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1. 发明授权

US06239940B1 Disk device and disk device calibrating method 失效
标题翻译：磁盘设备和磁盘设备校准方法
公开(公告)号：US06239940B1
公开(公告)日：2001-05-29
申请号：US08982868
申请日：1997-12-02
申请人： Tatsuro Sasamoto , Tatsuhiko Kosugi , Kazunori Mori , Susumu Yoshida
发明人： Tatsuro Sasamoto , Tatsuhiko Kosugi , Kazunori Mori , Susumu Yoshida
IPC分类号： G11B555
CPC分类号： G11B21/083 , G11B5/5547 , G11B7/08505 , G11B11/10563
摘要： A disk device performs feedforward servo control for moving a head to a target track. The disk device includes a calibrating portion for updating feedforward information, for moving the head, into information dedicated to the specific disk device; and a feedforward information storing portion for storing the feedforward information.
摘要翻译：磁盘装置执行用于将磁头移动到目标磁道的前馈伺服控制。磁盘装置包括用于将用于移动磁头的前馈信息更新为专用于特定磁盘设备的信息的校准部分; 以及用于存储前馈信息的前馈信息存储部分。

2. 发明授权

US07196865B2 Recording apparatus having discoid record mediums 失效
标题翻译：具有盘状记录介质的记录装置
公开(公告)号：US07196865B2
公开(公告)日：2007-03-27
申请号：US10691336
申请日：2003-10-22
申请人： Kazunori Mori , Isamu Tomita , Tatsuhiko Kosugi , Yoshiyuki Kagami
发明人： Kazunori Mori , Isamu Tomita , Tatsuhiko Kosugi , Yoshiyuki Kagami
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： A recording apparatus capable of securely reading out data for causing a head to follow along circular tracks set virtually. Therefore, on-track control along the virtual tracks is possible by the conversion data on the discoid record medium even when, for example, the printed circuit board in a recording apparatus has been replaced.
摘要翻译：一种记录装置，其能够安全地读出用于使磁头沿着实际设置的圆形轨迹跟随的数据。因此，即使例如记录装置中的印刷电路板已被更换，通过盘状记录介质上的转换数据也可以沿着虚拟轨道进行磁道轨迹控制。

3. 发明授权

US06556368B1 Disk apparatus and control method therefor 有权
标题翻译：磁盘设备及其控制方法
公开(公告)号：US06556368B1
公开(公告)日：2003-04-29
申请号：US09412039
申请日：1999-10-04
申请人： Kazunori Mori , Tatsuhiko Kosugi
发明人： Kazunori Mori , Tatsuhiko Kosugi
IPC分类号： G11B2102
CPC分类号： G11B5/59627 , G11B5/5565 , G11B21/106
摘要： A method for controlling a disk apparatus in which a head scans tracks on a disk to record or retrieve information. The method includes a position error detection procedure which detects a position error between said head and said track, a phase control procedure which advances a phase of said position error detected by said position error detection procedure by a predetermined value and a head control procedure which controls a position of said head according to the position error which is advanced in phase by said phase control procedure.
摘要翻译：一种用于控制磁盘装置的方法，其中磁头扫描磁盘上的磁迹以记录或检索信息。该方法包括：检测所述头部和所述轨道之间的位置误差的位置误差检测过程，将通过所述位置误差检测过程检测到的所述位置误差的相位推进预定值的相位控制过程，以及控制所述头部根据通过所述相位控制程序进行同步的位置误差的位置。

4. 发明授权

US07050250B2 Storage apparatus and storage medium 有权
标题翻译：存储设备和存储介质
公开(公告)号：US07050250B2
公开(公告)日：2006-05-23
申请号：US10787064
申请日：2004-02-25
申请人： Tatsuhiko Kosugi , Isamu Tomita , Kazunori Mori , Yoshiyuki Kagami , Ryuki Kubohara
发明人： Tatsuhiko Kosugi , Isamu Tomita , Kazunori Mori , Yoshiyuki Kagami , Ryuki Kubohara
IPC分类号： G11B5/09
CPC分类号： G11B27/3027 , G11B2220/20
摘要： There are provided a storage apparatus and a computer-readable recording medium, on whose storage areas, servo frames are arranged at uniform intervals in a spoke-like pattern. Each of the servo frames has an index bit storing section storing, as an index bit, part of an index pattern, which is operable to identify a storage area. The apparatus and the recording medium have a storage area recognizing unit for recognizing the storage areas based on the index bits, which are obtained by an index bit obtaining unit. The index bits, stored one in each of the index bit storing sections of the servo frames, are adapted to form, when being sequentially arranged, an index bit string in which such an index pattern repeatedly appears.
摘要翻译：提供了一种存储装置和计算机可读记录介质，其存储区域以伺服帧以均匀的间隔以轮辐状图案布置。每个伺服帧具有索引位存储部分，其存储可用于识别存储区域的索引图案的一部分作为索引位。设备和记录介质具有存储区域识别单元，用于基于由索引位获取单元获得的索引位来识别存储区域。存储在伺服帧的每个索引位存储部分中的索引位适于在顺序排列时形成重复出现这种索引图案的索引位串。

