考目标位置产生校正目标位置，然后输出到位置误差计算器。位置误差计算器从伺服位置信号和目标位置信号产生位置误差信号（PES），并将PES输出到伺服控制器。伺服控制器根据PES生成控制信号（DACOUT），并且电动机驱动单元根据控制信号向VCM提供所需值的电流。

2. 发明授权

US07286316B2 Method and data storage device for writing patterns onto recording disk 失效
标题翻译：用于将图案写入记录盘的方法和数据存储装置
公开(公告)号：US07286316B2
公开(公告)日：2007-10-23
申请号：US11437552
申请日：2006-05-19
申请人： Fuminori Sai , Yutaka Ozawa , Kohji Takasaki , Hiroshi Yanagisawa , Satoshi Yamamoto
发明人： Fuminori Sai , Yutaka Ozawa , Kohji Takasaki , Hiroshi Yanagisawa , Satoshi Yamamoto
IPC分类号： G11B21/02 , G11B5/596 , G11B5/55
CPC分类号： G11B5/59633
摘要： Embodiments of the invention efficiently conduct servo corrections for preventing error propagation during SSW. In an example of the present invention, a servo position signal generator generates a servo position signal indicative of the current position of a read element on the basis of a servo signal from a servo channel. A target position generator generates correction data from multiply and add operations between the PES generated when the track that the read element is following is written, and pre-registered correction coefficients. A correction target position is generated from the correction data and a reference target position, and then output to a position error calculator. The position error calculator generates a position error signal (PES) from the servo position signal and the target position signal, and outputs PES to a servo controller. The servo controller generates a control signal (DACOUT) in accordance with PES, and a motor driver unit supplies an electric current of a required value to a VCM in accordance with the control signal.
摘要翻译：本发明的实施例有效地进行伺服校正，以防止SSW期间的错误传播。在本发明的一个例子中，伺服位置信号发生器基于来自伺服通道的伺服信号产生指示读取元件的当前位置的伺服位置信号。目标位置发生器在读取元件所追踪的轨迹被写入时产生的PES和预先登记的校正系数之间乘法生成校正数据并且在其之间添加操作。从校正数据和参考目标位置产生校正目标位置，然后输出到位置误差计算器。位置误差计算器从伺服位置信号和目标位置信号产生位置误差信号（PES），并将PES输出到伺服控制器。伺服控制器根据PES生成控制信号（DACOUT），并且电动机驱动单元根据控制信号向VCM提供所需值的电流。

3. 发明授权

US07646561B2 Method of writing pattern in disk, method of following track on disk, and apparatus for writing pattern in disk 失效
标题翻译：在磁盘中写入模式的方法，在磁盘上跟踪轨迹的方法，以及在盘中写入模式的装置
公开(公告)号：US07646561B2
公开(公告)日：2010-01-12
申请号：US11895322
申请日：2007-08-23
申请人： Kohji Takasaki , Fuminori Sai , Kei Yasuna , Tomoyuki Oyama , Satoshi Yamamoto
发明人： Kohji Takasaki , Fuminori Sai , Kei Yasuna , Tomoyuki Oyama , Satoshi Yamamoto
IPC分类号： G11B5/596
CPC分类号： G11B5/59688 , G11B5/59666
摘要： Embodiments of the present invention efficiently perform servo correction for prevention of propagation of a position error in a radial direction in self servo write (SSW). According to one embodiment, in SSW, a target position of a reference track TO in writing a servo write track TN is corrected. The target position is represented as a target value of a position signal calculated from a signal read by a read element. A signal indicating a deviation (a position error) from the target position (the target value) is referred to as PES. The SSW in this example performs correction of target positions in respective tracks using an impulse response of a servo system. Consequently, it is possible to efficiently and effectively prevent the propagation of position error in the SSW.
摘要翻译：本发明的实施例有效地进行伺服校正，以防止自伺服写入（SSW）中径向位置误差的传播。根据一个实施例，在SSW中，校正写入伺服写磁道TN的参考磁道TO的目标位置。目标位置被表示为根据由读取元件读取的信号计算出的位置信号的目标值。指示与目标位置（目标值）的偏差（位置误差）的信号被称为PES。该示例中的SSW使用伺服系统的脉冲响应来执行各轨道中的目标位置的校正。因此，可有效且有效地防止SSW中的位置误差的传播。

