公开(公告)号：US06549349B2

公开(公告)日：2003-04-15

申请号：US09955391

申请日：2001-09-18

申请人： Sri Muthuthamby Sri-Jayantha ,  Arun Sharma ,  Hien Phu Dang ,  Naoyuki Kagami ,  Yuzo Nakagawa ,  Akira Tokizono ,  Isao Yoneda

发明人： Sri Muthuthamby Sri-Jayantha ,  Arun Sharma ,  Hien Phu Dang ,  Naoyuki Kagami ,  Yuzo Nakagawa ,  Akira Tokizono ,  Isao Yoneda

IPC分类号： G11B2736

CPC分类号： G11B21/106 ,  G11B5/59611

摘要： Methods and systems for detecting and correcting for undesirable vibrations impacting the servo systems in data storage devices. A detection technique is provided wherein a detection filter is configured to scan a position signal of the servo system across a range of frequencies, and, at each respective scanned frequency, record an amplitude associated therewith. The recorded amplitudes are examined to determine whether any exceed a threshold, thereby locating a peak frequency of the vibration. Using the detected peak frequency of the vibration, a corrective filter is configured to operate about the peak frequency of vibration, thereby reducing its impact on the position signal in the servo system. Optimum detection and correction filter structures are disclosed, as are techniques for addressing filter state vectors as initial conditions as the corrective filters are repeatedly engaged during successive settle-out and track follow cycles (between seeks), as are continuous adaptation techniques for changing vibration environments.

摘要翻译： 用于检测和校正影响数据存储设备中的伺服系统的不期望的振动的方法和系统。 提供了一种检测技术，其中检测滤波器被配置为扫描频率范围内的伺服系统的位置信号，并且在每个相应的扫描频率处记录与之相关联的振幅。 检查记录的振幅以确定是否有超过阈值，从而定位振动的峰值频率。 使用检测到的振动峰值频率，校正滤波器被配置为围绕振动的峰值频率运行，从而减小其对伺服系统中位置信号的影响。 公开了最佳检测和校正滤波器结构，作为用于将滤波器状态向量寻址作为初始条件的技术，校正滤波器在连续的稳定和跟踪周期（寻找之间）期间重复接合），以及用于改变振动环境的连续自适应技术 。

公开(公告)号：US06181507B2

公开(公告)日：2001-01-30

申请号：US08692164

申请日：1996-08-05

申请人： Nobuyuki Kitazaki ,  Kiyoshi Satoh ,  Arun Sharma ,  Sri Muthuthamby Sri-Jayantha ,  Isao Yoneda

发明人： Nobuyuki Kitazaki ,  Kiyoshi Satoh ,  Arun Sharma ,  Sri Muthuthamby Sri-Jayantha ,  Isao Yoneda

IPC分类号： G11B5596

CPC分类号： G11B5/59605 ,  G11B5/59627 ,  G11B5/5965

摘要： A method and system for reducing positioning noise in a data storage system are provided. An access device is positioned over a data storage medium using a stream of bursts stored on the medium. The bursts are sensed at a frequency determined by the rate at which the medium is moved relative to a sensing device. Output positioning values are provided to position the access device at a frequency higher than the frequency at which the positioning bursts are sensed, and/or at random times. The random times may be calculated as random advances or delays from time points occurring at a fixed frequency.

摘要翻译： 提供了一种用于降低数据存储系统中的定位噪声的方法和系统。 访问设备使用存储在介质上的突发流来定位在数据存储介质上。 以由介质相对于感测装置移动的速率确定的频率感测脉冲串。 提供输出定位值以将访问设备定位在高于感测定位脉冲串的频率的频率处和/或随机时间。 随机时间可以被计算为在固定频率发生的时间点的随机前进或延迟。

公开(公告)号：US6141366A

公开(公告)日：2000-10-31

申请号：US174308

申请日：1998-10-19

申请人： Isao Yoneda

发明人： Isao Yoneda

IPC分类号： G02B6/42 ,  H01S5/00 ,  H01S5/026 ,  H01S5/042 ,  H01S5/40 ,  G02B6/30 ,  G02B6/36

CPC分类号： H01S5/4025 ,  G02B6/4249 ,  H01S5/0425

摘要： It is an object of the invention to effectively use semiconductor laser elements by suppressing difficulties caused by heat generated at the times of mounting and light emission in the semiconductor laser elements. A semiconductor laser module comprises a light source-mounting section, on which plural semiconductor laser elements are mounted and optical fiber-fixing section, which upports plural optical fibers at a predetermined lateral pitch. A pitch-converting section is provided between the light source-mounting section and the optical fiber-fixing section in order to respectively guide lights semitted from the semiconductor laser elements to the corresponding optical fibers. The light source-mounting section, the pitch-converting section and the optical fiber fixing section are formed on the same substrate.