5. 发明授权

US06774615B2 Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences 失效
标题翻译：谐振频率测量方法通过对偏离轨迹发生次数进行计数来确定谐振频率
公开(公告)号：US06774615B2
公开(公告)日：2004-08-10
申请号：US10056865
申请日：2002-01-25
申请人： Susumu Yoshida , Shuichi Hashimoto , Ryuki Kubohara , Tatsuhiko Kosugi , Takeyori Hara , Yoshiyuki Kagami
发明人： Susumu Yoshida , Shuichi Hashimoto , Ryuki Kubohara , Tatsuhiko Kosugi , Takeyori Hara , Yoshiyuki Kagami
IPC分类号： G06M110
CPC分类号： G11B21/10
摘要： A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method comprises the measuring step of applying sine-wave oscillations at different frequencies one by one to the mechanism unit, and counting the number of times information reproduced upon application of each of the sine-wave oscillations differs from information indicating an aimed location, and the resonance-frequency determining step of determining the resonance frequency according to the number of times counted in the measuring step.
摘要翻译：谐振频率测量方法用于通过驱动机构单元来测量记录在介质上的信息记录/再现装置再现信息的共振频率。谐振频率测量方法包括测量步骤，将不同频率的正弦波振荡逐个地施加到机构单元，并且计数在应用每个正弦波振荡时再现的信息的数量不同于指示以及谐振频率确定步骤，用于根据在测量步骤中计数的次数来确定谐振频率。

6. 发明申请

US20050088775A1 Recording apparatus having discoid record mediums 失效
标题翻译：具有盘状记录介质的记录装置
公开(公告)号：US20050088775A1
公开(公告)日：2005-04-28
申请号：US10691336
申请日：2003-10-22
申请人： Kazunori Mori , Isamu Tomita , Tatsuhiko Kosugi , Yoshiyuki Kagami
发明人： Kazunori Mori , Isamu Tomita , Tatsuhiko Kosugi , Yoshiyuki Kagami
IPC分类号： G11B5/55 , G11B5/596
CPC分类号： G11B5/5547
摘要： A recording apparatus capable of securely reading out data for causing a head to follow along circular tracks set virtually. Therefore, on-track control along the virtual tracks is possible by the conversion data on the discoid record medium even when, for example, the printed circuit board in a recording apparatus has been replaced.
摘要翻译：一种记录装置，其能够安全地读出用于使磁头沿着实际设置的圆形轨迹跟随的数据。因此，即使例如记录装置中的印刷电路板已被更换，通过盘状记录介质上的转换数据也可以沿着虚拟轨道进行磁道轨迹控制。

7. 发明授权

US5694265A Disk apparatus for detecting position of head by reading phase servo pattern 失效
标题翻译：用于通过读取相位伺服模式来检测头部的位置的盘装置
公开(公告)号：US5694265A
公开(公告)日：1997-12-02
申请号：US298052
申请日：1994-08-30
申请人： Tatsuhiko Kosugi , Susumu Yoshida , Makoto Chiba , Syuichi Hashimoto , Masahide Kanegae
发明人： Tatsuhiko Kosugi , Susumu Yoshida , Makoto Chiba , Syuichi Hashimoto , Masahide Kanegae
IPC分类号： G11B5/596 , G11B5/09
CPC分类号： G11B5/596
摘要： A duty pulse is formed by setting in response to a leading edge of a clock synchronized with a peak detection of a servo frame read signal by a peak detecting circuit and by resetting by a signal by which a zero-cross point of a read signal of a phase servo pattern was detected. A head position signal is formed by integrating the duty pulse. Since there is a deviation of the timings between the peak detection and the zero-cross detection, a duty ratio is measured so as to be adjusted to 50% in the on-track state of a target cylinder. The timings for a reference clock and a zero-cross detection pulse are delayed and adjusted accordingly.
摘要翻译：通过响应于与由峰值检测电路的伺服帧读取信号的峰值检测同步的时钟的前沿设置响应于占空比脉冲，并且通过将信号的读取信号的零交叉点检测到相位伺服模式。通过对占空比脉冲进行积分来形成头位置信号。由于峰值检测和过零检测之间的定时存在偏差，因此在目标气缸的导轨状态下测量占空比以便调整为50％。参考时钟和零交叉检测脉冲的定时被相应地延迟和调整。