4. 发明申请

US20080068741A1 Method of writing pattern in disk, method of following track on disk, and apparatus for writing pattern in disk 失效
标题翻译：在磁盘中写入模式的方法，在磁盘上跟踪轨迹的方法，以及在盘中写入模式的装置
公开(公告)号：US20080068741A1
公开(公告)日：2008-03-20
申请号：US11895322
申请日：2007-08-23
申请人： Kohji Takasaki , Fuminori Sai , Kei Yasuna , Tomoyuki Oyama , Satoshi Yamamoto
发明人： Kohji Takasaki , Fuminori Sai , Kei Yasuna , Tomoyuki Oyama , Satoshi Yamamoto
IPC分类号： G11B5/596
CPC分类号： G11B5/59688 , G11B5/59666
摘要： Embodiments of the present invention efficiently perform servo correction for prevention of propagation of a position error in a radial direction in self servo write (SSW). According to one embodiment, in SSW, a target position of a reference track TO in writing a servo write track TN is corrected. The target position is represented as a target value of a position signal calculated from a signal read by a read element. A signal indicating a deviation (a position error) from the target position (the target value) is referred to as PES. The SSW in this example performs correction of target positions in respective tracks using an impulse response of a servo system. Consequently, it is possible to efficiently and effectively prevent the propagation of position error in the SSW.
摘要翻译：本发明的实施例有效地进行伺服校正，以防止自伺服写入（SSW）中径向位置误差的传播。根据一个实施例，在SSW中，校正写入伺服写磁道TN的参考磁道TO的目标位置。目标位置被表示为根据由读取元件读取的信号计算出的位置信号的目标值。指示与目标位置（目标值）的偏差（位置误差）的信号被称为PES。该示例中的SSW使用伺服系统的脉冲响应来执行各轨道中的目标位置的校正。因此，可有效且有效地防止SSW中的位置误差的传播。

5. 发明申请

US20050207253A1 Storage devices and method of transferring file between the devices 有权
标题翻译：存储设备和在设备之间传输文件的方法
公开(公告)号：US20050207253A1
公开(公告)日：2005-09-22
申请号：US11084693
申请日：2005-03-18
申请人： Makoto Takase , Kohji Takasaki , Minoru Hashimoto , Kenji Okada , Hiroshi Oshikawa , Yasuhiro Kotani , Satoshi Yamamoto , Keishi Takahashi
发明人： Makoto Takase , Kohji Takasaki , Minoru Hashimoto , Kenji Okada , Hiroshi Oshikawa , Yasuhiro Kotani , Satoshi Yamamoto , Keishi Takahashi
IPC分类号： G06F3/06 , G11B5/86 , G11B20/10 , H01L31/119
CPC分类号： G11B5/86 , G06F3/0604 , G06F3/0632 , G06F3/0634 , G06F3/0689
摘要： A file is transferred directly between a parent magnetic-disk device and a child magnetic-disk device. In one embodiment, a parent magnetic-disk device has a host-mode execution program, whereas a child magnetic-disk device is capable operating in a device mode as is the case with an ordinary magnetic-disk device. The parent magnetic-disk device has an operating-mode-setting unit including a special-purpose jumper block. An MPU employed in the parent magnetic-disk device executes the host-mode execution program to put the parent magnetic-disk device in a host mode. At an activation time, the MPU refers to the logic of the special jumper block to start an operation in the host mode. The MPU controls the parent magnetic-disk device to directly transfer a file to the child magnetic-disk device. Thus, the file can be transferred between the parent and child magnetic-disk devices without intervention by a host computer.
摘要翻译：文件直接在父磁盘装置和子磁盘装置之间传送。在一个实施例中，母磁盘装置具有主机模式执行程序，而子磁盘装置能够像普通磁盘装置一样在设备模式下运行。母磁盘装置具有包括专用跳线块的操作模式设定单元。在母磁盘装置中使用的MPU执行主机模式执行程序以将母磁盘装置置于主机模式。在激活时，MPU参考专用跳线块的逻辑，以在主机模式下开始运行。 MPU控制母磁盘装置将文件直接传送到子磁盘装置。因此，该文件可以在父磁盘和子磁盘设备之间进行传输，而无需主计算机的干预。