摘要翻译： 本发明的目的是通过抑制在半导体激光元件中的安装和发光时产生的热量引起的困难来有效地使用半导体激光元件。 半导体激光器模块包括安装有多个半导体激光元件的光源安装部分和以预定横向间距上行多个光纤的光纤固定部分。 在光源安装部分和光纤固定部分之间设置有音调转换部分，以便将从半导体激光元件散射的光分别引导到对应的光纤。 光源安装部，音调转换部和光纤固定部形成在同一基板上。

公开(公告)号：US5717803A

公开(公告)日：1998-02-10

申请号：US747817

申请日：1996-11-13

申请人： Isao Yoneda ,  Junichi Sasaki ,  Masataka Itoh ,  Hiroshi Honmou

发明人： Isao Yoneda ,  Junichi Sasaki ,  Masataka Itoh ,  Hiroshi Honmou

IPC分类号： G02B6/42 ,  H01L31/0232 ,  H01L33/60 ,  H01L33/62 ,  G02B6/36

CPC分类号： G02B6/4224 ,  G02B6/4214 ,  G02B6/4232 ,  G02B6/4249

摘要： The optical fibers are arranged in a V groove formed at the surface of a silicon substrate and a cover is provided thereon. An electrode for solder bump is respectively formed at the position opposed with each other to the substrate and cover. These substrate and cover are deposited with solder in order to fix the optical fibers. The substrate or cover is previously provided, at the end point part of the optical fibers, with the mark for the positioning in the longitudinal direction of the optical fibers. The optical fibers are positioned with this mark. Here, the side surface of the optical fibers is provided with the metallized area at the position located in the predetermined distance from the end point thereof. Before fixing with the cover, the optical fibers can be deposited automatically to the predetermined position without alignment due to the self-alignment effect between the mark and metallized area. Meanwhile, the optical element can be deposited with the solder bump without adjustment to the area near the end point of the optical fiber by utilizing the self-alignment. Here, it is also possible to form the mark to the substrate for measuring the mounting position of the optical element after deposition thereof.

摘要翻译： 光纤布置在形成在硅衬底表面上的V沟槽中，并且在其上设置盖。 用于焊料凸点的电极分别形成在与基板和盖相对的位置上。 这些基板和盖子用焊料沉积以固定光纤。 预先在光纤的端点部分设置有用于在光纤的纵向上定位的标记的基板或盖。 光纤用这个标记定位。 这里，光纤的侧表面设置有位于距其端点预定距离的位置处的金属化区域。 在用盖子固定之前，由于标记和金属化区域之间的自对准效应，光纤可以自动沉积到预定位置而不进行对准。 同时，通过利用自对准，光学元件可以沉积有焊料凸块而不调整到光纤端点附近的区域。 这里，也可以在用于测量光学元件的沉积后的安装位置的基板上形成标记。

公开(公告)号：US07675701B2

公开(公告)日：2010-03-09

申请号：US11600593

申请日：2006-11-15

申请人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

发明人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

IPC分类号： G11B5/09

CPC分类号： G11B5/59688

摘要： Detection capability of a servo timing mark (STM) is improved. Long STM is configured by pseudo-STM forming part of an AGC/PLL pattern and intrinsic STM. When a system can not recognize the intrinsic STM, it keeps a state that a sector detection window is opened, and is operated in a long STM detection mode to recognize the long STM, thereby generates an STM detection signal. After the STM detection signal has been generated, an STM detection window is closed, and the system is operated in an intrinsic STM detection mode. Since the long STM has longer bit length than the intrinsic STM, it has high discriminating power with respect to other bit patterns. Therefore, even if the sector detection window is remained to be in an opened state, bit strings of data sector, address information in a servo sector or the like is not falsely recognized.

