公开(公告)号：US08098448B2

公开(公告)日：2012-01-17

申请号：US12639926

申请日：2009-12-16

申请人： Yoshihiko Maeda ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

发明人： Yoshihiko Maeda ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

IPC分类号： G11B5/09

CPC分类号： G11B20/1258 ,  G11B2020/1242 ,  G11B2020/1282 ,  G11B2020/1292 ,  G11B2220/2516

摘要： A method for dividing a data area on a disk into a plurality of concentric zones and determining a format for each zone so that data tracks in the zone have the same number of data sectors. The method includes dividing a data area into a plurality of zones with provisional boundaries. The method also includes determining a linear recording density for a selected zone. The method further includes selecting the number of data sectors per data track corresponding to the determined linear recording density from specified values. Moreover, the method includes resetting a boundary of the zone at a new boundary shifted from the provisional boundary according to a selected value.

摘要翻译： 一种用于将盘上的数据区划分成多个同心区并且确定每个区的格式的方法，使得区中的数据轨迹具有相同数量的数据扇区。 该方法包括将数据区域划分成具有临时边界的多个区域。 该方法还包括确定所选区域的线性记录密度。 该方法还包括从指定值中选择对应于所确定的线性记录密度的每个数据轨道的数据扇区数。 此外，该方法包括根据所选择的值从临时边界移位的新边界复位区域的边界。

公开(公告)号：US20110085259A1

公开(公告)日：2011-04-14

申请号：US12639926

申请日：2009-12-16

申请人： Yoshihiko MAEDA ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

发明人： Yoshihiko MAEDA ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

IPC分类号： G11B5/09

CPC分类号： G11B20/1258 ,  G11B2020/1242 ,  G11B2020/1282 ,  G11B2020/1292 ,  G11B2220/2516

摘要： A method for dividing a data area on a disk into a plurality of concentric zones and determining a format for each zone so that data tracks in the zone have the same number of data sectors. The method includes dividing a data area into a plurality of zones with provisional boundaries. The method also includes determining a linear recording density for a selected zone. The method further includes selecting the number of data sectors per data track corresponding to the determined linear recording density from specified values. Moreover, the method includes resetting a boundary of the zone at a new boundary shifted from the provisional boundary according to a selected value.

摘要翻译： 一种用于将盘上的数据区划分成多个同心区并且确定每个区的格式的方法，使得区中的数据轨迹具有相同数量的数据扇区。 该方法包括将数据区域划分成具有临时边界的多个区域。 该方法还包括确定所选区域的线性记录密度。 该方法还包括从指定值中选择对应于所确定的线性记录密度的每个数据轨道的数据扇区数。 此外，该方法包括根据所选择的值从临时边界移位的新边界复位区域的边界。

公开(公告)号：US20070263310A1

公开(公告)日：2007-11-15

申请号：US11796134

申请日：2007-04-25

申请人： Masaomi Ikeda ,  Takao Matsui ,  Masahiko Koizumi ,  Masato Taniguchi ,  Kohji Nakao ,  Hideaki Maeda

发明人： Masaomi Ikeda ,  Takao Matsui ,  Masahiko Koizumi ,  Masato Taniguchi ,  Kohji Nakao ,  Hideaki Maeda

IPC分类号： G11B20/10

CPC分类号： G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10481 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/36 ,  G11B2005/0016 ,  G11B2020/1863 ,  G11B2220/2516

摘要： Embodiments in accordance with the present invention provide a magnetic disk drive capable of achieving error recovery stably in a simple configuration in the event of thermal asperity (TA) and minimizing the error recovery time required, and a method for controlling the disk drive. According to one embodiment, if TA occurs, a cutoff frequency of a high-pass filter to which a data read signal is input is first increased and a loop gain of a low-order finite impulse response (FIR) filter connected in series to an FIR filter is also increased as high as possible. Next, a Viterbi decoder to which a signal is input from the low-order FIR filter provides feedback to the low-order FIR filter so that an input signal error becomes a minimum. Tap coefficients of the low-order FIR filter are thus optimized.

摘要翻译： 根据本发明的实施例提供一种磁盘驱动器，其能够在热不均匀（TA）的情况下以简单的配置稳定地实现误差恢复，并且使所需的错误恢复时间最小化，以及控制盘驱动器的方法。 根据一个实施例，如果发生TA，则首先增加输入数据读取信号的高通滤波器的截止频率，并将低阶有限脉冲响应（FIR）滤波器的环路增益串联连接到 FIR滤波器也尽可能高地增加。 接下来，从低阶FIR滤波器输入信号的维特比解码器向低阶FIR滤波器提供反馈，使得输入信号误差变得最小。 因此优化了低阶FIR滤波器的抽头系数。

公开(公告)号：US07054090B2

公开(公告)日：2006-05-30

申请号：US10601168

申请日：2003-06-19

申请人： Masaomi Ikeda ,  Nobuyuki Kitazaki ,  Kenji Ogasawara ,  Atsushi Takeichi ,  Hirofumi Yanase