6. 发明授权

US07620740B2 Storage devices and method of transferring file between the devices 有权
标题翻译：存储设备和在设备之间传输文件的方法
公开(公告)号：US07620740B2
公开(公告)日：2009-11-17
申请号：US11084693
申请日：2005-03-18
申请人： Makoto Takase , Kohji Takasaki , Minoru Hashimoto , Kenji Okada , Hiroshi Oshikawa , Yasuhiro Kotani , Satoshi Yamamoto , Keishi Takahashi
发明人： Makoto Takase , Kohji Takasaki , Minoru Hashimoto , Kenji Okada , Hiroshi Oshikawa , Yasuhiro Kotani , Satoshi Yamamoto , Keishi Takahashi
IPC分类号： G06F17/00
CPC分类号： G11B5/86 , G06F3/0604 , G06F3/0632 , G06F3/0634 , G06F3/0689
摘要： A file is transferred directly between a parent magnetic-disk device and a child magnetic-disk device. In one embodiment, a parent magnetic-disk device has a host-mode execution program, whereas a child magnetic-disk device is capable operating in a device mode as is the case with an ordinary magnetic-disk device. The parent magnetic-disk device has an operating-mode-setting unit including a special-purpose jumper block. An MPU employed in the parent magnetic-disk device executes the host-mode execution program to put the parent magnetic-disk device in a host mode. At an activation time, the MPU refers to the logic of the special jumper block to start an operation in the host mode. The MPU controls the parent magnetic-disk device to directly transfer a file to the child magnetic-disk device. Thus, the file can be transferred between the parent and child magnetic-disk devices without intervention by a host computer.
摘要翻译：文件直接在父磁盘装置和子磁盘装置之间传送。在一个实施例中，母磁盘装置具有主机模式执行程序，而子磁盘装置能够像普通磁盘装置一样在设备模式下运行。母磁盘装置具有包括专用跳线块的操作模式设定单元。在母磁盘装置中使用的MPU执行主机模式执行程序以将母磁盘装置置于主机模式。在激活时，MPU参考专用跳线块的逻辑，以在主机模式下开始运行。 MPU控制母磁盘装置将文件直接传送到子磁盘装置。因此，该文件可以在父磁盘和子磁盘设备之间进行传输，而无需主计算机的干预。

7. 发明授权

US07446967B2 Method of measuring head characteristics of a data storage device, and data storage device 失效
标题翻译：测量数据存储装置的头部特性的方法和数据存储装置
公开(公告)号：US07446967B2
公开(公告)日：2008-11-04
申请号：US11222913
申请日：2005-09-08
申请人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Chikako Sasaki , Satoshi Yamamoto
发明人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Chikako Sasaki , Satoshi Yamamoto
IPC分类号： G11B21/02
CPC分类号： G11B27/36 , G11B5/3166 , G11B5/455 , G11B5/59633 , G11B5/59666 , G11B2220/2516
摘要： Embodiments of the invention relate to measuring characteristics of a head with an actuator put in a state of being pushed against a crush stop. In one embodiment, with a head placed on an innermost ID side or with the current of a VCM sustained at a magnitude I_mid, a burst pattern is written onto a recording disk. At this stage, the gain of a VGA is equal to its maximum value Gmax. Then, while the current of the VCM is being changed gradually, the gain of the VCA is measured. As the current of the VCM becomes equal to a magnitude I_center, a read element of the head is positioned right above the burst pattern. At that time, the gain of a VGA is equal to its minimum value Gmin. As the read element is further moved to the OD side, the gain of the VGA again becomes equal to the maximum value Gmax. A read/write offset of the head is identified by the magnitudes I_center and I_mid.
摘要翻译：本发明的实施例涉及测量具有致动器的头部的特性，所述致动器处于被压靠在挤压止动件上的状态。在一个实施例中，当头部放置在最内侧的ID侧或者VCM的电流维持在幅度I_mid时，突发图案被写入到记录盘上。在这个阶段，VGA的增益等于其最大值Gmax。然后，当VCM的电流逐渐变化时，测量VCA的增益。当VCM的电流变得等于幅度I_center时，头部的读取元件位于突发图案的正上方。此时VGA的增益等于其最小值Gmin。当读取元件进一步移动到OD侧时，VGA的增益再次等于最大值Gmax。磁头的读/写偏移量由I_center和I_mid的大小识别。