摘要翻译： 提高伺服定时标志（STM）的检测能力。 长STM由构成AGC / PLL模式和固有STM的一部分的伪STM构成。 当系统不能识别本征STM时，它保持扇区检测窗口打开的状态，并且以长STM检测模式操作以识别长STM，从而生成STM检测信号。 在产生STM检测信号之后，关闭STM检测窗口，并以本征STM检测模式操作系统。 由于长的STM具有比固有的STM更长的位长度，所以它对于其他位模式具有很高的识别能力。 因此，即使扇区检测窗口保持为打开状态，也不会错误地识别数据扇区的位串，伺服扇区中的地址信息等。

公开(公告)号：US07558017B2

公开(公告)日：2009-07-07

申请号：US11789770

申请日：2007-04-24

申请人： Isao Yoneda ,  Kazuyuki Ishibashi ,  Takeshi Chawanya ,  Hiroshi Uchida

发明人： Isao Yoneda ,  Kazuyuki Ishibashi ,  Takeshi Chawanya ,  Hiroshi Uchida

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/5526 ,  G11B21/12

摘要： Embodiments in accordance with the present invention provide a magnetic disk drive with sufficiently low noise. A digital/analog converter supplies to a voice coil motor (VCM) driver a control voltage comprising a first preset voltage value, a second preset voltage value, and a transition voltage value of a substantially cosine wave that interconnects the first preset voltage value and the second preset voltage value. A driving current is supplied from the VCM driver to a voice coil of an actuator assembly. Since a current not containing higher-harmonic components in a transition period flows as a VCM current that flows into the voice coil, vibromotive force can be easily suppressed by shifting a structural resonance point of the entire disk drive including the actuator assembly. In addition, since the back electromotive force occurring in an inductance element is cleared to zero during a half wavelength of period of the cosine wave, speed electromotive force can be measured by immediate shifting from a setting period to a measuring period.

摘要翻译： 根据本发明的实施例提供具有足够低噪声的磁盘驱动器。 数字/模拟转换器向音圈电机（VCM）驱动器提供包括第一预设电压值，第二预设电压值和互连第一预设电压值和基本上余弦波的转换电压值的控制电压， 第二预设电压值。 驱动电流从VCM驱动器提供给致动器组件的音圈。 由于在过渡期间不包含高次谐波分量的电流作为流入音圈的VCM电流流动，所以通过移动包括致动器组件在内的整个磁盘驱动器的结构共振点，可以容易地抑制振动力。 此外，由于在余弦波的周期的半波长期间，电感元件中产生的反电动势被清零，所以可以通过立即从设定周期向测量周期移动来测量速度电动势。

公开(公告)号：US20070253089A1

公开(公告)日：2007-11-01

申请号：US11796255

申请日：2007-04-26

申请人： Yukiko Hayashi ,  Isao Yoneda ,  Gaku Ikedo ,  Nobuhisa Koide ,  Yuhji Amari

发明人： Yukiko Hayashi ,  Isao Yoneda ,  Gaku Ikedo ,  Nobuhisa Koide ,  Yuhji Amari

IPC分类号： G11B15/46

CPC分类号： G11B19/28 ,  G11B19/04

摘要： Embodiments in accordance with the present invention provide a disk drive that ensures quieter rotational acceleration of a recording disk. Certain embodiments relate to a hard disk drive that detects the vibration of an enclosure by monitoring, via a driver, a counter electromotive voltage generated in a voice coil motor. If the hard disk drive detects a predetermined level of vibration or higher in the enclosure, it switches the status of a drive signal applied to a spindle motor so as to reduce the current level or smooth the waveform. This ensures reduced vibration of the enclosure.

摘要翻译： 根据本发明的实施例提供了一种确保记录盘的更安静的旋转加速度的磁盘驱动器。 某些实施例涉及通过经由驱动器监视在音圈电机中产生的反电动势来检测外壳的振动的硬盘驱动器。 如果硬盘驱动器在机箱中检测到预定的振动水平或更高的振动，则切换施加到主轴电机的驱动信号的状态，以便降低电流水平或平滑波形。 这确保减少外壳的振动。

公开(公告)号：US20070146919A1

公开(公告)日：2007-06-28

申请号：US11600593

申请日：2006-11-15

申请人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

发明人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

IPC分类号： G11B5/09 ,  G11B20/10

CPC分类号： G11B5/59688

摘要： Detection capability of a servo timing mark (STM) is improved. Long STM is configured by pseudo-STM forming part of an AGC/PLL pattern and intrinsic STM. When a system can not recognize the intrinsic STM, it keeps a state that a sector detection window is opened, and is operated in a long STM detection mode to recognize the long STM, thereby generates an STM detection signal. After the STM detection signal has been generated, an STM detection window is closed, and the system is operated in an intrinsic STM detection mode. Since the long STM has longer bit length than the intrinsic STM, it has high discriminating power with respect to other bit patterns. Therefore, even if the sector detection window is remained to be in an opened state, bit strings of data sector, address information in a servo sector or the like is not falsely recognized.