8. 发明申请

US20100134913A1 FREQUENCY CONTROL APPARATUS AND STORAGE DEVICE 审中-公开
标题翻译：频率控制装置和存储装置
公开(公告)号：US20100134913A1
公开(公告)日：2010-06-03
申请号：US12568239
申请日：2009-09-28
申请人： Tatsuhiko Kosugi , Takeyori Hara , Toru Ikeda , Susumu Yoshida
发明人： Tatsuhiko Kosugi , Takeyori Hara , Toru Ikeda , Susumu Yoshida
IPC分类号： G11B5/09
CPC分类号： G11B5/59627
摘要： According to one embodiment, a frequency control apparatus includes an eccentric component storage module, a frequency correction amount calculating module, and an oscillator control module. The eccentric component storage module stores in advance an eccentric component calculated by a discrete Fourier transform of the number of clock signals measured for each servo frame. The frequency correction amount calculating module calculates the number of clock signals corresponding to the servo frame based on the eccentric component stored in the eccentric component storage module and calculates a frequency correction amount corresponding to the servo frame based on the number of clock signals. The oscillator control module controls the operation of a frequency oscillator such that a frequency for oscillating a clock signal in the frequency oscillator is adjusted according to the frequency correction amount calculated by the frequency correction amount calculating module.
摘要翻译：根据一个实施例，频率控制装置包括偏心分量存储模块，频率校正量计算模块和振荡器控制模块。偏心部件存储模块预先存储通过对每个伺服帧测量的时钟信号的数量的离散傅里叶变换计算出的偏心分量。频率校正量计算模块基于存储在偏心分量存储模块中的偏心分量来计算与伺服帧对应的时钟信号的数量，并且基于时钟信号的数量计算与伺服帧对应的频率校正量。振荡器控制模块控制频率振荡器的操作，使得根据由频率校正量计算模块计算出的频率校正量来调整振荡频率振荡器中的时钟信号的频率。

9. 发明授权

US08625230B2 Position demodulator and position demodulation method 有权
标题翻译：位置解调器和位置解调方法
公开(公告)号：US08625230B2
公开(公告)日：2014-01-07
申请号：US13370230
申请日：2012-02-09
申请人： Tatsuhiko Kosugi , Kazuhiko Takaishi , Takeshi Hara , Hiroshi Oyabu
发明人： Tatsuhiko Kosugi , Kazuhiko Takaishi , Takeshi Hara , Hiroshi Oyabu
IPC分类号： G11B20/20
CPC分类号： G11B5/59644 , G11B20/10222 , G11B20/10268 , G11B2020/1281 , G11B2220/2516
摘要： According to one embodiment, a position demodulator includes a demodulator, a phase corrector, and a position demodulating module. The demodulator demodulates a first demodulated signal and a second demodulated signal having a phase difference of 90 degrees from the first demodulated signal as a result of discrete Fourier transform operation on a read signal of a null servo pattern recorded in a servo area of a medium read out by a head. The phase corrector carries out correction to tilt respective vectors of the first demodulated signal and the second demodulated signal represented on a phase plane by a predetermined angle. The position demodulating module demodulates a positional signal for determining the position of the core of the head based on the first demodulated signal and the second demodulated signal corrected by the phase corrector.
摘要翻译：根据一个实施例，位置解调器包括解调器，相位校正器和位置解调模块。解调器作为对记录在介质读取的伺服区域中的无效伺服模式的读取信号的离散傅立叶变换操作的结果，将与第一解调信号相差90度的第一解调信号和第二解调信号解调出头。相位校正器执行校正，以将相位平面上表示的第一解调信号和第二解调信号的各矢量倾斜预定角度。位置解调模块基于由相位校正器校正的第一解调信号和第二解调信号来解调用于确定头的核心的位置的位置信号。

10. 发明授权

US08446685B2 Servo frame interval correction apparatus, storage apparatus and servo frame interval correction method 有权
标题翻译：伺服帧间隔校正装置，存储装置和伺服帧间隔校正方法
公开(公告)号：US08446685B2
公开(公告)日：2013-05-21
申请号：US12212310
申请日：2008-09-17
申请人： Tatsuhiko Kosugi
发明人： Tatsuhiko Kosugi
IPC分类号： G11B5/09
CPC分类号： G11B5/59655
摘要： One aspect of the embodiment utilizes a servo frame interval correction apparatus which includes a detection unit for detecting a first servo frame formed on said recording medium. The apparatus includes an acquiring unit acquiring a detection time interval between said first servo frame and a second servo frame detected subsequently to the first servo frame from a table storing a detection time interval between a specific servo frame and a servo frame detected subsequently to the specific servo frame. The apparatus includes a differential calculation unit calculating a differential between the detection time interval acquired by said acquiring unit and a reference time interval; and a correction unit correcting an estimated position of said second servo frame based on the differential calculated by said differential calculation unit.
摘要翻译：本实施例的一个方面利用了伺服帧间隔校正装置，其包括用于检测形成在所述记录介质上的第一伺服帧的检测单元。该装置包括获取单元，从存储特定伺服帧和随后特定伺服帧检测到的伺服帧之间的检测时间间隔的表中获取所述第一伺服帧和随后的第一伺服帧所检测的第二伺服帧之间的检测时间间隔伺服框架该装置包括：差分计算单元，计算由所述获取单元获取的检测时间间隔与参考时间间隔之间的差值; 以及校正单元，基于由所述差分计算单元计算的差分来校正所述第二伺服帧的估计位置。

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