8. 发明申请

US20060056097A1 Method of measuring head characteristics of a data storage device, and data storage device 失效
标题翻译：测量数据存储装置的头部特性的方法和数据存储装置
公开(公告)号：US20060056097A1
公开(公告)日：2006-03-16
申请号：US11222913
申请日：2005-09-08
申请人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Chikako Sasaki , Satoshi Yamamoto
发明人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Chikako Sasaki , Satoshi Yamamoto
IPC分类号： G11B21/02 , G11B5/09 , G11B27/36
CPC分类号： G11B27/36 , G11B5/3166 , G11B5/455 , G11B5/59633 , G11B5/59666 , G11B2220/2516
摘要： Embodiments of the invention relate to measuring characteristics of a head with an actuator put in a state of being pushed against a crush stop. In one embodiment, with a head placed on an innermost ID side or with the current of a VCM sustained at a magnitude I_mid, a burst pattern is written onto a recording disk. At this stage, the gain of a VGA is equal to its maximum value Gmax. Then, while the current of the VCM is being changed gradually, the gain of the VCA is measured. As the current of the VCM becomes equal to a magnitude I_center, a read element of the head is positioned right above the burst pattern. At that time, the gain of a VGA is equal to its minimum value Gmin. As the read element is further moved to the OD side, the gain of the VGA again becomes equal to the maximum value Gmax. A read/write offset of the head is identified by the magnitudes I_center and I_mid.
摘要翻译：本发明的实施例涉及测量具有致动器的头部的特性，所述致动器处于被压靠在挤压止动件上的状态。在一个实施例中，当头部放置在最内侧的ID侧或者VCM的电流维持在幅度I_mid时，突发图案被写入到记录盘上。在这个阶段，VGA的增益等于其最大值Gmax。然后，当VCM的电流逐渐变化时，测量VCA的增益。当VCM的电流变得等于幅度I_center时，头部的读取元件位于突发图案的正上方。此时VGA的增益等于其最小值Gmin。当读取元件进一步移动到OD侧时，VGA的增益再次等于最大值Gmax。磁头的读/写偏移量由I_center和I_mid的大小识别。

9. 发明申请

US20060056099A1 Method of writing patterns using head with correct phases, and data storage device 失效
公开(公告)号：US20060056099A1
公开(公告)日：2006-03-16
申请号：US11223486
申请日：2005-09-08
申请人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Satoshi Yamamoto
发明人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Satoshi Yamamoto
IPC分类号： G11B21/02 , G11B5/09
CPC分类号： G11B5/59633 , G11B5/59666
摘要： Embodiments of the invention relate to writing servo patterns onto a recording disk with a high degree of accuracy and with correct phases in a servo-pattern-writing process. An In-Drive SSW (TSSW) process is processing to write product servo patterns onto a recording disk on the basis of time aligned patterns. In the processing to write product servo patterns onto a recording disk, time intervals between time aligned patterns already written on an ID-side track are measured, and timings to write the product servo patterns onto the recording disk on the basis of the measured time intervals are determined. Product servo patterns are then written onto an OD-side track with the determined timings relative to detections of the time aligned patterns used as references. In this way, circumferential-direction positions of product servo patterns written on a track may be aligned to the corresponding circumferential-direction positions of product servo patterns written on an adjacent track.

10. 发明授权

US07342735B2 Method of writing patterns onto a recording disk, and data storage device 失效
标题翻译：将图案写入记录盘的方法以及数据存储装置
公开(公告)号：US07342735B2
公开(公告)日：2008-03-11
申请号：US11223481
申请日：2005-09-08
申请人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Satoshi Yamamoto
发明人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Satoshi Yamamoto
IPC分类号： G11B21/02
CPC分类号： G11B5/59633 , G11B5/59666
摘要： Embodiments of the invention relate to writing servo patterns having aligned phases onto a recording disk in a process to write the servo patterns onto the disk. In one embodiment, time aligned patterns are written onto a magnetic disk on the basis of time intervals between base patterns with timings aligned to each other throughout tracks on the disk. The time aligned patterns are written onto typically servo tracks at time intervals Ts with aligned timings. Then, on the basis of these time aligned patterns, product servo patterns are written onto the disk. A time aligned pattern is written onto the disk after the lapse of a predetermined write time period since detection of a base pattern corresponding to the time aligned pattern. The write time period is determined on the basis of time intervals between base patterns on adjacent tracks.
摘要翻译：本发明的实施例涉及在将伺服模式写入到盘上的过程中将具有排列相位的伺服模式写入到记录盘上。在一个实施例中，基于在盘上的轨迹上彼此对准的定时的基本图案之间的时间间隔，将时间对准图案写入磁盘。时间对准图案以对准的定时以时间间隔Ts被写入典型的伺服轨道。然后，基于这些时间对准图案，将产品伺服模式写入到盘上。在经过预定的写入时间段之后，由于检测到与时间对准图案对应的基本图案，时间对准图案被写入到盘上。基于相邻轨道上的基本图案之间的时间间隔来确定写入时间段。

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