摘要翻译： 提高伺服定时标志（STM）的检测能力。 长STM由构成AGC / PLL模式和固有STM的一部分的伪STM构成。 当系统不能识别本征STM时，它保持扇区检测窗口打开的状态，并且以长STM检测模式操作以识别长STM，从而生成STM检测信号。 在产生STM检测信号之后，关闭STM检测窗口，并以本征STM检测模式操作系统。 由于长的STM具有比固有的STM更长的位长度，所以它对于其他位模式具有很高的识别能力。 因此，即使扇区检测窗口保持为打开状态，也不会错误地识别数据扇区的位串，伺服扇区中的地址信息等。

公开(公告)号：US07209311B2

公开(公告)日：2007-04-24

申请号：US11063487

申请日：2005-02-22

申请人： Tetsuo Ueda ,  Isao Yoneda ,  Hideki Ohzeki ,  Naoyuki Minami

发明人： Tetsuo Ueda ,  Isao Yoneda ,  Hideki Ohzeki ,  Naoyuki Minami

IPC分类号： G11B5/596

CPC分类号： G11B5/596

摘要： Embodiments of the invention provide control of a disk data storage device to prevent off-track writing. In one embodiment, the SA acquires the CYLIDs and ADC Values generated from the SERVO SIGNALs acquired previously, and generates DACOUT which defines a driving current of the VCM driver. The SA monitors the DACOUT generated and determines whether the DACOUT is within a predefined range. If the DACOUT is outside the predefined range, data writing is inhibited. By monitoring the DACOUT, it is possible for the VCM driver to detect supply of an overcurrent to the VCM driver 210 beforehand, and off-track writing can thus be prevented.

摘要翻译： 本发明的实施例提供了一种磁盘数据存储设备的控制以防止偏离写入。 在一个实施例中，SA获取从先前获得的SERVO信号产生的CYLID和ADC值，并产生定义VCM驱动器的驱动电流的DACOUT。 SA监视生成的DACOUT，并确定DACOUT是否在预定义的范围内。 如果DACOUT超出预定范围，则禁止数据写入。 通过监视DACOUT，VCM驱动器可以预先检测到VCM驱动器210的过电流供应，从而可以防止偏离写入。

公开(公告)号：US20060176003A1

公开(公告)日：2006-08-10

申请号：US11346813

申请日：2006-02-03

申请人： Mirei Hosono ,  Isao Yoneda

发明人： Mirei Hosono ,  Isao Yoneda

IPC分类号： G05D23/275

CPC分类号： G11B5/5582 ,  G11B5/596 ,  G11B19/04

摘要： Embodiments of the invention provide a data storage apparatus and its control method capable of accurately reading/writing data. A data storage apparatus in an embodiment of the invention comprises: a servo control section which, based on servo data stored on the storage medium, generates servo control data to control the position of the head; a sensor to detect vibration; a compensation data generating section which generates compensation data to compensate for the head's position error caused by vibration; a drive signal generating section which can generate a drive signal to move the head based on the servo control data and the compensation data; an arithmetic processing section which updates a rating value to evaluate the level of vibration given to the data storage apparatus; and a determination processing section which, according to the updated rating value, determines whether to perform the compensation using the compensation data; wherein the drive signal generating section compensates the servo control data using the compensation data in generating the drive signal.

摘要翻译： 本发明的实施例提供一种能够准确地读/写数据的数据存储装置及其控制方法。 本发明实施例中的数据存储装置包括：伺服控制部，其基于存储在存储介质上的伺服数据，生成用于控制头部位置的伺服控制数据; 检测振动的传感器; 补偿数据生成部，生成用于补偿由振动引起的头部位置误差的补偿数据; 驱动信号生成部，其能够基于所述伺服控制数据和所述补偿数据生成用于移动所述头部的驱动信号; 算术处理部，其更新评价值，以评估给予所述数据存储装置的振动水平; 以及确定处理部，其根据所述更新的评价值，确定是否使用所述补偿数据进行所述补偿; 其中，所述驱动信号生成部在生成所述驱动信号时，使用所述补偿数据来补偿所述伺服控制数据。