发明人： Masaomi Ikeda ,  Nobuyuki Kitazaki ,  Kenji Ogasawara ,  Atsushi Takeichi ,  Hirofumi Yanase

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B21/02

摘要： Disclosed is a data storage device to provide servo patterns of a track pitch individually consistent with head characteristics (writing width, and reading width) in a recording medium of a hard disk device. The data storage device is provided with a disk having pitch information indicating a track pitch recorded in a predetermined area, and a head for scanning the disk to read the TPI ID and reading/writing data from/in the disk by being subjected to seeking control based on the TPI ID. The TPI ID is recorded as a part of a servo pattern in a TPI ID embedded area provided in an outer periphery of a data area of the disk.

摘要翻译： 公开了一种数据存储装置，用于提供与硬盘装置的记录介质中的头部特性（写入宽度和读取宽度）独立一致的轨道间距的伺服模式。 数据存储装置设置有具有指示记录在预定区域中的轨道间距的音高信息的盘，以及用于扫描盘以读取TPI ID并通过进行寻道控制从盘读取/写入数据的头 基于TPI ID。 在设置在盘的数据区的外围的TPI ID嵌入区域中记录TPI ID作为伺服模式的一部分。

公开(公告)号：US06798598B2

公开(公告)日：2004-09-28

申请号：US10091411

申请日：2002-03-05

申请人： Hiroaki Suzuki ,  Hideo Asano ,  Yumi Nagano ,  Michio Nakajima ,  Masaomi Ikeda ,  Masashi Murai

发明人： Hiroaki Suzuki ,  Hideo Asano ,  Yumi Nagano ,  Michio Nakajima ,  Masaomi Ikeda ,  Masashi Murai

IPC分类号： G11B502

CPC分类号： G11B5/012 ,  G11B5/035 ,  G11B2005/0013

摘要： A method for controlling write current to a write head during data write on a hard disk drive is disclosed. A direct access storage device includes a rotating storage medium in which data are magnetically written, a write head for writing data in the rotating storage medium, and a write current control circuit for changing write current-value settings to be supplied to the write head according to a predetermined elapsed time from the beginning of a write operation.

摘要翻译： 公开了一种在硬盘驱动器的数据写入期间控制对写入头的写入电流的方法。 直接存取存储装置包括磁数据写入数据的旋转存储介质，用于在旋转存储介质中写入数据的写入头，以及写入电流控制电路，用于根据提供给写入头的写入电流值设定改变 到从写入操作开始的预定经过时间。

公开(公告)号：US07133237B2

公开(公告)日：2006-11-07

申请号：US10652477

申请日：2003-08-29

申请人： Masaomi Ikeda ,  Nobuyuki Kitazaki ,  Kenji Ogasawara ,  Hirofumi Yanase

发明人： Masaomi Ikeda ,  Nobuyuki Kitazaki ,  Kenji Ogasawara ,  Hirofumi Yanase

IPC分类号： G11B21/02

CPC分类号： G11B5/59666 ,  G11B5/59633

摘要： The read/write offset between the read head and write head is used to determine the head width ratio between the read head width and write head width. The servo information is written onto the magnetic disk in accordance with the APC value and track pitch that are derived from the determined head with ratio.

摘要翻译： 读头和写头之间的读/写偏移用于确定读头宽度和写头宽度之间的头宽比。 伺服信息根据从确定的磁头的比例导出的APC值和磁道间距写入磁盘。

公开(公告)号：US5027588A

公开(公告)日：1991-07-02

申请号：US261967

申请日：1988-09-21

申请人： Masaomi Ikeda ,  Yoshimi Terajima ,  Nobuaki Nagatami ,  Hiroshi Akitoshi

发明人： Masaomi Ikeda ,  Yoshimi Terajima ,  Nobuaki Nagatami ,  Hiroshi Akitoshi

IPC分类号： B65B31/04

CPC分类号： B65B31/041

摘要： An inert gas substitution method comprising blowing an inert gas into a container in the state wherein an opening of a container is covered with an inert gas substitution apparatus (5, 20) having an inert gas blow opening (7, 30), thereby substituting the inert gas within the container, and after substitution, covering the opening of the container with a cover material film (15). An inert gas substitution apparatus (5) formed with an inert gas blow opening (7) and having a plate of which bottom surface is flat. An inert gas substitution apparatus (20) having a chamber (21) of which bottom surface is open, the chamber (21) covering an opening of a container to blow an inert gas into the container.

公开(公告)号：US07852589B2

公开(公告)日：2010-12-14

申请号：US11796134

申请日：2007-04-25

申请人： Masaomi Ikeda ,  Takao Matsui ,  Masahiko Koizumi ,  Masato Taniguchi ,  Kohji Nakao ,  Hideaki Maeda

发明人： Masaomi Ikeda ,  Takao Matsui ,  Masahiko Koizumi ,  Masato Taniguchi ,  Kohji Nakao ,  Hideaki Maeda

IPC分类号： G11B5/35

CPC分类号： G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10481 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/36 ,  G11B2005/0016 ,  G11B2020/1863 ,  G11B2220/2516

摘要： Embodiments in accordance with the present invention provide a magnetic disk drive capable of achieving error recovery stably in a simple configuration in the event of thermal asperity (TA) and minimizing the error recovery time required, and a method for controlling the disk drive. According to one embodiment, if TA occurs, a cutoff frequency of a high-pass filter to which a data read signal is input is first increased and a loop gain of a low-order finite impulse response (FIR) filter connected in series to an FIR filter is also increased as high as possible. Next, a Viterbi decoder to which a signal is input from the low-order FIR filter provides feedback to the low-order FIR filter so that an input signal error becomes a minimum. Tap coefficients of the low-order FIR filter are thus optimized.

摘要翻译： 根据本发明的实施例提供一种磁盘驱动器，其能够在热不均匀（TA）的情况下以简单的配置稳定地实现误差恢复，并且使所需的错误恢复时间最小化，以及控制盘驱动器的方法。 根据一个实施例，如果TA发生，则首先增加输入数据读取信号的高通滤波器的截止频率，并将低阶有限脉冲响应（FIR）滤波器的环路增益串联连接到 FIR滤波器也尽可能高地增加。 接下来，从低阶FIR滤波器输入信号的维特比解码器向低阶FIR滤波器提供反馈，使得输入信号误差变得最小。 因此优化了低阶FIR滤波器的抽头系数。

公开(公告)号：US20090215010A1

公开(公告)日：2009-08-27

申请号：US12380160

申请日：2009-02-23

申请人： Junji Tagami ,  Masaomi Ikeda ,  Toru Nikaido

发明人： Junji Tagami ,  Masaomi Ikeda ,  Toru Nikaido

IPC分类号： A61C5/10

CPC分类号： A61C13/0024

摘要： Provided is a dental restoration having improved conformity and bonding to a foundation. A method for producing such a dental restoration and a porcelain paste for the dental restoration are also provided.The dental restoration includes a ceramic framework and a porcelain layer deposited at least on the inner surface of the ceramic framework for being bonded by a dental adhesive to the outer surface of an abutment tooth in the mouth. In one preferred embodiment, the ceramic framework is formed of a zirconium oxide ceramic. In another preferred embodiment, the inner surface of the porcelain layer is silane-coupling-treated.

摘要翻译： 提供了具有改进的一致性和与基础结合的牙科修复体。 还提供了一种用于生产这种牙科修复体的方法和用于牙科修复体的瓷浆。 牙修复体包括至少沉积在陶瓷框架的内表面上的陶瓷框架和瓷层，用于通过牙科粘合剂粘合到口中的邻接齿的外表面。 在一个优选实施例中，陶瓷框架由氧化锆陶瓷形成。 在另一优选实施例中，瓷层的内表面经硅烷偶联处理。

公开(公告)号：US20050207049A1

公开(公告)日：2005-09-22

申请号：US11084770

申请日：2005-03-17

申请人： Masaomi Ikeda ,  Atsushi Tobari ,  Takao Matusi ,  Satoshi Hashimoto

发明人： Masaomi Ikeda ,  Atsushi Tobari ,  Takao Matusi ,  Satoshi Hashimoto

IPC分类号： G06F3/06 ,  G06F12/16 ,  G11B5/09 ,  G11B5/596 ,  G11B19/02 ,  G11B19/12 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/36

CPC分类号： G11B19/12 ,  G11B5/59633 ,  G11B27/36 ,  G11B2220/2516

摘要： Embodiments of the invention provide a magnetic disk drive that does not generate errors when information is read even if considerable time has elapsed after the information was written on the magnetic disk. In one embodiment, a magnetic disk has a storage area divided into a plurality of sectors ST1. Time stamps TP1 corresponding to each sector data m1 stored in the sectors ST1 are stored in a time stamp recording medium. A processor controls the magnetic disk drive to read time stamps TP2 of sector data m2 stored in any sectors ST2 of the sectors ST1 and refresh sector data m3 selected based on an elapsed time calculated from information about the time when the time stamps are read and the time stamps TP2.

摘要翻译： 本发明的实施例提供一种磁盘驱动器，即使在信息被写入磁盘之后经过相当长的时间，也不会产生错误。 在一个实施例中，磁盘具有被划分成多个扇区ST 1的存储区域。 对应于存储在扇区ST 1中的每个扇区数据m 1的时间戳TP1被存储在时间戳记录介质中。 处理器控制磁盘驱动器读取存储在扇区ST 1的任何扇区ST 2中的扇区数据m 2的时间标记TP 2和基于从关于时间的时间的信息计算的经过时间选择的刷新扇区数据m3 邮票被读取，时间戳TP 2。